MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1336c80bc2ba177ffcf3000f209bfb72f6e858e17976427e2155578f06e7d17. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


QuasarRAT


Vendor detections: 16


Intelligence 16 IOCs YARA 40 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1336c80bc2ba177ffcf3000f209bfb72f6e858e17976427e2155578f06e7d17
SHA3-384 hash: b916c69cad3ca9bc0af4eb257361b541383bcc843ddf854f11a6be4c3c09d73512f8d8ff5c3857c3ac14a97ae0eff900
SHA1 hash: cbe1783b6191ec8c733699ae222117136ae97e77
MD5 hash: e18ea2fa8c363f0ada5683b139578723
humanhash: dakota-whiskey-michigan-cup
File name:e18ea2fa8c363f0ada5683b139578723.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:5'100'947 bytes
First seen:2025-02-24 10:27:44 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b1c5b1beabd90d9fdabd1df0779ea832 (11 x CoinMiner, 10 x QuasarRAT, 8 x AsyncRAT)
ssdeep 98304:j3GfHr1eXNh6DL4FDtQTDrSF4cMvt2AY35dUfowtIQvVOeLd:j3GfL4dhxBtQ7PhtU3TUvvMeLd
TLSH T1A9362345E3D905B8E0B7B978C9668912E7B77C4B0370968F42BD095E0F67390DD3A722
TrID 76.9% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
16.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
3.0% (.EXE) Win64 Executable (generic) (10522/11/4)
1.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
0.5% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 9494b494d4aeaeac (832 x DCRat, 172 x RedLineStealer, 134 x CryptOne)
Reporter abuse_ch
Tags:exe QuasarRAT RAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
51
Origin country :
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
files.catbox.moe/zxiwg7.7z
Verdict:
Malicious activity
Analysis date:
2025-02-14 17:05:20 UTC
Tags:
fileshare arch-exec arch-doc loader miner
Link:
https://app.any.run/tasks/a72ae691-24b6-43cd-b39c-dce5b3796bba

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67bc49c028ab76d43a5cd806
Tags:
infosteal autorun quasar cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Creating a process from a recently created file
Creating a file in the %AppData% subdirectories
Launching a process
Deleting a system file
Running batch commands
Creating a service
Launching a service
Creating a file in the Windows subdirectories
Creating a file in the Program Files subdirectories
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Enabling autorun for a service
Enabling autorun by creating a file
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm fingerprint microsoft_visual_cc obfuscated overlay packed packer_detected
Link:
https://www.filescan.io/uploads/67bc49bf6222db7f23d9d4bd/reports/3c5475e5-7156-427d-bc7f-cd6b1511acea/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b1336c80bc2ba177ffcf3000f209bfb72f6e858e17976427e2155578f06e7d17
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/f199bd0b-31f4-4873-a59b-f3a32564d9de
Result
Threat name:
Quasar, R77 RootKit
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1622623
Signature
.NET source code contains process injector
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to compare user and computer (likely to detect sandboxes)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hooks files or directories query functions (used to hide files and directories)
Hooks processes query functions (used to hide processes)
Hooks registry keys query functions (used to hide registry keys)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies power options to not sleep / hibernate
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Sigma detected: Disable power options
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Stop EventLog
Sigma detected: Stop multiple services
Stops critical windows services
Suspicious powershell command line found
Uses cmd line tools excessively to alter registry or file data
Uses powercfg.exe to modify the power settings
Uses Register-ScheduledTask to add task schedules
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Quasar RAT
Yara detected R77 RootKit
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1622623 Sample: 5sCSykYpHr.exe Startdate: 24/02/2025 Architecture: WINDOWS Score: 100 78 171.39.242.20.in-addr.arpa 2->78 100 Found malware configuration 2->100 102 Malicious sample detected (through community Yara rule) 2->102 104 Antivirus detection for dropped file 2->104 106 19 other signatures 2->106 10 5sCSykYpHr.exe 8 2->10         started        13 IORPSSCMRdd41.exe 2->13         started        signatures3 process4 file5 72 C:\Users\user\Desktop\ofpgDPht4FES2.exe, PE32+ 10->72 dropped 74 C:\Users\user\Desktop\TEUkjfjeogt412s.exe, PE32+ 10->74 dropped 76 C:\Users\user\Desktop\IORPSSCMRdd41.exe, PE32 10->76 dropped 16 TEUkjfjeogt412s.exe 4 10->16         started        20 ofpgDPht4FES2.exe 1 2 10->20         started        22 IORPSSCMRdd41.exe 5 10->22         started        134 Hides that the sample has been downloaded from the Internet (zone.identifier) 13->134 136 Found direct / indirect Syscall (likely to bypass EDR) 13->136 signatures6 process7 file8 64 C:\Users\user\AppData\Local\Temp\5A38.tmp, PE32+ 16->64 dropped 66 C:\Program Files\Cuis\bon\Bara.exe, PE32+ 16->66 dropped 82 Antivirus detection for dropped file 16->82 84 Multi AV Scanner detection for dropped file 16->84 86 Suspicious powershell command line found 16->86 98 5 other signatures 16->98 24 cmd.exe 16->24         started        27 cmd.exe 16->27         started        29 powershell.exe 23 16->29         started        31 powershell.exe 16->31         started        68 C:\ProgramData\mxergolzfguk\kaptsegthwf.exe, PE32+ 20->68 dropped 88 Modifies the context of a thread in another process (thread injection) 20->88 90 Adds a directory exclusion to Windows Defender 20->90 92 Modifies power options to not sleep / hibernate 20->92 33 dialer.exe 20->33         started        35 powershell.exe 23 20->35         started        40 14 other processes 20->40 70 C:\Users\user\AppData\Roaming\...\Client.exe, Unknown 22->70 dropped 94 Uses schtasks.exe or at.exe to add and modify task schedules 22->94 96 Hides that the sample has been downloaded from the Internet (zone.identifier) 22->96 37 Client.exe 2 22->37         started        42 2 other processes 22->42 signatures9 process10 dnsIp11 108 Uses cmd line tools excessively to alter registry or file data 24->108 110 Uses powercfg.exe to modify the power settings 24->110 112 Stops critical windows services 24->112 56 11 other processes 24->56 114 Modifies power options to not sleep / hibernate 27->114 58 5 other processes 27->58 116 Loading BitLocker PowerShell Module 29->116 44 conhost.exe 29->44         started        46 conhost.exe 31->46         started        118 Injects code into the Windows Explorer (explorer.exe) 33->118 120 Contains functionality to inject code into remote processes 33->120 122 Writes to foreign memory regions 33->122 132 4 other signatures 33->132 48 winlogon.exe 33->48 injected 50 conhost.exe 35->50         started        80 185.148.3.216, 4000, 49704, 49705 MAGNA-CAPAXFI Finland 37->80 124 Antivirus detection for dropped file 37->124 126 Hides that the sample has been downloaded from the Internet (zone.identifier) 37->126 128 Installs a global keyboard hook 37->128 130 Found direct / indirect Syscall (likely to bypass EDR) 37->130 52 schtasks.exe 37->52         started        60 15 other processes 40->60 54 conhost.exe 42->54         started        signatures12 process13 process14 62 conhost.exe 52->62         started       
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b1336c80bc2ba177ffcf3000f209bfb72f6e858e17976427e2155578f06e7d17
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b1336c80bc2ba177ffcf3000f209bfb72f6e858e17976427e2155578f06e7d17/
Threat name:
Win64.Trojan.Reflo
Create hunting rule
Status:
Malicious
First seen:
2024-09-27 14:30:16 UTC
File Type:
PE+ (Exe)
Extracted files:
23
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wezwzaf4foqxp76pgaapecn7w4xw5bmoc6lwij7ccvkxr4dopulq._file
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:4drun defense_evasion discovery execution persistence spyware trojan
Link:
https://tria.ge/reports/250224-mhqnfsxk14/
Behaviour
Detects videocard installed
Modifies data under HKEY_USERS
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Power Settings
Executes dropped EXE
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Creates new service(s)
Sets service image path in registry
Stops running service(s)
Modifies security service
Quasar RAT
Quasar family
Quasar payload
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware Config
C2 Extraction:
185.148.3.216:4000
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e6f3dce1-318a-4bc1-b3bf-37be101888f2
Unpacked files
SH256 hash:
b1336c80bc2ba177ffcf3000f209bfb72f6e858e17976427e2155578f06e7d17
MD5 hash:
e18ea2fa8c363f0ada5683b139578723
SHA1 hash:
cbe1783b6191ec8c733699ae222117136ae97e77
Link:
https://www.unpac.me/results/dda2aa02-a5d1-4f9a-b93b-84a6f8bbc7b9/
SH256 hash:
19fd26fa3f76141cc05ef0c0c96ea91dcf900e760b57195f216a113b1cf69100
MD5 hash:
ea001f076677c9b0dd774ae670efdf63
SHA1 hash:
37a4466f3c38b60a30fc1073b9d0b2d2d0e692e5
Detections:
QuasarRAT
Create hunting rule
cn_utf8_windows_terminal
Create hunting rule
malware_windows_xrat_quasarrat
Create hunting rule
MAL_QuasarRAT_May19_1
Create hunting rule
Vermin_Keylogger_Jan18_1
Create hunting rule
win_quasarrat_j2
Create hunting rule
win_quasar_rat_client
Create hunting rule
INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_QuasarStealer
Create hunting rule
Link:
https://www.unpac.me/results/dda2aa02-a5d1-4f9a-b93b-84a6f8bbc7b9/
Parent samples :
210673b54f64ba4504b4ffb778b245261ba47ba659bfe14cd66290bf9c0f64ba
647fb95e4fbe4daaaff5dd81e69c2cef8c12d8f5a6f7c95d88f67de72e542b06
6af6769000ad2f44a4396ebbbf81fe1b34c3ad17f0a68251cd9784ce12f9cd8f
b1336c80bc2ba177ffcf3000f209bfb72f6e858e17976427e2155578f06e7d17
4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca
SH256 hash:
a92133787af66e6d68a301ef087e4116f5cab3f538d8ec5e5e0eb95cecc68ea8
MD5 hash:
952f360a4651f948be3a673178631641
SHA1 hash:
60e58b89cfce587aa121baf431d55cbbecd21545
Link:
https://www.unpac.me/results/dda2aa02-a5d1-4f9a-b93b-84a6f8bbc7b9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b1336c80bc2ba177ffcf3000f209bfb72f6e858e17976427e2155578f06e7d17

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:CAS_Malware_Hunting
Create hunting rule
Author:Michael Reinprecht
Description:DEMO CAS YARA Rules for sample2.exe
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Detect_Remcos_RAT
Create hunting rule
Author:daniyyell
Description:Detects Remcos RAT payloads and commands
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_GENInfoStealer
Create hunting rule
Author:ditekSHen
Description:Detects executables containing common artifacts observed in infostealers
Rule name:Lumma_Stealer_Detection
Create hunting rule
Author:ashizZz
Description:Detects a specific Lumma Stealer malware sample using unique strings and behaviors
Reference:https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
Rule name:MALWARE_Win_R77
Create hunting rule
Author:ditekSHen
Description:Detects r77 rootkit
Rule name:MAL_QuasarRAT_May19_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:MAL_QuasarRAT_May19_1_RID2E1E
Create hunting rule
Author:Florian Roth
Description:Detects QuasarRAT malware
Reference:https://blog.ensilo.com/uncovering-new-activity-by-apt10
Rule name:meth_peb_parsing
Create hunting rule
Author:Willi Ballenthin
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:quasarrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:quasarrat_kingrat
Create hunting rule
Author:jeFF0Falltrades
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SelfExtractingRAR
Create hunting rule
Author:Xavier Mertens
Description:Detects an SFX archive with automatic script execution
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Vermin_Keylogger_Jan18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects Vermin Keylogger
Reference:https://researchcenter.paloaltonetworks.com/2018/01/unit42-vermin-quasar-rat-custom-malware-used-ukraine/
Rule name:Windows_Rootkit_R77_5bab748b
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/elastic-security-labs-steps-through-the-r77-rootkit
Rule name:Windows_Rootkit_R77_d0367e28
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/elastic-security-labs-steps-through-the-r77-rootkit
Rule name:win_quasar_rat_client
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in Quasar Rat Samples.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (FORCE_INTEGRITY)high
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipAlloc
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::AllocConsole
KERNEL32.dll::AttachConsole
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateHardLinkW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW

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