MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca. 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: 20


Intelligence 20 IOCs YARA 23 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca
SHA3-384 hash: 5a0867746a8f927a799404391163f95cb1deb796d06d140cdb761f45b4175ffa8b467dbd782a2e66c585bf282e518244
SHA1 hash: ff35cbea59d3341e1c0247d7cc6567a96424f6dd
MD5 hash: eebe352d8dafa84919d45ee16a58e96a
humanhash: oxygen-shade-april-juliet
File name:eebe352d8dafa84919d45ee16a58e96a.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:6'332'232 bytes
First seen:2025-03-10 08:10:17 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:j3GclC+i0bBHXGgjaQx+OhfzTxzdloaD85BKtxo5fQIwuhksUwj:j3GSCj0bR2Ej1hbTxk7zKYAEkUj
TLSH T16E561204B3D42EEDC12A6274D4615A71E2FAB80E2A778BBF0558D2771D23745CE39B23
TrID 72.5% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
15.7% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
4.5% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
2.8% (.EXE) Win64 Executable (generic) (10522/11/4)
1.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
dhash icon 9494b494d4aeaeac (832 x DCRat, 172 x RedLineStealer, 134 x CryptOne)
Reporter abuse_ch
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
411
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
7842454c707050024b8c0c9d404b2c899eb3113b6cedd6440dbb4a8c1edc8ded.exe
Verdict:
Malicious activity
Analysis date:
2024-11-20 01:12:07 UTC
Tags:
loader quasar
Link:
https://app.any.run/tasks/d1f3b8cc-805b-4da5-8600-5b1418400c68

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=67cea84a1f777fe306088a8f
Tags:
infosteal autorun quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm explorer fingerprint infostealer keylogger krypt lolbin microsoft_visual_cc obfuscated overlay packed packed packed packer_detected quasarrat rat reconnaissance remote runonce schtasks stealer stealer
Link:
https://www.filescan.io/uploads/67ce9ea0e95d0f9029e6af15/reports/110f067f-c2f8-4405-86e6-1a164d7b31a9/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca
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.
Malware family:
XMRig Miner
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7c9b6334-1673-4134-8d8e-aa3182369389
Result
Threat name:
Quasar, R77 RootKit
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1633350
Signature
.NET source code contains process injector
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Antivirus detection for dropped file
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
Found stalling execution ending in API Sleep call
Hides that the sample has been downloaded from the Internet (zone.identifier)
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Sample uses string decryption to hide its real strings
Sigma detected: Invoke-Obfuscation CLIP+ Launcher
Sigma detected: Invoke-Obfuscation VAR+ Launcher
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: Potentially Suspicious PowerShell Child Processes
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
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 AntiVM3
Yara detected Quasar RAT
Yara detected R77 RootKit
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1633350 Sample: OP44BdSHdP.exe Startdate: 10/03/2025 Architecture: WINDOWS Score: 100 94 Found malware configuration 2->94 96 Malicious sample detected (through community Yara rule) 2->96 98 Antivirus detection for dropped file 2->98 100 18 other signatures 2->100 9 OP44BdSHdP.exe 1 8 2->9         started        12 powershell.exe 2->12         started        15 powershell.exe 2->15         started        17 2 other processes 2->17 process3 file4 82 C:\Users\user\Desktop\PMCMEennsgfcd48.exe, PE32 9->82 dropped 84 C:\Users\user\Desktop\OlclepmDFD41df.exe, PE32+ 9->84 dropped 86 C:\Users\user\Desktop\COSPEMfr5s60.exe, PE32+ 9->86 dropped 19 COSPEMfr5s60.exe 4 9->19         started        23 PMCMEennsgfcd48.exe 5 9->23         started        150 Writes to foreign memory regions 12->150 152 Modifies the context of a thread in another process (thread injection) 12->152 154 Injects a PE file into a foreign processes 12->154 25 dllhost.exe 12->25         started        27 conhost.exe 12->27         started        29 dllhost.exe 15->29         started        31 conhost.exe 15->31         started        88 C:\Windows\Temp\F070.tmp, PE32+ 17->88 dropped 156 Adds a directory exclusion to Windows Defender 17->156 158 Maps a DLL or memory area into another process 17->158 160 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->160 162 Found direct / indirect Syscall (likely to bypass EDR) 17->162 33 powershell.exe 17->33         started        signatures5 process6 file7 76 C:\Users\user\AppData\Local\Temp\63F0.tmp, PE32+ 19->76 dropped 78 C:\Program Files\Cuis\bon\Bara.exe, PE32+ 19->78 dropped 124 Antivirus detection for dropped file 19->124 126 Multi AV Scanner detection for dropped file 19->126 128 Suspicious powershell command line found 19->128 148 6 other signatures 19->148 35 cmd.exe 19->35         started        38 cmd.exe 19->38         started        49 4 other processes 19->49 80 C:\Users\user\AppData\Roaming\...\Client.exe, PE32 23->80 dropped 130 Uses schtasks.exe or at.exe to add and modify task schedules 23->130 132 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->132 40 Client.exe 2 23->40         started        43 schtasks.exe 1 23->43         started        134 Found stalling execution ending in API Sleep call 25->134 136 Injects code into the Windows Explorer (explorer.exe) 25->136 138 Contains functionality to inject code into remote processes 25->138 45 lsass.exe 25->45 injected 51 6 other processes 25->51 140 Writes to foreign memory regions 29->140 142 Creates a thread in another existing process (thread injection) 29->142 144 Injects a PE file into a foreign processes 29->144 53 8 other processes 29->53 146 Loading BitLocker PowerShell Module 33->146 47 conhost.exe 33->47         started        signatures8 process9 dnsIp10 102 Uses cmd line tools excessively to alter registry or file data 35->102 104 Uses powercfg.exe to modify the power settings 35->104 106 Stops critical windows services 35->106 55 conhost.exe 35->55         started        68 10 other processes 35->68 108 Modifies power options to not sleep / hibernate 38->108 57 conhost.exe 38->57         started        70 4 other processes 38->70 90 185.148.3.216, 4000, 49683 MAGNA-CAPAXFI Finland 40->90 110 Antivirus detection for dropped file 40->110 112 Multi AV Scanner detection for dropped file 40->112 114 Hides that the sample has been downloaded from the Internet (zone.identifier) 40->114 116 Installs a global keyboard hook 40->116 59 schtasks.exe 1 40->59         started        61 conhost.exe 43->61         started        118 Writes to foreign memory regions 45->118 63 svchost.exe 45->63         started        120 Loading BitLocker PowerShell Module 49->120 66 conhost.exe 49->66         started        72 3 other processes 49->72 122 Found direct / indirect Syscall (likely to bypass EDR) 53->122 signatures11 process12 dnsIp13 74 conhost.exe 59->74         started        92 127.0.0.1 unknown unknown 63->92 process14
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca/
Threat name:
Win64.Trojan.Vigorf
Create hunting rule
Status:
Malicious
First seen:
2024-11-15 19:33:06 UTC
File Type:
PE+ (Exe)
Extracted files:
22
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jtj7mdm376iduvvpyxq4nqdmopzjhl2ayygamrj7kx2bmdiwgxfa._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
error
QuasarRAT
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/250310-j3c2baysh1/
Behaviour
Detects videocard installed
Modifies data under HKEY_USERS
Modifies registry class
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of UnmapMainImage
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
Checks computer location settings
Executes dropped EXE
Indicator Removal: Clear Windows Event Logs
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
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:
stealer rat quasar_rat Win.Malware.Bulz-9823462-0
YARA:
MALWARE_Win_Quasarstealer malware_windows_quasarrat MAL_QuasarRAT_May19_1
Link:
https://app.threat.zone/submission/c6088118-2a73-43f8-950b-3d3e8d72d7f3
Unpacked files
SH256 hash:
4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca
MD5 hash:
eebe352d8dafa84919d45ee16a58e96a
SHA1 hash:
ff35cbea59d3341e1c0247d7cc6567a96424f6dd
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/9c2b97f8-0f9c-4a73-975d-ca91570fb836/
SH256 hash:
de83dd82da3ebaa2c09fd75a7307ad5e2031ad8c911cd75753ffef3eb1571f0a
MD5 hash:
8e40252356a6fb3f8f52d1effa2c2c3c
SHA1 hash:
3bf5461b591a53dcb48ea2dc6535cd90aa786c4e
Link:
https://www.unpac.me/results/9c2b97f8-0f9c-4a73-975d-ca91570fb836/
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/9c2b97f8-0f9c-4a73-975d-ca91570fb836/
Parent samples :
210673b54f64ba4504b4ffb778b245261ba47ba659bfe14cd66290bf9c0f64ba
647fb95e4fbe4daaaff5dd81e69c2cef8c12d8f5a6f7c95d88f67de72e542b06
6af6769000ad2f44a4396ebbbf81fe1b34c3ad17f0a68251cd9784ce12f9cd8f
b1336c80bc2ba177ffcf3000f209bfb72f6e858e17976427e2155578f06e7d17
4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4cd3f60d9bff/report/overview.html
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/4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca

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:DebuggerCheck__API
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: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:MAL_QuasarRAT_May19_1
Create hunting rule
Description:Detects QuasarRAT malware
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: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: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:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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: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:Windows_Generic_Threat_e8abb835
Create hunting rule
Author:Elastic Security

File information

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

Web download

QuasarRAT

Executable exe 4cd3f60d9bff903a56afc5e1c6c06c73f293af40c60c06453f55f4160d1635ca

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3472771/
  
Delivery method
Distributed via web download

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

Comments