MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79712e68d88a6d2d87555f24f9dc767868289ce0e70000c14e3e72df1b4a58f9. 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: 17


Intelligence 17 IOCs YARA 33 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 79712e68d88a6d2d87555f24f9dc767868289ce0e70000c14e3e72df1b4a58f9
SHA3-384 hash: bde611828cb7b8229a84985a8ca95e072059c446dcee409ac0de860398676b71352a92ddc031cb913bd9dae394982192
SHA1 hash: 2f33d50e879a18ff744424855d6356bae8f2d5d9
MD5 hash: 818c5a007a2075f7c56eb69b75d12acb
humanhash: helium-mango-bravo-crazy
File name:7a56b9a7be5d627a61b4fcd3716b73aefa76ecbe38c8edc5c11b47dedb3b888b.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:6'985'728 bytes
First seen:2025-03-22 05:45:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 196608:hwy9GeDVI5DKBWZlkgJedYs6LtYdEhqTgKDSy3n1B:hwykYVI5DK2NNs6LtYdEhSp24B
TLSH T1896612152629CF04F1954878E9342B44D46CBEE32E59D926F748397AC6FEB80B8B1373
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 61f8d0d4c8f070b2 (1 x QuasarRAT)
Reporter zhuzhu0009
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
421
Origin country :
JP JP
Vendor Threat Intelligence
Malware family:
quasar
Create hunting rule
ID:
1
File name:
VortexCrypter.exe
Verdict:
Malicious activity
Analysis date:
2025-03-22 04:41:37 UTC
Tags:
quasar crypto-regex
Link:
https://app.any.run/tasks/8808c335-c0db-4fff-bbb1-bd11c8dad609

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=67de3f80518d210202e7d96d
Tags:
infosteal vmdetect quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Сreating synchronization primitives
DNS request
Running batch commands
Launching a process
Creating a file in the %temp% subdirectories
Enabling the 'hidden' option for files in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file
Creating a window
Creating a file in the %AppData% subdirectories
Searching for synchronization primitives
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm anti-vm anti-vm backnet cmd evasive explorer explorer hacktool keylogger lolbin lolbin obfuscated obfuscated packed packed packer_detected quasarrat rat reconnaissance remote runonce schtasks vbnet vermin wmic
Link:
https://www.filescan.io/uploads/67de4e9ffae452b82c20f150/reports/2cf58744-28a8-4688-8a9a-2e28b5af4a3c/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/79712e68d88a6d2d87555f24f9dc767868289ce0e70000c14e3e72df1b4a58f9
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:
Malicious
Link:
https://analyze.intezer.com/analyses/2caea18d-423b-4bf3-9291-b468c8acfb0f
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1645683
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Sample uses string decryption to hide its real strings
Self deletion via cmd or bat file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1645683 Sample: 7a56b9a7be5d627a61b4fcd3716... Startdate: 22/03/2025 Architecture: WINDOWS Score: 100 76 movies-concerning.gl.at.ply.gg 2->76 78 ipwho.is 2->78 80 2 other IPs or domains 2->80 98 Found malware configuration 2->98 100 Malicious sample detected (through community Yara rule) 2->100 102 Antivirus / Scanner detection for submitted sample 2->102 104 9 other signatures 2->104 10 7a56b9a7be5d627a61b4fcd3716b73aefa76ecbe38c8edc5c11b47dedb3b888b.exe 14 8 2->10         started        14 Client.exe 2->14         started        signatures3 process4 file5 70 C:\Users\user\AppData\...\Vortex Crypter.exe, PE32 10->70 dropped 72 C:\Users\user\AppData\...\Client-built.exe, PE32 10->72 dropped 74 7a56b9a7be5d627a61...7dedb3b888b.exe.log, CSV 10->74 dropped 106 Self deletion via cmd or bat file 10->106 16 Client-built.exe 5 10->16         started        20 Vortex Crypter.exe 4 10->20         started        22 cmd.exe 1 10->22         started        24 2 other processes 10->24 signatures6 process7 file8 66 C:\Users\user\AppData\Roaming\...\Client.exe, PE32 16->66 dropped 86 Antivirus detection for dropped file 16->86 88 Multi AV Scanner detection for dropped file 16->88 90 Uses schtasks.exe or at.exe to add and modify task schedules 16->90 92 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->92 26 Client.exe 16->26         started        30 schtasks.exe 16->30         started        68 C:\Users\user\AppData\...\AgileDotNetRT64.dll, PE32+ 20->68 dropped 94 Query firmware table information (likely to detect VMs) 20->94 96 Tries to detect sandboxes / dynamic malware analysis system (registry check) 20->96 32 WerFault.exe 19 16 20->32         started        34 conhost.exe 22->34         started        36 timeout.exe 1 22->36         started        38 WMIC.exe 1 24->38         started        40 conhost.exe 24->40         started        signatures9 process10 dnsIp11 82 movies-concerning.gl.at.ply.gg 147.185.221.17, 12712, 49720, 49728 SALSGIVERUS United States 26->82 84 ipwho.is 108.181.98.179, 443, 49723 ASN852CA Canada 26->84 108 Antivirus detection for dropped file 26->108 110 Multi AV Scanner detection for dropped file 26->110 112 Adds a directory exclusion to Windows Defender 26->112 114 Hides that the sample has been downloaded from the Internet (zone.identifier) 26->114 42 schtasks.exe 26->42         started        44 conhost.exe 26->44         started        46 powershell.exe 26->46         started        50 35 other processes 26->50 48 conhost.exe 30->48         started        signatures12 process13 process14 52 conhost.exe 42->52         started        54 ReAgentc.exe 44->54         started        56 conhost.exe 46->56         started        58 conhost.exe 50->58         started        60 ReAgentc.exe 50->60         started        62 conhost.exe 50->62         started        64 30 other processes 50->64
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/79712e68d88a6d2d87555f24f9dc767868289ce0e70000c14e3e72df1b4a58f9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/79712e68d88a6d2d87555f24f9dc767868289ce0e70000c14e3e72df1b4a58f9/
Threat name:
ByteCode-MSIL.Backdoor.Quasarrat
Create hunting rule
Status:
Malicious
First seen:
2025-03-22 04:41:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
47
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pfys42gyrjws3b2vl4sptxdwpbucrhha44aabqkohzzn6g2kld4q._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:office04 agilenet defense_evasion discovery execution spyware stealer themida trojan
Link:
https://tria.ge/reports/250322-ggcgjsywdv/
Behaviour
Delays execution with timeout.exe
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Browser Information Discovery
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Drops file in Windows directory
Drops file in System32 directory
Checks whether UAC is enabled
Checks BIOS information in registry
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Reads user/profile data of web browsers
Themida packer
Command and Scripting Interpreter: PowerShell
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
movies-concerning.gl.at.ply.gg:12712
Gathering data
Unpacked files
SH256 hash:
79712e68d88a6d2d87555f24f9dc767868289ce0e70000c14e3e72df1b4a58f9
MD5 hash:
818c5a007a2075f7c56eb69b75d12acb
SHA1 hash:
2f33d50e879a18ff744424855d6356bae8f2d5d9
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/76fffe2d-2255-45aa-a36b-94ebba93b2e4/
SH256 hash:
9365b6cee47eecc6eab2c6d138f0d5714c31ff1473143ce14ce874eb896f01b3
MD5 hash:
85410a49050c880d856c15b4c958d86d
SHA1 hash:
f520f25b5cd537b1060d8ca66f53bac745f8f8fa
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
MAL_BackNet_Nov18_1
Create hunting rule
INDICATOR_EXE_Packed_Fody
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_QuasarStealer
Create hunting rule
Link:
https://www.unpac.me/results/76fffe2d-2255-45aa-a36b-94ebba93b2e4/
SH256 hash:
d02da3d3909dc335bee98ffb284ce5413c84d349137c236715a9f898eba6fa42
MD5 hash:
95373b3cad383bc50fe84a2a598b5cfb
SHA1 hash:
e65e24821a2167656a2bc2dffbb1bd82cd08aeec
Detections:
INDICATOR_EXE_Packed_AgileDotNet
Create hunting rule
Link:
https://www.unpac.me/results/76fffe2d-2255-45aa-a36b-94ebba93b2e4/
Malware family:
DCRat
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/79712e68d88a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/79712e68d88a6d2d87555f24f9dc767868289ce0e70000c14e3e72df1b4a58f9

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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:Costura_Protobuf
Create hunting rule
Author:@bartblaze
Description:Identifies Costura and Protobuf in .NET assemblies, respectively for storing resources and (de)serialization. Seen together might indicate a suspect binary.
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_EXE_Packed_AgileDotNet
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Agile.NET / CliSecure
Rule name:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:INDICATOR_EXE_Packed_Themida
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Themida
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:MALWARE_Win_QuasarStealer
Create hunting rule
Author:ditekshen
Description:Detects Quasar infostealer
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
Create hunting rule
Description:Detects QuasarRAT malware
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: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_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: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:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

anyrun
any.run
https://app.any.run/tasks/8808c335-c0db-4fff-bbb1-bd11c8dad609

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 (HIGH_ENTROPY_VA)high

Comments