MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7e939ad9ea88f7d6a752d6ed512c6243cce8be49e1c1b187287b32b58f9de4fd. 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: 18


Intelligence 18 IOCs YARA 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 7e939ad9ea88f7d6a752d6ed512c6243cce8be49e1c1b187287b32b58f9de4fd
SHA3-384 hash: bc09c41c3deb749a4f664959b7051d31a7f7f11eaa03d3abd54813967c2b647fe43c5d5f8b17058ec55d6734b3210352
SHA1 hash: 6549141b944505e740cdc7bd1c3fbf78b0e06cde
MD5 hash: 39b24b31e285b544521a250cc7c7e67b
humanhash: victor-montana-sierra-three
File name:Client.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:3'266'048 bytes
First seen:2025-11-22 23:59:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'843 x AgentTesla, 19'775 x Formbook, 12'297 x SnakeKeylogger)
ssdeep 49152:vvIAd23law6wGPAllX3SSLNUpyINyqQBxVdoGdETHHB72eh2NT:vvZd23law6wGPAllX3bLNUpyXqc
Threatray 1'519 similar samples on MalwareBazaar
TLSH T10EE55A0437F85E33E56BD2B3D5B05022A3F1F82AF363EB1B519167BA1C53B5488426A7
TrID 58.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
13.2% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
8.4% (.EXE) Win64 Executable (generic) (10522/11/4)
5.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter Hexastrike
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
41
Origin country :
IE IE
Vendor Threat Intelligence
Detection:
QuasarStealer
Create hunting rule
Link:
https://www.capesandbox.com/analysis/39557/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Msilheracles-9900242-0
Create hunting rule

Win.Packed.Downeks-6898097-0
Create hunting rule

ditekSHen.MALWARE.Win.Trojan.QuasarStealer.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69225a694917b5d23db0b631
Tags:
infosteal autorun quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Launching a process
DNS request
Connection attempt
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 infostealer obfuscated quasarrat reconnaissance stealer
Link:
https://www.filescan.io/uploads/692255a1f96b58f0dc80601b/reports/51621eab-80cb-43d1-9e3d-80756a17c31b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/7e939ad9ea88f7d6a752d6ed512c6243cce8be49e1c1b187287b32b58f9de4fd
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-08T07:41:00Z UTC
Last seen:
2025-11-20T07:33:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/7e939ad9ea88f7d6a752d6ed512c6243cce8be49e1c1b187287b32b58f9de4fd/results?tab=lookup
Malware family:
Quasar RAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2ea72217-4724-40d2-95c3-95fdffaa5bb0
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7e939ad9ea88f7d6a752d6ed512c6243cce8be49e1c1b187287b32b58f9de4fd
Verdict:
inconclusive
YARA:
13 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/39b24b31e285b544521a250cc7c7e67b
Detection:
quasar
Create hunting rule
Link:
https://mwdb.cert.pl/sample/7e939ad9ea88f7d6a752d6ed512c6243cce8be49e1c1b187287b32b58f9de4fd/
Threat name:
ByteCode-MSIL.Backdoor.Quasar
Create hunting rule
Status:
Malicious
First seen:
2025-11-09 01:53:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=p2jzvwpkrd35nj2s23wvcldcipgorpsj4ha3dbzipmzlld454t6q._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
1888dad764c782fdb3d8cfce0916fd197e645231f3cdc28e4d45d1558a0935db
QuasarRAT
62e33e711af0f03f89102ab7d82d642e2981c164cce4f8300918ec0aea9a34ac
QuasarRAT
7e939ad9ea88f7d6a752d6ed512c6243cce8be49e1c1b187287b32b58f9de4fd
QuasarRAT
error
QuasarRAT
f00591384ec47004189f26bd3766220e991c70987e0c130331a32c38e3411584
QuasarRAT
f5e49e7ec748a0b4cfdecdddc5fdfaf9f5b7f38f73e962a4017b402ba8143d02
QuasarRAT
+ 1'509 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:pingping execution persistence spyware trojan
Link:
https://tria.ge/reports/251123-atpjbagl6x/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Executes dropped EXE
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
xoilaczzzfz.tv:4782
data.xoilaczzzfz.tv:4782
ddos.xoilaczzzfz.tv:4782
malware.xoilaczzzfz.tv:4782
Verdict:
Malicious
Tags:
rat quasar_rat stealer Win.Malware.Generic-9883083-0
YARA:
MAL_QuasarRAT_May19_1 malware_windows_quasarrat win_quasar_rat_client MALWARE_Win_Quasarstealer
Link:
https://app.threat.zone/submission/6a3ff9ad-4d70-4386-a8ee-0be2b9d1c870
Unpacked files
SH256 hash:
7e939ad9ea88f7d6a752d6ed512c6243cce8be49e1c1b187287b32b58f9de4fd
MD5 hash:
39b24b31e285b544521a250cc7c7e67b
SHA1 hash:
6549141b944505e740cdc7bd1c3fbf78b0e06cde
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/5ccdbbdd-cdf9-43dc-8552-d2f0cc170a8d/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7e939ad9ea88/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/7e939ad9ea88f7d6a752d6ed512c6243cce8be49e1c1b187287b32b58f9de4fd

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:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
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_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:RC6_Constants
Create hunting rule
Author:chort (@chort0)
Description:Look for RC6 magic constants in binary
Reference:https://twitter.com/mikko/status/417620511397400576
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:SHA512_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA384/SHA512 constants
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Windows_Generic_Threat_803feff4
Create hunting rule
Author:Elastic Security
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.

Cape
Cape
https://www.capesandbox.com/analysis/39557/

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