MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8811592a27243d69cef28007e65ffb08881f330440ca6b94793b323ef3d9b868. 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 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8811592a27243d69cef28007e65ffb08881f330440ca6b94793b323ef3d9b868
SHA3-384 hash: a8e48a322249158df4baa1f77bc7604909583d565fa7cffc4b4e1b832aeef4b2e35f089a0058620203b63603098c7b9d
SHA1 hash: fa78bc3c852f7b651b8b96abfd4f6e0bf01d02e1
MD5 hash: d982dcfa980479157b0ead8608959ee5
humanhash: rugby-washington-stream-purple
File name:Client.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'624'576 bytes
First seen:2025-11-23 00:01:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:9pL3MUa5RKS2eWBRwRR16zhHIPbcNK0KKm77yviUSQaZaOwI55l2S62r9lsGbQtJ:9pXa5O7wR2EgKKm77LrwCB6A
Threatray 296 similar samples on MalwareBazaar
TLSH T1D075F152B3F9821AE5BF5BB89C7316490B37F9029A3AC74E098C509D1EF33409E517A7
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 :
29
Origin country :
IE IE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Client.exe
Verdict:
Suspicious activity
Analysis date:
2025-11-23 06:50:08 UTC
Tags:
anti-evasion
Link:
https://app.any.run/tasks/90d65352-49b6-47a5-b5c3-bac0479c12dd

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/39601/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

Win.Malware.Bulz-9933026-0
Create hunting rule

Win.Malware.Generic-6623004-0
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=69225bca140de26f6c2c6030
Tags:
vmdetect quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Launching a process
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm anti-vm base64 cmd explorer fingerprint hacktool lolbin obfuscated packed privilege reconnaissance runonce update
Link:
https://www.filescan.io/uploads/692256a9eecb08e4aa45275d/reports/39c09641-1d21-467c-a131-8ebad49f8602/overview
Verdict:
Malicious
Labled as:
VirTool_MSIL_Aikaantivm_GG_MTB
Link:
https://www.hybrid-analysis.com/sample/8811592a27243d69cef28007e65ffb08881f330440ca6b94793b323ef3d9b868
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-27T05:48:00Z UTC
Last seen:
2025-10-28T21:32:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/8811592a27243d69cef28007e65ffb08881f330440ca6b94793b323ef3d9b868/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/11815386-7986-4d4a-86b2-e22267532820
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8811592a27243d69cef28007e65ffb08881f330440ca6b94793b323ef3d9b868
Verdict:
QuasarRat
YARA:
15 match(es)
Tags:
.Net Executable Fody/Costura Packer Html Malicious Managed .NET PDB Path PE (Portable Executable) PE File Layout QuasarRat RAT SOS: 0.16 SOS: 0.19 SOS: 0.20 SOS: 0.22 SOS: 0.23 SOS: 0.25 SOS: 0.26 SOS: 0.27 SOS: 0.29 SOS: 0.32 SOS: 0.34 SOS: 0.35 SOS: 0.61 Win 32 Exe x86
Link:
https://app.malva.re/file/d982dcfa980479157b0ead8608959ee5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8811592a27243d69cef28007e65ffb08881f330440ca6b94793b323ef3d9b868/
Threat name:
ByteCode-MSIL.Hacktool.Aikaantivm
Create hunting rule
Status:
Malicious
First seen:
2025-10-27 10:37:49 UTC
AV detection:
29 of 38 (76.32%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=raivskrheq6wttxsqad6mx73bceb6myeidfgxfdzhmzd546zxbua._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
146d6357f782fafac397aa48c098a4ace344131c1ab12b6eafe72a2c59c88814
QuasarRAT
1af2e11cbb60bee87efab50083b64d9051a8255c0b9143d9105703e5f2a2c588
QuasarRAT
511ace09e2e37545e0f12232fb3ad7da230f0c55ea803fa14ae84530257069b6
QuasarRAT
7e9868f4da3238a549866769de126d9ef902b19c4760701d8f883f54bf8961c0
QuasarRAT
b95360f091412669760e7a6d01981eb192cc1582cf6fdfe51bc25a6bb8edbe29
QuasarRAT
error
QuasarRAT
+ 286 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:lanoirebhop spyware trojan
Link:
https://tria.ge/reports/251123-aw8d7sgl9z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Checks for VirtualBox DLLs, possible anti-VM trick
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
10.0.2.15:7771
Verdict:
Malicious
Tags:
red_team_tool rat quasar_rat backdoor backnet Win.Malware.Generic-9883083-0
YARA:
HKTL_EXE_AlKhaser_Jul_01 MAL_QuasarRAT_May19_1 malware_windows_quasarrat MAL_BackNet_Nov18_1
Link:
https://app.threat.zone/submission/47c85373-4d4f-4b5b-a7f6-74e4df1908f2
Unpacked files
SH256 hash:
8811592a27243d69cef28007e65ffb08881f330440ca6b94793b323ef3d9b868
MD5 hash:
d982dcfa980479157b0ead8608959ee5
SHA1 hash:
fa78bc3c852f7b651b8b96abfd4f6e0bf01d02e1
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/f2a237ae-e6d7-4a97-92d7-bb4f2416ad3f/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8811592a2724/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/8811592a27243d69cef28007e65ffb08881f330440ca6b94793b323ef3d9b868

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_Dlls
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: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: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:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:INDICATOR_EXE_Packed_Fody
Create hunting rule
Author:ditekSHen
Description:Detects executables manipulated with Fody
Rule name:Indicator_MiniDumpWriteDump
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
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:MAL_BackNet_Nov18_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
Rule name:MAL_BackNet_Nov18_1_RID2D6D
Create hunting rule
Author:Florian Roth
Description:Detects BackNet samples
Reference:https://github.com/valsov/BackNet
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: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:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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)

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/39601/

Comments