MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64c1129ca7275f7314d04103c36d6193a1c1720a529dac1fc305872a37129d51. 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 24 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 64c1129ca7275f7314d04103c36d6193a1c1720a529dac1fc305872a37129d51
SHA3-384 hash: 854dc271f892f08aa56b2ba3a81d972319d3f0469a7b691c53b7e628819878af5f42fdc5caf28208f222648b20c40cf0
SHA1 hash: f9fce554ad2db3e36cc1054842c53b75b81b8ec3
MD5 hash: 546e0bd5388ef0691232635644ac6929
humanhash: may-ten-indigo-mango
File name:vixen.exe
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:1'868'800 bytes
First seen:2025-08-19 08:13:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:JRQClfHyclOYM5NKij8QzO4lcHNF0tXZWLuyWfNlHoMyVjIi:JRQ6SGOGqnXpyWADj
Threatray 125 similar samples on MalwareBazaar
TLSH T1F8850250B7E88506E1BF1BB9E8B216494B73F553E936D74F0D88906C1EA7780DE903A3
TrID 62.2% (.RLL) Microsoft Resource Library (x86) (177572/6/26)
25.6% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
3.6% (.EXE) Win64 Executable (generic) (10522/11/4)
2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
Reporter burger
Tags:exe QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
54
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
vixen.exe
Verdict:
Malicious activity
Analysis date:
2025-08-19 08:12:55 UTC
Tags:
crypto-regex
Link:
https://app.any.run/tasks/34d5d2a6-9f45-42c0-8f88-61a7521dfe7c

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/22121/
Detection(s):
Win.Malware.Generic-9883083-0
Create hunting rule

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

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

Win.Malware.Generic-6623004-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68a43241c2f5296a1a284532
Tags:
vmdetect quasar emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Setting a keyboard event handler
DNS request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm anti-vm base64 cmd cscript explorer fingerprint hacktool lolbin mshta obfuscated packed privilege reconnaissance runonce schtasks threat update
Link:
https://www.filescan.io/uploads/68a4329e004f5721cb8184f6/reports/af217ba8-b77a-42b0-a112-a61b1dbc233d/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/64c1129ca7275f7314d04103c36d6193a1c1720a529dac1fc305872a37129d51
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ee04ceed-f851-40a5-9136-5d97ea16cc27
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1759988
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Contains functionality to disable the Task Manager (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Opens the same file many times (likely Sandbox evasion)
Sample uses string decryption to hide its real strings
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/64c1129ca7275f7314d04103c36d6193a1c1720a529dac1fc305872a37129d51
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/64c1129ca7275f7314d04103c36d6193a1c1720a529dac1fc305872a37129d51/
Verdict:
Malicious
Threat:
Family.QUASAR
Link:
https://tip.neiki.dev/file/64c1129ca7275f7314d04103c36d6193a1c1720a529dac1fc305872a37129d51
Threat name:
ByteCode-MSIL.Hacktool.Aikaantivm
Create hunting rule
Status:
Malicious
First seen:
2025-08-19 08:12:56 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
32 of 38 (84.21%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mtarfhfhe5pxgfgqieb4g3lbsoq4c4qkkko2yh6dawdsunystviq._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
288d31c7d357a129cf21143a30062144d41c899f44c0515b815caf31c4be14b1
QuasarRAT
5bf621e8d7c8590e3a2a5bb9779b5458b28f85b8887076b4a4885d1ee3e2c7f0
QuasarRAT
62e0383b93de31204574ab52d136c58469e710ce38d2d7f061438ab5abbd76f7
QuasarRAT
64c1129ca7275f7314d04103c36d6193a1c1720a529dac1fc305872a37129d51
QuasarRAT
97ac7f267466d0546e1655f199aadde77aa0bf94d63d3b9efb086ed6c3b7b7da
QuasarRAT
error
QuasarRAT
fefcf51745f418e4d6d8d4a62dd2bf723ab2bb21c5965523ecd0e670eec1f9aa
QuasarRAT
+ 115 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar botnet:vixen spyware trojan
Link:
https://tria.ge/reports/250819-j5hpkshr4y/
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Quasar RAT
Quasar family
Quasar payload
Malware Config
C2 Extraction:
kecfcnyn-28082.portmap.host:28082
Verdict:
Malicious
Tags:
red_team_tool backdoor backnet rat quasar_rat Win.Malware.Generic-9883083-0
YARA:
HKTL_EXE_AlKhaser_Jul_01 MAL_BackNet_Nov18_1 MAL_QuasarRAT_May19_1 malware_windows_quasarrat
Link:
https://app.threat.zone/submission/a13c37a0-e1a9-46a5-aab5-263e7c635e1d
Unpacked files
SH256 hash:
64c1129ca7275f7314d04103c36d6193a1c1720a529dac1fc305872a37129d51
MD5 hash:
546e0bd5388ef0691232635644ac6929
SHA1 hash:
f9fce554ad2db3e36cc1054842c53b75b81b8ec3
Detections:
QuasarRAT
Create hunting rule
Link:
https://www.unpac.me/results/15bc9150-dbec-4f7e-af5e-feec6553aa74/
Malware family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/64c1129ca727/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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: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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
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
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: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)
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)

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/22121/

Comments