MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422. 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: 19


Intelligence 19 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422
SHA3-384 hash: 6a2e6261556855ba66115aa264a46e7fe013ec5fab61ef73964f6bebc0b97e03ec64f2bdc14001664013242b3af15fd2
SHA1 hash: 4223ff7e3077270891d03b06498fd3ad6aefb0cc
MD5 hash: d2e366fcb0c9d31bb53bcf7cfffb2b9b
humanhash: fourteen-ack-saturn-mobile
File name:file
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:2'032'640 bytes
First seen:2025-10-20 04:04:24 UTC
Last seen:2025-10-21 04:05:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'646 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 49152:GM83d1O5RtVbBUflo3UDhfEC3lWmoBqP3NI1lyDXYO3b:U3/0VbCE8W5cOlyDXXb
Threatray 242 similar samples on MalwareBazaar
TLSH T1059533743090409AD31FE870769AF98D276AED474079363703B44DAF22C72BDAB95D36
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter Bitsight
Tags:dropped-by-amadey exe QuasarRAT


Avatar
Bitsight
url: http://178.16.55.189/files/1781548144/YrsGDtx.exe

Intelligence

File Origin
# of uploads :
10
# of downloads :
88
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422.bin.exe
Verdict:
Malicious activity
Analysis date:
2025-10-20 00:15:10 UTC
Tags:
evasion auto-startup anti-evasion xworm
Link:
https://app.any.run/tasks/94a8e12b-287b-4e06-b011-5b96d15bacbf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
XWorm
Create hunting rule
Link:
https://www.capesandbox.com/analysis/33364/
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68f5b4d76dc4a08515e3577f
Tags:
vmdetect asyncrat quasar
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Creating a window
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending an HTTP GET request
Creating a process with a hidden window
Sending a custom TCP request
Launching a process
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
evasive obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/68f5b5231384670fbd573171/reports/87195d2d-6c41-4667-84e4-de0e2af92768/overview
Verdict:
Malicious
Labled as:
MSIL.Cassiopeia.Generic
Link:
https://www.hybrid-analysis.com/sample/b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-19T16:01:00Z UTC
Last seen:
2025-10-20T10:13:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Generic Trojan.MSIL.Quasar.fea HEUR:Trojan.Win32.Generic HEUR:Trojan.MSIL.APosT.gen HEUR:Backdoor.MSIL.XWorm.gen Trojan.Win32.Agent.sb Backdoor.MSIL.XWorm.b Backdoor.MSIL.XWorm.a Trojan-PSW.MSIL.Agent.sb Trojan.MSIL.Quasar.a Trojan-PSW.Win32.Stealer.sb Trojan.MSIL.DOTHETUK.sb Trojan.MSIL.Quasar.feb Backdoor.Agent.TCP.C&C HEUR:Trojan-Banker.MSIL.ClipBanker.gen HEUR:Backdoor.MSIL.XClient.b Backdoor.MSIL.Crysan.d VHO:Trojan.MSIL.Cryptos.gen Trojan.Win32.Vimditator.sb PDM:Trojan.Win32.Tasker.cust
Link:
https://opentip.kaspersky.com/b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422/results?tab=lookup
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bf1932eb-10a0-4dad-b76c-cb40cda5af26
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422
Verdict:
inconclusive
YARA:
11 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.18 Win 32 Exe x86
Link:
https://app.malva.re/file/d2e366fcb0c9d31bb53bcf7cfffb2b9b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422/
Verdict:
Malicious
Threat:
Family.XWORM
Link:
https://tip.neiki.dev/file/b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422
Threat name:
ByteCode-MSIL.Trojan.Cassiopeia
Create hunting rule
Status:
Malicious
First seen:
2025-10-19 19:06:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wr24ytnk3mdxw5oq2wje4nghl6qxtyl3hcq4xubwnizjb3l2yqra._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
quasarrat
Create hunting rule
Similar samples:
182272eef867fc6f3bcb4dfd68e7e9d27098a68f8f05dd45c12bb000537ea2bd
QuasarRAT
189a7249bba180dbbfb0ce69e4e126795c0156557c3d5e3cff809e3cf2f2d3a7
QuasarRAT
39b1d4fda6765788deca2d8d86ec8d31fa9c0cc207eba14f205c1237033445f1
QuasarRAT
43ceae1fc8f4e94ef2b73ad8555a5182588cf924ea042baebab1a3805e1cdaed
QuasarRAT
b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422
QuasarRAT
ea90d10a0f856d00da2e68829e7c87e04f0d4834a05405cdbda1455c05f7de0f
QuasarRAT
error
QuasarRAT
+ 232 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:quasar family:xworm execution persistence rat spyware trojan
Link:
https://tria.ge/reports/251020-enfrfa1rcy/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
Checks for VirtualBox DLLs, possible anti-VM trick
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Drops startup file
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Quasar RAT
Quasar family
Quasar payload
Xworm
Xworm family
Malware Config
C2 Extraction:
uchiwa5.duckdns.org:8887
Verdict:
Malicious
Tags:
External_IP_Lookup
YARA:
n/a
Link:
https://app.threat.zone/submission/91c66c74-0990-44dc-8ab2-39551a0de755
Unpacked files
SH256 hash:
b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422
MD5 hash:
d2e366fcb0c9d31bb53bcf7cfffb2b9b
SHA1 hash:
4223ff7e3077270891d03b06498fd3ad6aefb0cc
Link:
https://www.unpac.me/results/81c89803-877d-475e-990d-39ca80a10142/
SH256 hash:
686f4efa423dd3ea3884ec8d71c54266532a22e81f7874819bf3cf6fa2fcd546
MD5 hash:
9e74d013cf7315d6b202da60bbc5df70
SHA1 hash:
245fffd402d36ecb294a8aa6de721f6fe3a6c24d
Detections:
win_xworm_w0
Create hunting rule
XWorm
Create hunting rule
win_xworm_bytestring
Create hunting rule
win_mal_XWorm
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
MALWARE_Win_AsyncRAT
Create hunting rule
MALWARE_Win_XWorm
Create hunting rule
Link:
https://www.unpac.me/results/81c89803-877d-475e-990d-39ca80a10142/
SH256 hash:
792569c65020dfc3644e31f55aba31078250e70dca3d7713416479be4f25c48a
MD5 hash:
cd36c5fcbd4335ea8f4d586b2d13a559
SHA1 hash:
6669a01660da6436713fb6e3bc9fb32593bca1d4
Detections:
SUSP_NET_Large_Static_Array_In_Small_File_Jan24
Create hunting rule
HKTL_NET_GUID_Quasar
Create hunting rule
Link:
https://www.unpac.me/results/81c89803-877d-475e-990d-39ca80a10142/
Parent samples :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 family:
QuasarRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b475cc4daadb/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/b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422

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:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

QuasarRAT

Executable exe b475cc4daadb077b75d0d5924e34c75fa179e17b38a1cbd0366a3290ed7ac422

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/33364/
  
URLhaus
https://urlhaus.abuse.ch/url/3681997/

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