MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 637cddc88e13207eb5459a0107c77195b934d52d4bc1e62a71ca810554936b61. 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


ValleyRAT


Vendor detections: 8


Intelligence 8 IOCs YARA 1 File information Comments
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SHA256 hash: 637cddc88e13207eb5459a0107c77195b934d52d4bc1e62a71ca810554936b61
SHA3-384 hash: 274cd116d170b9f89052d2fccd6dd14937288eac8a23f383d9ce45428acc942bfb3e57c2e90cb862825edd203b15c02a
SHA1 hash: b7c48da81991c66a24555d69e23336222e656e26
MD5 hash: 49b86b210af0c41b0d82a5c3a998cbcc
humanhash: sixteen-freddie-diet-west
File name:T1安装包2.0.1.msi
Download: download sample
Signature ValleyRAT
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File size:8'790'016 bytes
First seen:2025-01-06 08:26:23 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:uWRLl382B6TCe30s0TJnHPfctFaEfVr7yBh1LRTKflO:uQLN8W6TCe30s0tvfcy67yBHLgfQ
TLSH T19A963321B8EF86F7E2356B354DA171924043AE702BB28446AB457F0C047DA70DBB7E6D
TrID 53.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
39.2% (.MSP) Windows Installer Patch (44509/10/5)
7.0% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter kafan_shengui
Tags:msi SilverFox ValleyRAT winos

Intelligence

File Origin
# of uploads :
1
# of downloads :
100
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Other.Malware-gen.27476.1849.UNOFFICIAL
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Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=677b94f2ffdcee13ec842974
Tags:
shellcode
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/637cddc88e13207eb5459a0107c77195b934d52d4bc1e62a71ca810554936b61
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
60 / 100
Link:
https://www.joesandbox.com/analysis/1584710
Signature
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file has nameless sections
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1584710 Sample: T1#U5b89#U88c5#U53052.0.1.msi Startdate: 06/01/2025 Architecture: WINDOWS Score: 60 15 Multi AV Scanner detection for dropped file 2->15 17 Multi AV Scanner detection for submitted file 2->17 19 PE file has nameless sections 2->19 6 msiexec.exe 75 29 2->6         started        9 msiexec.exe 5 2->9         started        process3 file4 13 C:\Windows\Installer\MSI9774.tmp, PE32+ 6->13 dropped 11 msiexec.exe 6->11         started        process5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/637cddc88e13207eb5459a0107c77195b934d52d4bc1e62a71ca810554936b61/
Threat name:
Win64.Trojan.Generic
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Status:
Suspicious
First seen:
2025-01-06 08:27:08 UTC
File Type:
Binary (Archive)
Extracted files:
2
AV detection:
11 of 38 (28.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mn6n3seocmqh5nkftiaqpr3rsw4tjvjnjpa6mktrzkaqkvetnnqq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence privilege_escalation
Link:
https://tria.ge/reports/250106-kceynatpgl/
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Event Triggered Execution: Installer Packages
Drops file in Program Files directory
Drops file in Windows directory
Loads dropped DLL
Enumerates connected drives
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4e3c7df4-4d84-4790-8ab4-f0d02c064bf1
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/637cddc88e13207eb5459a0107c77195b934d52d4bc1e62a71ca810554936b61

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:Sus_Obf_Enc_Spoof_Hide_PE
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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.

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