MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 634b4506c8b7f760bd5356bd228a5038f1aafd70311ce71f3bbf7cbdd2f94d4d. 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: 4


Intelligence 4 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 634b4506c8b7f760bd5356bd228a5038f1aafd70311ce71f3bbf7cbdd2f94d4d
SHA3-384 hash: d8aeabaed5abd50c0f656d7849c680db226090981ca97dc529f39a503820f9d4498467818591552309f4a490fa0bb117
SHA1 hash: eb7748eb4aec86c719c833eef2adc750f709c94e
MD5 hash: 82c8cef8462d0ee329dbae0ae1567161
humanhash: march-sierra-alaska-jupiter
File name:Setup64v2.5.8.msi
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:34'013'184 bytes
First seen:2025-02-05 02:34:17 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 786432:htTRhkn68rQvGEKsutUVzk+1ojKl6l/iCfh7KZetWYUSyrsX:htTTkB7E3uozFo+Yfh78eso
TLSH T17177330AB996AB3DE92ED630CA02F265B5363C1547198C92924878B59D377F370FC78C
TrID 88.4% (.MST) Windows SDK Setup Transform script (61000/1/5)
11.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter kafan_shengui
Tags:msi SilverFox ValleyRAT winos

Intelligence

File Origin
# of uploads :
1
# of downloads :
108
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67a2cefb51193558eb19692b
Tags:
n/a
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
installer obfuscated
Link:
https://www.filescan.io/uploads/67a2ce61190d34a1af08bbca/reports/d384387a-c5db-4905-a3e1-39ab1c6fbcfe/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/634b4506c8b7f760bd5356bd228a5038f1aafd70311ce71f3bbf7cbdd2f94d4d
Result
Verdict:
UNKNOWN
Link:
https://labs.inquest.net/dfi/sha256/634b4506c8b7f760bd5356bd228a5038f1aafd70311ce71f3bbf7cbdd2f94d4d
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:
evad
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1607075
Signature
Hides threads from debuggers
Multi AV Scanner detection for dropped file
Query firmware table information (likely to detect VMs)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1607075 Sample: Setup64v2.5.8.msi Startdate: 05/02/2025 Architecture: WINDOWS Score: 56 20 171.39.242.20.in-addr.arpa 2->20 22 Multi AV Scanner detection for dropped file 2->22 7 msiexec.exe 75 30 2->7         started        10 msiexec.exe 5 2->10         started        signatures3 process4 file5 16 C:\Windows\Installer\MSIA74.tmp, PE32+ 7->16 dropped 12 msiexec.exe 1 7->12         started        process6 file7 18 C:\Program Files (x86)\Windows NT\cab.dll, PE32+ 12->18 dropped 24 Query firmware table information (likely to detect VMs) 12->24 26 Hides threads from debuggers 12->26 signatures8
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mnfukbwiw73wbpktk26sfcsqhdy2v7lqgeooohz3x56l3uxzjvgq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence privilege_escalation
Link:
https://tria.ge/reports/250205-c25xdavncx/
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
Suspicious use of NtSetInformationThreadHideFromDebugger
Enumerates connected drives
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/63f4d742-26f2-4f3b-96c4-8261179bfe86
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/634b4506c8b7f760bd5356bd228a5038f1aafd70311ce71f3bbf7cbdd2f94d4d

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:NET
Create hunting rule
Author:malware-lu
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.

Comments