MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79a32ee01de90bbdf0972e175eb0a2d0821f333828d19040bd79df119789e459. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments

SHA256 hash: 79a32ee01de90bbdf0972e175eb0a2d0821f333828d19040bd79df119789e459
SHA3-384 hash: 99b45469c9030a673b8576a8518cb030c4d23bf22995f9c1ff5747f81ce25b6fc97518595a64a6a7d0a72c415d56db3c
SHA1 hash: 4b3f795b8dce54c1965b88fcf5f1401349ef0f61
MD5 hash: 274e99abb115c8e6044dfc9d10c359f2
humanhash: green-seven-salami-oven
File name:79a32ee01de90bbdf0972e175eb0a2d0821f333828d19040bd79df119789e459.msi
Download: download sample
Signature ValleyRAT
File size:9'945'088 bytes
First seen:2025-01-01 07:34:10 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:GG8z3FLOg0uyodqLDDkBgyelXfxH6nSnVJJjL82KwZnGYQ4rYfhDLO7PedVd4Tz:GG8LFL+uyo0XDkyLlJxCwZn9Q9hoIVdu
TLSH T1BAA63308812EC29EEBEFA67F0C75996F4E49EE4355A4855E4BD83BCCA533723042F650
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 zhuzhu0009
Tags:backdoor msi SilverFox ValleyRAT winos

Intelligence


File Origin
# of uploads :
1
# of downloads :
102
Origin country :
JP JP
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
installer packed packed
Result
Verdict:
MALICIOUS
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:
60 / 100
Signature
Hides threads from debuggers
Multi AV Scanner detection for dropped file
PE file has nameless sections
Query firmware table information (likely to detect VMs)
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1582968 Sample: ij8Q2oKbXt.msi Startdate: 01/01/2025 Architecture: WINDOWS Score: 60 19 Multi AV Scanner detection for dropped file 2->19 21 PE file has nameless sections 2->21 6 msiexec.exe 75 29 2->6         started        9 msiexec.exe 5 2->9         started        process3 file4 15 C:\Windows\Installer\MSIA248.tmp, PE32+ 6->15 dropped 11 msiexec.exe 2 6->11         started        process5 file6 17 C:\Program Files (x86)\Windows NT\apo.b, PE32+ 11->17 dropped 23 Query firmware table information (likely to detect VMs) 11->23 25 Hides threads from debuggers 11->25 signatures7
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence privilege_escalation
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:
Suspicious
Tags:
n/a
YARA:
n/a
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:RansomPyShield_Antiransomware
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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