MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 631ef6cc73396a7c2496e899760ec8451b06945e4e4a09b0dcdf2802cf6b09af. 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 2 File information Comments

SHA256 hash: 631ef6cc73396a7c2496e899760ec8451b06945e4e4a09b0dcdf2802cf6b09af
SHA3-384 hash: 192e6a3aac0a50d87455213bd4f77b2bdd1e29d50ac81758edfe5d4ea444e06736fcd0ea59ca536b2d208fa84e762ad8
SHA1 hash: e199e7a5d3f5fcc26a75c625041f5cae80a5a611
MD5 hash: 448ed8c571562ea704ae294e31ca21c3
humanhash: bulldog-early-jig-comet
File name:setup64v8.0.6.msi
Download: download sample
Signature ValleyRAT
File size:34'181'120 bytes
First seen:2025-01-18 03:28:36 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 786432:0mu3kfe53khpxvKKLGxNczoZJ/iBc3h9vfpx6N/ZxtZ3kwVZop:ukYyKKLGxNczoJ1/vxxA/ZxtZUkZop
TLSH T1D777333CA516B726E897C1304213762572B37DD06B801E46D52A7B962B323B079BFFD8
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 :
104
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Unknown
Threat level:
  10/10
Confidence:
100%
Tags:
installer
Result
Verdict:
UNKNOWN
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:
64 / 100
Signature
Hides threads from debuggers
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Behaviour
Behavior Graph:
Gathering data
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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