MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a35cc836152c020d679269a3cb38000ad42f32d42d899ca36677032e46084eaf. 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: 5


Intelligence 5 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a35cc836152c020d679269a3cb38000ad42f32d42d899ca36677032e46084eaf
SHA3-384 hash: f66a410682ad92e5ba47300ce7174198875fbd7ca6695216a8156482c637286fd1d244f5401e4b9cf33c62de5181b21c
SHA1 hash: 852fedc0b4bd4ea8d8022d8681a33e728b915397
MD5 hash: 3fd48e31583485e0cbaf1ae906d79a39
humanhash: earth-single-massachusetts-moon
File name:安装包V64.51.msi
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:33'542'144 bytes
First seen:2025-01-22 06:04:56 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 786432:omu3kfe53khpxvKKLGxNczoZJ/iBc3h9vfpx6N/ZxtZ3kwVZIpBJW:SkYyKKLGxNczoJ1/vxxA/ZxtZUkZIp
TLSH T1EE77332CA5597727E497C0704212372972B37D916B805E42D13A7BE62B322B079BFFC9
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 :
80
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67908d34b5602ee8cdaf1c81
Tags:
malware
Result
Verdict:
UNKNOWN
Link:
https://labs.inquest.net/dfi/sha256/a35cc836152c020d679269a3cb38000ad42f32d42d899ca36677032e46084eaf
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/1596578
Signature
Hides threads from debuggers
Multi AV Scanner detection for submitted file
Query firmware table information (likely to detect VMs)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1596578 Sample: #U5b89#U88c5#U5305V64.51.msi Startdate: 22/01/2025 Architecture: WINDOWS Score: 56 19 Multi AV Scanner detection for submitted file 2->19 6 msiexec.exe 75 30 2->6         started        9 msiexec.exe 5 2->9         started        process3 file4 15 C:\Windows\Installer\MSI8B97.tmp, PE32+ 6->15 dropped 11 msiexec.exe 1 6->11         started        process5 file6 17 C:\Program Files (x86)\Windows NT\caq.dll, PE32+ 11->17 dropped 21 Query firmware table information (likely to detect VMs) 11->21 23 Hides threads from debuggers 11->23 signatures7
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=unomqnqvfqba2z4sngr4woaablkc6mwufwezzi3go4bs4rqij2xq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence privilege_escalation
Link:
https://tria.ge/reports/250122-gs7rtssmgj/
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
Link:
https://app.threat.zone/submission/54ab3198-4e18-454a-8fee-b79aedbc925f
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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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