MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ba21984b242a9287a6bed28f738344cddf38921e3c4450b85587d320e1393409. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ba21984b242a9287a6bed28f738344cddf38921e3c4450b85587d320e1393409
SHA3-384 hash: 97ef16b260e1d1ade3cab489491b6a25ca189406046073d049af80c8787d44b636b482c425ab98e633c1799231357b7e
SHA1 hash: 01107d854768cbc4bd41d6b5495ae6dad1f74532
MD5 hash: 7dbc18ee698a20ebcb33cd1af081c471
humanhash: georgia-eighteen-xray-shade
File name:yzwnooooob.msi
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:12'464'128 bytes
First seen:2024-12-28 07:53:39 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:EEue3U7xCwxvQac1/ZC+wSwnPZbzL+uuIZYskTZ02SJ4AAHFnOXJiZF1QQ5RCKc5:fNJISwnPZXiuuI6Ft5TtHhhQATQ
TLSH T1C8C6331C6F5E5A1EC3C982FD48C5FAAE08985F78077871A13344BB6ED13B83AD1526D2
TrID 88.4% (.MST) Windows SDK Setup Transform script (61000/1/5)
11.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter zhuzhu0009
Tags:backdoor msi SilverFox ValleyRAT winos

Intelligence

File Origin
# of uploads :
1
# of downloads :
94
Origin country :
PL PL
Vendor Threat Intelligence
Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=676faea075fb913a1478dce7
Tags:
malware
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
installer packed packed
Link:
https://www.filescan.io/uploads/676fae9dd986a2005f8d93e1/reports/ba2973ca-dddf-45a7-86ce-0eae3ddf3074/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/ba21984b242a9287a6bed28f738344cddf38921e3c4450b85587d320e1393409
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/ba21984b242a9287a6bed28f738344cddf38921e3c4450b85587d320e1393409
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
Link:
https://www.joesandbox.com/analysis/1581563
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:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1581563 Sample: yzwnooooob.msi Startdate: 28/12/2024 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\MSIF3DA.tmp, PE32+ 6->15 dropped 11 msiexec.exe 2 6->11         started        process5 file6 17 C:\Program Files (x86)\Windows NT\hrsv.tac, PE32+ 11->17 dropped 23 Query firmware table information (likely to detect VMs) 11->23 25 Hides threads from debuggers 11->25 signatures7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ba21984b242a9287a6bed28f738344cddf38921e3c4450b85587d320e1393409/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xiqzqszefkjipjv62khxha2ezxptreq6hrcfbocvq7jsbyjzgqeq._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence privilege_escalation
Link:
https://tria.ge/reports/241228-jrjpqaxlfk/
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/078344da-62ff-4390-88be-5ad4074315c7
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/ba21984b242a9287a6bed28f738344cddf38921e3c4450b85587d320e1393409

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
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