MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 21f16d6a573b281755a1492386bb555271011bf434a03773f5ddbf1377ff047e. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 21f16d6a573b281755a1492386bb555271011bf434a03773f5ddbf1377ff047e
SHA3-384 hash: 23dc45eaf162b8630d77661790dd62cc7d7b8c40f28c8bd0742c77a2484dc97cdb88205f796473ab084c6ef0c3a45386
SHA1 hash: e23704e928a97d006691c7955e8fa3f871bfdc5e
MD5 hash: d77510e19175d9d6e3b70bee74f68f93
humanhash: mars-one-freddie-lamp
File name:installer64v8.2.6.msi
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:8'159'232 bytes
First seen:2024-12-29 05:51:01 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:cbx1rCevv9FOSA5ZvUg5g+KQE9319vExJXpNm:E59gSKZsVHavXm
TLSH T1CA86013659B7B0BCF693D6B54AB78773A437339117261CBF00AAE3701632A104B56A73
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 :
101
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
MiscreantPunch.SingleXOR.EXE.19.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6770e34a1bb06b8884792737
Tags:
obfuscated sage
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/21f16d6a573b281755a1492386bb555271011bf434a03773f5ddbf1377ff047e
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/21f16d6a573b281755a1492386bb555271011bf434a03773f5ddbf1377ff047e
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:
68 / 100
Link:
https://www.joesandbox.com/analysis/1581856
Signature
Hides threads from debuggers
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Query firmware table information (likely to detect VMs)
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/21f16d6a573b281755a1492386bb555271011bf434a03773f5ddbf1377ff047e/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ehyw22sxhmubovnbjeryno2vkjyqcg7ugsqdo47v3w7rg577ar7a._file
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence privilege_escalation
Link:
https://tria.ge/reports/241229-gj6heavjak/
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/1e060311-5d05-4f92-bde7-f4b1e5de9220
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/21f16d6a573b281755a1492386bb555271011bf434a03773f5ddbf1377ff047e

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:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Check for Suspicious String and Import combination that Ransomware mostly abuse(can create FP)
Rule name:SUSP_XORed_MSDOS_Stub_Message
Create hunting rule
Author:Florian Roth
Description:Detects suspicious XORed MSDOS stub message
Reference:https://yara.readthedocs.io/en/latest/writingrules.html#xor-strings
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