MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b20c4775ddd13ae28302dd31a4248abdf96b7e92cf70c6e02b0a534a2c76da8e. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b20c4775ddd13ae28302dd31a4248abdf96b7e92cf70c6e02b0a534a2c76da8e
SHA3-384 hash: 905fb4bf581ebf2a44f5322b553c4be2f14a84705e36f00b73a597a62834067c845a7a25baed3b976b66c5092d1d4717
SHA1 hash: d5d9839cd321018b4a0c1ac0670e195b9f3b2b96
MD5 hash: 30da0588a63368c86f2d98885ae33860
humanhash: hamper-ten-uniform-early
File name:Clash.Verge_2.5.1_x64-setup.msi
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:69'451'776 bytes
First seen:2026-06-23 15:19:53 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 1572864:FRIJx/xzKqEvlacMJp+mF9k2CEfPB4jCfmO/Ef/3owuf23Nhvxr47Xb:4x/xmqEdanp11Jf2jCfmO/Ef/3owbNhE
Threatray 802 similar samples on MalwareBazaar
TLSH T18FE73331B1767898E65F63BFA0A89FC88030BDE1B31BD5AB63783FA149B054651B1D43
TrID 80.0% (.MSI) Microsoft Windows Installer (454500/1/170)
10.7% (.MST) Windows SDK Setup Transform script (61000/1/5)
7.8% (.MSP) Windows Installer Patch (44509/10/5)
1.4% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter Ling
Tags:msi SilverFox ValleyRAT


Avatar
CNGaoLing
Clash.Verge_2.5.1_x64-setup.msi

The sample is retrieved from "hxxps://clash-cm[.]org[.]cn" -> "hxxps://iccoauvvv[.]oss-cn-hongkong[.]aliyuncs[.]com/Clash[.]Verge_2[.]5[.]1_x64-setup[.]zip"

SilverFox
IOC (IP 43.248.172.185:5178)

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
US US
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/789a00b3-121d-4b6d-bc50-4611831b5fdb/
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a3aa2a886bc95245bf8eeab
Tags:
shellcode virus blic
Verdict:
Malicious
Link:
https://www.hybrid-analysis.com/sample/b20c4775ddd13ae28302dd31a4248abdf96b7e92cf70c6e02b0a534a2c76da8e
Verdict:
Malicious
File Type:
msi
First seen:
2026-06-23T12:08:00Z UTC
Last seen:
2026-06-24T22:44:00Z UTC
Hits:
~10
Detections:
Trojan.Win64.Agent.sb Trojan.Win32.Inject.sb Trojan.Win32.Agent.sb HEUR:Trojan.Win64.SilverFox.gen Trojan.Win32.Shellcode.sb Trojan.Win32.Autorun.sb Trojan.OLE2.Agent.sb Trojan.Multi.Agent.au
Link:
https://opentip.kaspersky.com/b20c4775ddd13ae28302dd31a4248abdf96b7e92cf70c6e02b0a534a2c76da8e/results?tab=lookup
Score:
10%
Verdict:
Benign
File Type:
ARCHIVE
Link:
https://malprob.io/report/b20c4775ddd13ae28302dd31a4248abdf96b7e92cf70c6e02b0a534a2c76da8e
Gathering data
Verdict:
Malicious
Threat:
Family.DONUTLOADER
Link:
https://tip.neiki.dev/file/b20c4775ddd13ae28302dd31a4248abdf96b7e92cf70c6e02b0a534a2c76da8e
Threat name:
Win64.Trojan.Donut
Create hunting rule
Status:
Malicious
First seen:
2026-06-23 15:13:27 UTC
File Type:
Binary (Archive)
Extracted files:
425
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wigeo5o52e5ofayc3uy2ijekxx4ww7usz5ymnyblbjjuuldw3kha._file
Verdict:
malicious
Label(s):
donutloader
Create hunting rule
Similar samples:
3225a3ab257fe8ffb46149fb3642338e6e61bfd18a6bff5f4382557c9e4ea909
ValleyRAT
480c184e69a19d4f3bb595324d618eead8f6fcc5176f1ebc5e44ee1389472503
ValleyRAT
4ef56fe1c4c570f02e7248013ab4b44dcdfdeff54ec9792a3bfca7abedbff4b5
ValleyRAT
5d21ddaa89883041716417e15c840f6146c9d9d15f38ce97109aeafd8b12022e
ValleyRAT
eb481df33605bdb63257f7a2cb69e48643c0807247d22acb88608b405f292d8c
ValleyRAT
error
ValleyRAT
+ 792 additional samples on MalwareBazaar
Result
Malware family:
donutloader
Create hunting rule
Score:
  10/10
Tags:
family:donutloader discovery execution loader persistence privilege_escalation ransomware
Link:
https://tria.ge/reports/260623-sq83nady5r/
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of SetThreadContext
Badlisted process makes network request
Enumerates connected drives
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
Detects DonutLoader
Family: DonutLoader
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b20c4775ddd1/report/overview.html
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:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_MSI_LATAM_Banker_From_LatAm
Create hunting rule
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

ValleyRAT

Microsoft Software Installer (MSI) msi b20c4775ddd13ae28302dd31a4248abdf96b7e92cf70c6e02b0a534a2c76da8e

(this sample)

  
Delivery method
Distributed via web download

Comments