MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dc745c186d00780cc85dd82adf4186441935ebc6547e375d778eaffb5dbe9305. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments

SHA256 hash: dc745c186d00780cc85dd82adf4186441935ebc6547e375d778eaffb5dbe9305
SHA3-384 hash: 82ec93a16c389be3889ae8564f0bdcfeef054c9d4062207c5fbca6cbcb308fdcbebf525e7e48c97ca95043842f8e6090
SHA1 hash: fa6bcae7978bc960c587fb2682fa5ad156962e0a
MD5 hash: 41149b65e88f1807a83269dc1535f6ed
humanhash: william-eight-failed-table
File name:softinst.873360017.msi
Download: download sample
Signature ValleyRAT
File size:8'069'120 bytes
First seen:2026-07-21 02:16:36 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:EK+X5nrYVBbqyTSA2EgREpbF1l3MkXloeNuH2iPupiRrey:0pnrYTqyuA28nDloeYWm+3y
TLSH T18F8633E4BC8A2331C1ABD3B19646357DB02C7FE1BFA78C437AE03B281E726169075655
TrID 88.4% (.MST) Windows SDK Setup Transform script (61000/1/5)
11.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter Ling
Tags:msi SilverFox ValleyRAT


Avatar
CNGaoLing
The sample is retrieved from "https://shimo-wd.com.cn" / "https://pc-shiimo.com.cn" -> "https://www.whur1584.com/20soft"

SilverFox
IOC (Domain hohfsx.net) (Domain s18yun.oss-cn-beijing.aliyuncs.com) (Domain 26nn.oss-cn-hangzhou.aliyuncs.com)

Intelligence


File Origin
# of uploads :
1
# of downloads :
135
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context CAB installer installer magniber mimikatz overlay packed packed persistence ransomware stealer wix
Verdict:
Malicious
File Type:
msi
First seen:
2026-07-20T22:46:00Z UTC
Last seen:
2026-07-22T10:36:00Z UTC
Hits:
~10
Detections:
HackTool.Multi.AmsiETWPatch.sb Trojan-Banker.Win32.Emotet.gpsg Trojan.Win32.Agent.sba HEUR:Trojan.Win32.DLLhijack.pef HEUR:Trojan.Win32.Convagent.gen HEUR:HackTool.OLE2.AmsiETWPatch.gen HEUR:Trojan-Banker.Win32.Emotet.gen
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
CAB:COMPRESSION:LZX Executable Office Document PE (Portable Executable) PE File Layout
Threat name:
Win64.Trojan.Malgent
Status:
Malicious
First seen:
2026-07-21 02:17:54 UTC
File Type:
Binary (Archive)
Extracted files:
3
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion discovery execution exploit persistence privilege_escalation ransomware trojan
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Modifies Control Panel
Modifies data under HKEY_USERS
Modifies registry class
Runs net.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Event Triggered Execution: Installer Packages
Event Triggered Execution: Screensaver
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Enumerates connected drives
Indicator Removal: Clear Persistence
Adds Run key to start application
Badlisted process makes network request
Checks computer location settings
Disables service(s)
Executes dropped EXE
Loads dropped DLL
Modifies file permissions
Command and Scripting Interpreter: PowerShell
Drops file in Drivers directory
Modifies RDP port number used by Windows
Possible privilege escalation attempt
UAC bypass
Windows security bypass
Malware family:
CobaltStrike
Verdict:
Malicious
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:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

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 dc745c186d00780cc85dd82adf4186441935ebc6547e375d778eaffb5dbe9305

(this sample)

  
Delivery method
Distributed via web download

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