MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 181df1e408b4ab730be34936f8ab455ebefef2e56d969953227d16c123557d8d. 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 2 File information Comments

SHA256 hash: 181df1e408b4ab730be34936f8ab455ebefef2e56d969953227d16c123557d8d
SHA3-384 hash: 71c0db11a2aea4debccde3162125fe9933a345bb13a8a09c2862a2dd6c4dcb33651e24178a17ca1c15ccf1744eef6da4
SHA1 hash: 665942fd64084b5bbaa21ae87f585bae3054b593
MD5 hash: 87ab2725320934c368e85927116dcd23
humanhash: lactose-three-iowa-autumn
File name:install_mal017.msi
Download: download sample
Signature ValleyRAT
File size:9'248'768 bytes
First seen:2026-07-30 14:42:36 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 196608:Gfr5aBckL3Q52UiI/abgiWeS2+ZbpmguUeTsJlhtwUPdj5J1agAYXcyYoA8z:Kr5Y3L3e2UcbgixSZZ9wJArsUPdjx1XP
TLSH T1069633943D867371E953CB308486B82D7D257FCAB3664C1B7D9D3A105A32770A2FA34A
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://www.qnjr128.com/30load"

SilverFox
IOC (Domain hohfsx.net) (Domain bnqyz8.oss-cn-beijing.aliyuncs.com) (Domain upitem.oss-cn-hangzhou.aliyuncs.com) (Domain 26nn.oss-cn-hangzhou.aliyuncs.com)

Intelligence


File Origin
# of uploads :
1
# of downloads :
70
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context bankingtrojan CAB installer installer overlay packed packed persistence wix
Verdict:
Malicious
File Type:
msi
First seen:
2026-07-30T10:52:00Z UTC
Last seen:
2026-07-31T13:05:00Z UTC
Hits:
~10
Detections:
Trojan.Win32.Agent.sba Trojan-Banker.Win32.Emotet.gqex HEUR:Trojan.Win32.Convagent.gen HEUR:Trojan-Banker.Win32.Emotet.gen Trojan.Agent.HTTP.C&C Trojan.Win64.Kryplod.sb Trojan.Win32.Zapchast.bpbc Trojan.Win32.Zapchast.bpbb Trojan.Win32.Agent.sb HEUR:Trojan.Win32.DLLhijack.pef HackTool.Multi.AmsiETWPatch.sb not-a-virus:HEUR:RiskTool.Win32.EvadeAV.gen
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
CAB:COMPRESSION:LZX Executable Office Document PE (Portable Executable) PE File Layout
Threat name:
Win32.Spyware.Emotet
Status:
Malicious
First seen:
2026-07-30 14:43:31 UTC
File Type:
Binary (Archive)
Extracted files:
3
AV detection:
16 of 24 (66.67%)
Threat level:
  2/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
defense_evasion execution persistence privilege_escalation ransomware trojan
Behaviour
Checks SCSI registry key(s)
Modifies data under HKEY_USERS
Modifies registry class
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
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Event Triggered Execution: Installer Packages
Executes a command shell one-liner
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Adds Run key to start application
Badlisted process makes network request
Enumerates connected drives
Indicator Removal: Clear Persistence
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Command and Scripting Interpreter: PowerShell
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.
Rule name:Sus_CMD_Powershell_Usage
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 181df1e408b4ab730be34936f8ab455ebefef2e56d969953227d16c123557d8d

(this sample)

  
Delivery method
Distributed via web download

Comments