MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fdaef1df61f8862e1007e99219de5dafe57771d8e0b887e11bbcfa86ab452ecc. 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: 14


Intelligence 14 IOCs 1 YARA 12 File information Comments

SHA256 hash: fdaef1df61f8862e1007e99219de5dafe57771d8e0b887e11bbcfa86ab452ecc
SHA3-384 hash: 9b15bd01a223f5e58507d8e43fb627cc6d01bd423b0175a275ebafaafa344ef117545d4ae2629ecd990e8788436d3c92
SHA1 hash: 9100e55a3d28a30de39c2af8f8068ce73dc972b1
MD5 hash: 93ae8fb1caa98dc0c7b909335142e34a
humanhash: four-happy-angel-sweet
File name:Hr.msi
Download: download sample
Signature ValleyRAT
File size:2'686'976 bytes
First seen:2025-12-26 01:50:08 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 49152:ufItohlj9szAlopTyWD5L6D5jkakEv53rB3PfhPD0POjOQP1ANZoJLCN:FoSTy8wkynhugqNZK
TLSH T190C5CF21B287C036D16E0177E968EE5E1978BE730B3145D7B7E83D6E49B08C29279B07
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 abuse_ch
Tags:msi RAT ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
178.249.208.233:553

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
178.249.208.233:553 https://threatfox.abuse.ch/ioc/1686676/

Intelligence


File Origin
# of uploads :
1
# of downloads :
87
Origin country :
NL NL
Vendor Threat Intelligence
Malware configuration found for:
MSI
Details
MSI
an embedded setup program or component
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug base64 cmd expired-cert fingerprint installer lolbin msiexec packed short-lived-cert wix
Verdict:
Malicious
File Type:
msi
First seen:
2025-12-25T22:36:00Z UTC
Last seen:
2025-12-25T23:07:00Z UTC
Hits:
~100
Detections:
Backdoor.Win32.Agent.sb Backdoor.Win32.Agent.myxbzc
Result
Threat name:
ValleyRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to capture and log keystrokes
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files to the user root directory
Found evasive API chain (may stop execution after checking mutex)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Sigma detected: Execution from Suspicious Folder
Sigma detected: Suspicious Program Location with Network Connections
Suricata IDS alerts for network traffic
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Yara detected ValleyRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1839594 Sample: Hr.msi Startdate: 26/12/2025 Architecture: WINDOWS Score: 100 37 yandi9988.com 2->37 47 Suricata IDS alerts for network traffic 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected ValleyRAT 2->51 53 3 other signatures 2->53 7 msiexec.exe 14 38 2->7         started        11 msiexec.exe 4 2->11         started        13 steam.exe 1 2->13         started        15 OpenWith.exe 1 14 2->15         started        signatures3 process4 file5 27 C:\Windows\Installer\MSI39AA.tmp, PE32 7->27 dropped 29 C:\Users\Public\tpsvcBase.dll, PE32 7->29 dropped 31 C:\Users\Public\steam.exe, PE32 7->31 dropped 33 7 other files (none is malicious) 7->33 dropped 55 Drops executables to the windows directory (C:\Windows) and starts them 7->55 17 steam.exe 1 7->17         started        21 msiexec.exe 2 7->21         started        23 msiexec.exe 7->23         started        25 MSI39AA.tmp 4 17 7->25         started        57 Drops PE files to the user root directory 11->57 signatures6 process7 dnsIp8 35 yandi9988.com 178.249.208.233, 49717, 49723, 49725 CZTTNET-ASCZ Czech Republic 17->35 39 Found evasive API chain (may stop execution after checking mutex) 17->39 41 Contains functionality to capture and log keystrokes 17->41 43 Tries to detect virtualization through RDTSC time measurements 17->43 45 Unusual module load detection (module proxying) 17->45 signatures9
Verdict:
inconclusive
YARA:
6 match(es)
Tags:
CAB:COMPRESSION:MSZIP Executable Office Document PDB Path PE (Portable Executable) PE File Layout SVG
Threat name:
Win32.Trojan.Suschil
Status:
Malicious
First seen:
2025-12-26 01:33:55 UTC
File Type:
Binary (Archive)
Extracted files:
85
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
valleyrat
Similar samples:
Result
Malware family:
valleyrat_s2
Score:
  10/10
Tags:
family:valleyrat_s2 backdoor discovery persistence privilege_escalation ransomware
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 Volume Shadow Copy service COM API
Enumerates physical storage devices
Event Triggered Execution: Installer Packages
System Location Discovery: System Language Discovery
Drops file in Windows directory
Enumerates connected drives
Executes dropped EXE
Loads dropped DLL
Detects ValleyRAT payload
ValleyRat
Valleyrat_s2 family
Malware family:
ValleyRAT
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Detect_MSI_LATAM_Banker_From_LatAm
Rule name:GenericGh0st
Author:Still
Rule name:Gh0stKCP
Author:Netresec
Description:Detects HP-Socket ARQ and KCP implementations, which are used in Gh0stKCP. Forked from @stvemillertime's KCP catchall rule.
Reference:https://netresec.com/?b=259a5af
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Indicator_MiniDumpWriteDump
Author:Obscurity Labs LLC
Description:Detects PE files and PowerShell scripts that use MiniDumpWriteDump either through direct imports or string references
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:ValleyRAT
Author:NDA0E
Description:Detects ValleyRAT
Rule name:Windows_Generic_Threat_4b0b73ce
Author:Elastic Security
Rule name:Windows_Trojan_Winos_464b8a2e
Author:Elastic Security
Rule name:win_valley_rat_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.valley_rat.

File information


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

Comments