MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 81843ff92dcc91a79b8e8a708962b39ba37c5cd8f65d63ccbf6037b2220f7186. 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: 16
| SHA256 hash: | 81843ff92dcc91a79b8e8a708962b39ba37c5cd8f65d63ccbf6037b2220f7186 |
|---|---|
| SHA3-384 hash: | c362f75a367db41accebf107b13af50ed277372ffb9cf2b9c61644aa340ee24aa72bc28c873d0b844fa502a9301e9d7f |
| SHA1 hash: | cb3e08aaac3a6fa7034c911766b6082d10f4cc45 |
| MD5 hash: | 14d9032c085fd158aaba8aa6ccf0aa69 |
| humanhash: | berlin-connecticut-hotel-magnesium |
| File name: | 14D9032C085FD158AABA8AA6CCF0AA69.exe |
| Download: | download sample |
| Signature | ValleyRAT |
| File size: | 111'104 bytes |
| First seen: | 2025-07-26 17:40:34 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b8bf08fa843a9ec1ce10d80fbf550c26 (87 x ValleyRAT, 1 x Gh0stRAT) |
| ssdeep | 3072:UXFiAVA5v6if7FMwrrInnjpE6Ux68XEPKa:SFih5v1mwrr0Xt1y |
| Threatray | 19 similar samples on MalwareBazaar |
| TLSH | T123B37B2172E0C072C097253199F9EBB24A7EF93113B845CBB7E8167A5F603C16A7539B |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| Reporter |  abuse_ch |
| Tags: | exe RAT ValleyRAT |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| 156.224.19.149:669 | https://threatfox.abuse.ch/ioc/1560934/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
39
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
14D9032C085FD158AABA8AA6CCF0AA69.exe
Verdict:
Malicious activity
Analysis date:
2025-07-26 17:41:19 UTC
Tags:
silverfox backdoor valleyrat winos rat crypto-regex
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Suspicious
Score:
50%
Tags:
emotet spawn
Result
Verdict:
Malware
Maliciousness:
Behaviour
Connection attempt
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Сreating synchronization primitives
Creating a window
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc obfuscated
Verdict:
Malicious
Labled as:
Trojan.Farfli
Malware family:
Winos
Verdict:
Malicious
Result
Threat name:
ValleyRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Creates a thread in another existing process (thread injection)
Found evasive API chain (may stop execution after checking mutex)
Found malware configuration
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Sigma detected: Suspect Svchost Activity
Suricata IDS alerts for network traffic
Writes to foreign memory regions
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PE (Portable Executable) Win 32 Exe x86
Verdict:
Malicious
Threat:
Trojan.Win32.Inject
Threat name:
Win32.Trojan.FatalRAT
Status:
Malicious
First seen:
2025-07-24 12:43:00 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
22 of 23 (95.65%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
winos
Similar samples:
+ 9 additional samples on MalwareBazaar
Result
Malware family:
valleyrat_s2
Score:
10/10
Tags:
family:valleyrat_s2 discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Enumerates connected drives
Malware Config
C2 Extraction:
156.224.19.149:669
156.224.19.149:668
156.224.19.149:866
156.224.19.149:668
156.224.19.149:866
Verdict:
Malicious
Tags:
Win.Malware.Fragtor-10028386-0
YARA:
n/a
Unpacked files
SH256 hash:
81843ff92dcc91a79b8e8a708962b39ba37c5cd8f65d63ccbf6037b2220f7186
MD5 hash:
14d9032c085fd158aaba8aa6ccf0aa69
SHA1 hash:
cb3e08aaac3a6fa7034c911766b6082d10f4cc45
Detections:
win_valley_rat_auto
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | CAS_Malware_Hunting |
|---|---|
| Author: | Michael Reinprecht |
| Description: | DEMO CAS YARA Rules for sample2.exe |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| 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: | malware_shellcode_hash |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect shellcode api hash value |
| Rule name: | MD5_Constants |
|---|---|
| Author: | phoul (@phoul) |
| Description: | Look for MD5 constants |
| Rule name: | meth_peb_parsing |
|---|---|
| Author: | Willi Ballenthin |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
| Rule name: | ThreadControl__Context |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| 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.
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (HIGH_ENTROPY_VA) | high |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| MULTIMEDIA_API | Can Play Multimedia | WINMM.dll::timeGetTime |
| WIN32_PROCESS_API | Can Create Process and Threads | KERNEL32.dll::CreateProcessA KERNEL32.dll::OpenProcess KERNEL32.dll::VirtualAllocEx KERNEL32.dll::WriteProcessMemory KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThread |
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineW |
| WIN_BASE_EXEC_API | Can Execute other programs | KERNEL32.dll::WriteConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleWindow KERNEL32.dll::GetConsoleMode KERNEL32.dll::GetConsoleCP |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileW KERNEL32.dll::GetSystemDirectoryA KERNEL32.dll::GetFileAttributesA |
| WIN_REG_API | Can Manipulate Windows Registry | ADVAPI32.dll::RegCreateKeyW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW |
| WIN_SOCK_API | Uses Network to send and receive data | WS2_32.dll::WSACloseEvent WS2_32.dll::WSACreateEvent WS2_32.dll::WSAEnumNetworkEvents WS2_32.dll::WSAEventSelect WS2_32.dll::WSAIoctl WS2_32.dll::WSAResetEvent |
| WIN_USER_API | Performs GUI Actions | USER32.dll::PeekMessageW |
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