MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81d66c6ed1e60f646ac9a611fd80dcc82fb2de66690ae5d932f8f3aa42848127. 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 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81d66c6ed1e60f646ac9a611fd80dcc82fb2de66690ae5d932f8f3aa42848127
SHA3-384 hash: 6f2c5614c9f7f81951bd97273f152cc323a8d1386d602a28cf9c0337787ad851fee4e7c10cea5fe2d1fe28dd409adaab
SHA1 hash: d38eadc48287c1567545d65757214f679a3db8ed
MD5 hash: e5960dd24010007a871749c63c6c59fe
humanhash: arkansas-louisiana-lion-whiskey
File name:e5960dd24010007a871749c63c6c59fe.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:538'112 bytes
First seen:2025-02-28 07:40:16 UTC
Last seen:2025-02-28 08:31:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 43fa057470f51ada1d73df855c1c374e (1 x ValleyRAT)
ssdeep 12288:aVuUZF9B8WRediPEjnp7GXyNxoPlTzUT7TF:a3FLNRecPEjp7GXyNxoPlfUT
Threatray 1 similar samples on MalwareBazaar
TLSH T1A9B49D21B6B9C471C43311310DB5E765A2BDBBB00A264A9B73F47A2D3E305C3AB16D67
TrID 68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
12.5% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.4% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
dhash icon 0f13c1195971330e (4 x ValleyRAT)
Reporter abuse_ch
Tags:27-124-42-200 exe ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
27.124.42.200:6666

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
27.124.42.200:6666 https://threatfox.abuse.ch/ioc/1437802/

Intelligence

File Origin
# of uploads :
2
# of downloads :
452
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e5960dd24010007a871749c63c6c59fe.exe
Verdict:
Malicious activity
Analysis date:
2025-02-28 08:28:01 UTC
Tags:
loader payload silverfox backdoor valleyrat winos rat
Link:
https://app.any.run/tasks/ee4d8be3-8a62-49b9-ad71-e31cd97c5699

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.25795.25059.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c168c32dfba428b46f1246
Tags:
vmdetect emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Connection attempt
Sending an HTTP GET request
Creating a file in the Windows directory
Сreating synchronization primitives
Creating a process from a recently created file
Sending a custom TCP request
Creating a window
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-vm explorer fingerprint keylogger lolbin microsoft_visual_cc obfuscated
Link:
https://www.filescan.io/uploads/67c1686e3c5f644bd93c2b56/reports/caae5d65-78a0-4551-95d8-d1ae842ca4a4/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/81d66c6ed1e60f646ac9a611fd80dcc82fb2de66690ae5d932f8f3aa42848127
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/06516af0-6a70-4ceb-a590-310a7b05dd84
Result
Threat name:
GhostRat, ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1626345
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contain functionality to detect virtual machines
Contains functionality to capture and log keystrokes
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to inject code into remote processes
Contains functionality to inject threads in other processes
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Found malware configuration
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Uses known network protocols on non-standard ports
Yara detected GhostRat
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/81d66c6ed1e60f646ac9a611fd80dcc82fb2de66690ae5d932f8f3aa42848127
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/81d66c6ed1e60f646ac9a611fd80dcc82fb2de66690ae5d932f8f3aa42848127/
Threat name:
Win32.Backdoor.GhostRAT
Create hunting rule
Status:
Malicious
First seen:
2025-02-25 09:40:09 UTC
File Type:
PE (Exe)
Extracted files:
39
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhlgy3wr4yhwi2wjuyi73ag4zax3fxtgnefolwjs7dz2uqueqetq._file
Verdict:
malicious
Label(s):
winos
Create hunting rule
Similar samples:
81d66c6ed1e60f646ac9a611fd80dcc82fb2de66690ae5d932f8f3aa42848127
ValleyRAT
error
ValleyRAT
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery
Link:
https://tria.ge/reports/250228-jhsahawkz5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Checks computer location settings
Executes dropped EXE
Downloads MZ/PE file
Verdict:
Malicious
Tags:
processkiller driveby
YARA:
n/a
Link:
https://app.threat.zone/submission/223ba46f-db33-43c7-a9d7-04509e7f7d0c
Unpacked files
SH256 hash:
81d66c6ed1e60f646ac9a611fd80dcc82fb2de66690ae5d932f8f3aa42848127
MD5 hash:
e5960dd24010007a871749c63c6c59fe
SHA1 hash:
d38eadc48287c1567545d65757214f679a3db8ed
Link:
https://www.unpac.me/results/3e063630-03b5-46ab-85ec-d78a9dcf7107/
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/81d66c6ed1e6/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:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_peb_parsing
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Generic_Threat_4b0b73ce
Create hunting rule
Author:Elastic Security
Rule name:win_valley_rat_auto
Create hunting rule
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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_TRUST_INFORequires Elevated Execution (level:requireAdministrator)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
ole32.dll::CoFreeUnusedLibraries
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
SHELL32.dll::ShellExecuteW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WINHTTP.dll::WinHttpCloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetSystemDirectoryW
KERNEL32.dll::GetFileAttributesW
KERNEL32.dll::FindFirstFileW
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpConnect
WINHTTP.dll::WinHttpOpenRequest
WINHTTP.dll::WinHttpOpen
WINHTTP.dll::WinHttpReadData
WINHTTP.dll::WinHttpReceiveResponse
WINHTTP.dll::WinHttpSendRequest
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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