MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f8caaee0056f565ff196509cec7c15e804b5a3349e0f8da20e93e889939e5cf. 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: 17


Intelligence 17 IOCs 1 YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2f8caaee0056f565ff196509cec7c15e804b5a3349e0f8da20e93e889939e5cf
SHA3-384 hash: 68e2e12ac3ae9d3fa8d485277f430bc3238fb1c461f2f3004b408f505c6ef9744e367d10f433c5f88335a96d52a1dc11
SHA1 hash: df82923fed249f542675b0edfc3e80a5f2e9c442
MD5 hash: 38c5b55526d9f6e258ed2ed6b20e166d
humanhash: carolina-burger-cold-william
File name:38c5b55526d9f6e258ed2ed6b20e166d.exe
Download: download sample
Signature ValleyRAT
Create hunting rule
File size:385'024 bytes
First seen:2025-05-12 17:45:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7381bfdd301b4a54762432f13a9b5f13 (3 x ValleyRAT)
ssdeep 6144:AHdhPDjUVFPeDADETZZX+t4Z0dS7jNt5z1G1xQol0XAD35m0ampO83rvdcp:AzDQL2iqjEeKQG5+YV
TLSH T134848C1772E850FAD5668239C9A38A06FB73781607209B8F17A4477A1F237D1BD3E721
TrID 44.4% (.EXE) Win64 Executable (generic) (10522/11/4)
21.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
8.7% (.ICL) Windows Icons Library (generic) (2059/9)
8.5% (.EXE) OS/2 Executable (generic) (2029/13)
8.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter abuse_ch
Tags:exe RAT ValleyRAT


Avatar
abuse_ch
ValleyRAT C2:
47.239.129.136:6666

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
47.239.129.136:6666 https://threatfox.abuse.ch/ioc/1520289/

Intelligence

File Origin
# of uploads :
1
# of downloads :
530
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
38c5b55526d9f6e258ed2ed6b20e166d.exe
Verdict:
Malicious activity
Analysis date:
2025-05-12 17:46:09 UTC
Tags:
silverfox backdoor valleyrat winos rat
Link:
https://app.any.run/tasks/535b3aa2-b334-420e-b3c5-2f0cee1c0035

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Tool.Ulise-10001984-0
Create hunting rule

Win.Malware.Spywarex-10022879-0
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=682234b0e16384d6a703d6a5
Tags:
dropper emotet spawn virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file
Connection attempt
Sending a custom TCP request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm evasive eventvwr exploit hacktool lolbin microsoft_visual_cc msconfig wsreset
Link:
https://www.filescan.io/uploads/6822343fc7418694c8a93b80/reports/59cf9fa4-0d66-401d-9101-af13171b322f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/2f8caaee0056f565ff196509cec7c15e804b5a3349e0f8da20e93e889939e5cf
Malware family:
UACMe
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/43b39010-71fd-400d-8474-c26599928564
Result
Threat name:
UACMe, ValleyRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1688221
Signature
Allocates memory in foreign processes
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Opens the same file many times (likely Sandbox evasion)
Sigma detected: Suspect Svchost Activity
Suricata IDS alerts for network traffic
Writes to foreign memory regions
Yara detected UAC Bypass using CMSTP
Yara detected UACMe UAC Bypass tool
Yara detected ValleyRAT
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2f8caaee0056f565ff196509cec7c15e804b5a3349e0f8da20e93e889939e5cf
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2f8caaee0056f565ff196509cec7c15e804b5a3349e0f8da20e93e889939e5cf/
Threat name:
Win64.Backdoor.Farfli
Create hunting rule
Status:
Malicious
First seen:
2025-05-09 13:12:00 UTC
File Type:
PE+ (Exe)
Extracted files:
7
AV detection:
30 of 37 (81.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=f6gkv3qak32wl7yzmue45r6bl2aewwrtjhqprwra5e7irgjz4xhq._file
Verdict:
malicious
Label(s):
valleyrat
Create hunting rule
Similar samples:
error
ValleyRAT
Result
Malware family:
valleyrat_s2
Create hunting rule
Score:
  10/10
Tags:
family:valleyrat_s2
Link:
https://tria.ge/reports/250512-wb2a2svqx7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Enumerates connected drives
Malware Config
C2 Extraction:
47.239.129.136:6666
47.239.129.136:8888
127.0.0.1:80
Verdict:
Malicious
Tags:
Win.Tool.Ulise-10001984-0
YARA:
n/a
Link:
https://app.threat.zone/submission/3b0af0c5-7b34-47eb-932f-20f6f724dc2f
Unpacked files
SH256 hash:
2f8caaee0056f565ff196509cec7c15e804b5a3349e0f8da20e93e889939e5cf
MD5 hash:
38c5b55526d9f6e258ed2ed6b20e166d
SHA1 hash:
df82923fed249f542675b0edfc3e80a5f2e9c442
Link:
https://www.unpac.me/results/f238933f-32f9-40da-9469-b86adbb8e390/
SH256 hash:
8bc94eaab9f28443c882586b7fd38271f543b6e2b2e04a3f449750bd800b0af0
MD5 hash:
9557f6c29dd69a1cf67d91810fffc536
SHA1 hash:
2a7665e23371a8be26a05e1e57a0cdb2209e22ad
Detections:
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/f238933f-32f9-40da-9469-b86adbb8e390/
Parent samples :
8979349c501e985918d443e413710cd0c6a9e1f6e6d9de0083076d2ab3ac31cb
cf417c75c8323c2f5b6d99661aac0ccfdb977a020b6c02d0170f1de350c04252
2f8caaee0056f565ff196509cec7c15e804b5a3349e0f8da20e93e889939e5cf
7fe80e04473465d9f615ff5b47b0d79e7b1b0f43cee6d249e0ca695073a5f7fa
144ef23ee12c8eea97bb470379504ba2ae30f2263b8242d5aa9e358e29234b35
589843f0267a1dfc864fd4e1d87c3aeaddea946f67d4fa5f94e319cfd09bd623
ec254c2d8a4ff02028505bf7c1eb994d24ff30d7395d2057d45f8cb9e4adfb60
78073d05ad9332199eea1f51bc30ae648745d4fe2e725f1ffca0d164369822f9
a5d58182d5e4d5c1452d7d39dd2261c0fd78363cc5ec9772cb3b681238781958
970e8ab761970955e79c64c81b07e4598161cfb1d269b980f067bfe019495f6c
6e077a0d195558a6dbe2f78349db94ccddff1513a92288b9a1408256267560e7
c16ba051fe48b6f157f2bd2fe580ded19982122b56b55b1342163f064db7dedb
f320b0222a719de0b9b5c67fc856f391ae3a6af171205b8373914e63eed11ff8
Malware family:
ValleyRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2f8caaee0056/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2f8caaee0056f565ff196509cec7c15e804b5a3349e0f8da20e93e889939e5cf

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: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__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:ICMLuaUtil_UACMe_M41
Create hunting rule
Author:Marius 'f0wL' Genheimer <hello@dissectingmalwa.re>
Description:A Yara rule for UACMe Method 41 -> ICMLuaUtil Elevated COM interface
Reference:https://github.com/hfiref0x/UACME
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
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:NET
Create hunting rule
Author:malware-lu
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:ValleyRAT
Create hunting rule
Author:NDA0E
Description:Detects ValleyRAT

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
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CreateStreamOnHGlobal
GDI_PLUS_APIInterfaces with Graphicsgdiplus.dll::GdiplusStartup
gdiplus.dll::GdiplusShutdown
gdiplus.dll::GdipGetImageEncoders
gdiplus.dll::GdipGetImageEncodersSize
gdiplus.dll::GdipDeleteGraphics
gdiplus.dll::GdipAlloc
MULTIMEDIA_APICan Play MultimediaWINMM.dll::timeGetTime
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::OpenProcess
KERNEL32.dll::VirtualAllocEx
KERNEL32.dll::WriteProcessMemory
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleWindow
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetSystemDirectoryA
KERNEL32.dll::FindFirstFileW
KERNEL32.dll::RemoveDirectoryW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_SOCK_APIUses Network to send and receive dataWS2_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_APIPerforms GUI ActionsUSER32.dll::PeekMessageW

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