MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 340d5eb0329225d07d7757187db8a5ebde28be52427016287837a7f17cc1a878. 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 11 File information Comments

SHA256 hash: 340d5eb0329225d07d7757187db8a5ebde28be52427016287837a7f17cc1a878
SHA3-384 hash: 3ac6c90019fc85777b7a99cf417af0711729a568029898522d9e317147145085a8412aca6d8321c3dec74aeedd697228
SHA1 hash: d7a270f591164da271a1078ab6d3117a4217f58a
MD5 hash: 2e167cf63eb88788d83231cede672aef
humanhash: mango-solar-black-lactose
File name:user32.exe
Download: download sample
Signature ValleyRAT
File size:68'730'888 bytes
First seen:2025-07-02 08:17:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a827120954512c880ebdda864fd4fc94 (1 x ValleyRAT)
ssdeep 786432:HoewFKveThRyNpCHWIEKDbzVaI8qNIupBj9j6cTUn1GAIDm3:ITK2iIXD3VaI8qNIupBj9mcTUn1am3
TLSH T11AE7BF16B29245E4E4B3C178C9E79617E3727C114B3187DB21981B6A1F777F0AE3A322
TrID 50.0% (.EXE) Generic Win/DOS Executable (2002/3)
49.9% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter kafan_shengui
Tags:exe SilverFox ValleyRAT winos

Intelligence


File Origin
# of uploads :
1
# of downloads :
51
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://bazaar.abuse.ch/browse/
Verdict:
Malicious activity
Analysis date:
2025-07-02 10:31:01 UTC
Tags:
arch-exec auto generic

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
emotet cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the system32 directory
Launching a process
Creating a process with a hidden window
Searching for synchronization primitives
Connection attempt
Sending a UDP request
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug anti-vm expand fingerprint invalid-signature keylogger lolbin microsoft_visual_cc overlay packed packed signed
Gathering data
Threat name:
Win64.Trojan.Malgent
Status:
Malicious
First seen:
2025-07-02 08:16:22 UTC
File Type:
PE+ (Exe)
Extracted files:
387
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
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__MemoryWorkingSet
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
Rule name:DebuggerCheck__QueryInfo
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
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:NET
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
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

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 (NX_COMPAT)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::AllocateAndInitializeSid
ADVAPI32.dll::BuildTrusteeWithSidW
ADVAPI32.dll::CopySid
ADVAPI32.dll::FreeSid
ADVAPI32.dll::GetEffectiveRightsFromAclW
ADVAPI32.dll::GetLengthSid
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
MULTIMEDIA_APICan Play MultimediaWINMM.dll::PlaySoundW
WINMM.dll::timeKillEvent
WINMM.dll::timeSetEvent
NET_SHARE_APICan access Network ShareNETAPI32.dll::NetShareEnum
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AccessCheck
ADVAPI32.dll::DuplicateToken
ADVAPI32.dll::GetTokenInformation
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::OpenProcess
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::VirtualAllocEx
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::GetDriveTypeW
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetSystemInfo
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::GetConsoleWindow
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileMappingW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileExW
KERNEL32.dll::MoveFileW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupAccountSidW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::CreateMenu
USER32.dll::FindWindowW
USER32.dll::FindWindowExW
USER32.dll::FindWindowA
USER32.dll::PeekMessageW

Comments