MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55a931cbc1bd5665a593d9448fa080c0264b938c31b502782b1ef033126e4fa6. 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



Rhadamanthys


Vendor detections: 10


Intelligence 10 IOCs YARA 10 File information Comments

SHA256 hash: 55a931cbc1bd5665a593d9448fa080c0264b938c31b502782b1ef033126e4fa6
SHA3-384 hash: e92e67fecbb91fa1b96f6c99d3a87ec706f3c6cad380253c0d6f2b984a3179bbe1be6337d10e1b94f000eb461389c50d
SHA1 hash: 799a40d3f06560503e038fab8a25dc74b26153ce
MD5 hash: 20bb23926d0aaba0d06b89dec2c64e04
humanhash: floor-shade-mirror-india
File name:vstdlib_s64.dll
Download: download sample
Signature Rhadamanthys
File size:2'547'712 bytes
First seen:2025-02-13 03:11:23 UTC
Last seen:2025-02-13 03:35:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 746d08a9a2edd8b93fd325652a9f28df (1 x Rhadamanthys)
ssdeep 24576:QKGyeCtqEB8OaiAhVSansrbg1UrORns7bHf1H2enqTcR1O6we7Jnqm7YerXXIgo5:DGyeRw8OaiAPSKqnqTcYghzOh1FNVZp
TLSH T16EC59D1597E800B4D4BBC734CA968333D670BAD69731A24B0A9CD6152F33AE15B3F726
TrID 47.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
35.2% (.EXE) InstallShield setup (43053/19/16)
8.6% (.EXE) Win64 Executable (generic) (10522/11/4)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter malcoding
Tags:exe Rhadamanthys

Intelligence


File Origin
# of uploads :
2
# of downloads :
634
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
vstdlib_s64.dll
Verdict:
No threats detected
Analysis date:
2025-02-13 03:13:56 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
90.2%
Tags:
emotet
Result
Verdict:
Clean
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context crypto fingerprint hacktool lolbin masquerade microsoft_visual_cc obfuscated remote
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.
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1613976 Sample: vstdlib_s64.dll.exe Startdate: 13/02/2025 Architecture: WINDOWS Score: 48 25 Multi AV Scanner detection for submitted file 2->25 7 loaddll64.exe 1 2->7         started        process3 process4 9 rundll32.exe 7->9         started        11 rundll32.exe 7->11         started        13 rundll32.exe 7->13         started        15 16 other processes 7->15 process5 17 WerFault.exe 20 16 9->17         started        19 WerFault.exe 16 11->19         started        21 WerFault.exe 16 13->21         started        23 rundll32.exe 15->23         started       
Threat name:
Win64.Trojan.Dacic
Status:
Malicious
First seen:
2025-02-13 03:12:16 UTC
File Type:
PE+ (Dll)
AV detection:
7 of 37 (18.92%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery
Behaviour
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Downloads MZ/PE file
Verdict:
Informative
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
55a931cbc1bd5665a593d9448fa080c0264b938c31b502782b1ef033126e4fa6
MD5 hash:
20bb23926d0aaba0d06b89dec2c64e04
SHA1 hash:
799a40d3f06560503e038fab8a25dc74b26153ce
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:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Jupyter_infostealer
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
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:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
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 (GUARD_CF)high
Reviews
IDCapabilitiesEvidence
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
ADVAPI32.dll::GetTokenInformation
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::VirtualAllocEx
KERNEL32.dll::VirtualAllocExNuma
KERNEL32.dll::WriteProcessMemory
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetSystemInfo
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::FreeConsole
KERNEL32.dll::ReadConsoleW
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetFileAttributesW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptCreateHash
bcrypt.dll::BCryptDecrypt
bcrypt.dll::BCryptDestroyHash
bcrypt.dll::BCryptDestroyKey
bcrypt.dll::BCryptEncrypt
bcrypt.dll::BCryptFinishHash
WIN_CRYPT_APIUses Windows Crypt APIbcrypt.dll::BCryptGenRandom
bcrypt.dll::BCryptHashData
bcrypt.dll::BCryptImportKey
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW

Comments