MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4735fa4032a6124bfecf3b6d5ba4d3c5e8a6cee28af2698b697d740ef6627246. 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


Threat unknown


Vendor detections: 10


Intelligence 10 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4735fa4032a6124bfecf3b6d5ba4d3c5e8a6cee28af2698b697d740ef6627246
SHA3-384 hash: 63b6382cd998978064f42d71a3e529ac86d7b607d367efd4ef036fbae939900ef77f3fc6049562f035840ef335cefcbe
SHA1 hash: ce45b32cde9001ce52abef37b3efab305a92ca83
MD5 hash: 0f77b77129f3083d2b082ff9d331cebc
humanhash: angel-missouri-wisconsin-solar
File name:vstdlib_s64.dll
Download: download sample
File size:2'365'952 bytes
First seen:2025-03-25 01:36:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 77201a301e12d5507b6dd27f027a3b26
ssdeep 49152:os61Rb/dKazj/5k023IGDVM5TfG01NxxQpGHLCu6EXMxb1+fpd:KEeBH7
TLSH T12AB5BD11E3E801B8D977D634CAA68333DA70B9864730E58F0699C6552F37EA16B3F712
TrID 64.5% (.EXE) InstallShield setup (43053/19/16)
15.7% (.EXE) Win64 Executable (generic) (10522/11/4)
7.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
3.0% (.ICL) Windows Icons Library (generic) (2059/9)
3.0% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter threatcat_ch
Tags:exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
500
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4735fa4032a6124bfecf3b6d5ba4d3c5e8a6cee28af2698b697d740ef6627246.exe
Verdict:
No threats detected
Analysis date:
2025-03-25 03:41:04 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ddc04a27-bbc2-49fb-879a-4e5f4c66f190

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.W64.GenKryptik.HFPH.tr.18753.21376.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e22c62acb044ea849e905d
Tags:
emotet
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context fingerprint lolbin masquerade microsoft_visual_cc remote
Link:
https://www.filescan.io/uploads/67e208c6a08e28b31da5f9e4/reports/13823434-3336-4028-bdee-9b349f3aea92/overview
Verdict:
Suspicious
Labled as:
W64/Agent.KHK.gen
Link:
https://www.hybrid-analysis.com/sample/4735fa4032a6124bfecf3b6d5ba4d3c5e8a6cee28af2698b697d740ef6627246
Result
Verdict:
UNKNOWN
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/544abf4e-d1c3-471c-9896-5d11fd498473
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1647607
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1647607 Sample: vstdlib_s64.dll.exe Startdate: 25/03/2025 Architecture: WINDOWS Score: 48 28 Multi AV Scanner detection for submitted file 2->28 8 loaddll64.exe 1 2->8         started        process3 process4 10 cmd.exe 1 8->10         started        12 rundll32.exe 8->12         started        14 rundll32.exe 8->14         started        16 19 other processes 8->16 process5 18 rundll32.exe 10->18         started        20 WerFault.exe 16 12->20         started        22 WerFault.exe 16 14->22         started        24 WerFault.exe 20 16 16->24         started        process6 26 WerFault.exe 16 18->26         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4735fa4032a6124bfecf3b6d5ba4d3c5e8a6cee28af2698b697d740ef6627246
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4735fa4032a6124bfecf3b6d5ba4d3c5e8a6cee28af2698b697d740ef6627246/
Threat name:
Win64.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-03-24 21:35:07 UTC
File Type:
PE+ (Dll)
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i427uqbsuyjex7wphnwvxjgtyxukntxcrlzgtc3jpv2a55tcojda._file
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/250325-b1wrmssnx2/
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9d5903c2-672e-455c-a874-f0e0fd05be4b
Unpacked files
SH256 hash:
4735fa4032a6124bfecf3b6d5ba4d3c5e8a6cee28af2698b697d740ef6627246
MD5 hash:
0f77b77129f3083d2b082ff9d331cebc
SHA1 hash:
ce45b32cde9001ce52abef37b3efab305a92ca83
Link:
https://www.unpac.me/results/27f03193-9c87-4175-b38c-74d9bf788611/
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/4735fa4032a6124bfecf3b6d5ba4d3c5e8a6cee28af2698b697d740ef6627246

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__MemoryWorkingSet
Create hunting rule
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
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:Jupyter_infostealer
Create hunting rule
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:ThreadControl__Context
Create hunting rule
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.

Malspam

Executable exe 4735fa4032a6124bfecf3b6d5ba4d3c5e8a6cee28af2698b697d740ef6627246

(this sample)

  
Delivery method
Distributed via e-mail attachment

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
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CreateProcessA
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::OpenProcess
KERNEL32.dll::VirtualAllocEx
KERNEL32.dll::VirtualAllocExNuma
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
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
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileExW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::GetSystemDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_BCRYPT_APICan Encrypt Filesbcrypt.dll::BCryptGenRandom
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW

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