MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727. 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


Latrodectus


Vendor detections: 13


Intelligence 13 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727
SHA3-384 hash: 430fffa1dad3c4ec7ccde464e9264cc4b524f19f48a144599525278ae488d8b74e4fd7095e1c25e31e2c2f220e3c9c40
SHA1 hash: 596dd881f26f05a41baa862a54d12c3b31adb0e6
MD5 hash: 1e804d6e0206af158acc9758f9fff87d
humanhash: failed-robin-lima-east
File name:a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727
Download: download sample
Signature Latrodectus
Create hunting rule
File size:2'642'816 bytes
First seen:2025-03-19 07:09:57 UTC
Last seen:2025-03-19 07:44:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash bd5734407ba26f6b0f8a12908edd97e2 (21 x Latrodectus)
ssdeep 49152:FZzQqIEjvDQPOnRemSBn/VSlsBzXHWjIydNb:FYB5ydNb
Threatray 55 similar samples on MalwareBazaar
TLSH T126C57D0272E510D8D257E870CB73DB26E231788C4538766B1AE29E6B5F71720BDEE721
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter JAMESWT_WT
Tags:exe horetimodual-com Latrodectus signed

Code Signing Certificate

Organisation:LLC CESARIA
Issuer:GlobalSign GCC R45 EV CodeSigning CA 2020
Algorithm:sha256WithRSAEncryption
Valid from:2024-05-31T10:10:49Z
Valid to:2025-06-01T10:10:49Z
Serial number: 1842364451d5932004e163c7
Intelligence: 2 malware samples on MalwareBazaar are signed with this code signing certificate
Cert Graveyard Blocklist:This certificate is on the Cert Graveyard blocklist
Thumbprint Algorithm:SHA256
Thumbprint: 538d365cf5fa088f5ec75d0b36282cf340785b8bbafd562aff41a585a1ffe710
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
560
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727.exe
Verdict:
No threats detected
Analysis date:
2025-03-19 07:13:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5708f952-d045-4678-9f1d-46b5eb1b308e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Generic.37509906.158.30577.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67da6e98194f23322a710b5b
Tags:
ransomware shellcode injection emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727
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.
Malware family:
BruteRatelC4
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c1182c4f-fe7a-49e7-b3b0-03b03aa6b09d
Result
Threat name:
Bazar Loader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1642577
Signature
Antivirus detection for URL or domain
Contains functionality to inject threads in other processes
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sets debug register (to hijack the execution of another thread)
System process connects to network (likely due to code injection or exploit)
Yara detected Bazar Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1642577 Sample: 8DgZg5l8Cs.exe Startdate: 19/03/2025 Architecture: WINDOWS Score: 92 33 muuxxu.com 2->33 35 cronoze.com 2->35 41 Antivirus detection for URL or domain 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected Bazar Loader 2->45 47 Joe Sandbox ML detected suspicious sample 2->47 9 loaddll64.exe 1 2->9         started        signatures3 process4 signatures5 51 Contains functionality to inject threads in other processes 9->51 53 Sets debug register (to hijack the execution of another thread) 9->53 55 Modifies the context of a thread in another process (thread injection) 9->55 57 Found direct / indirect Syscall (likely to bypass EDR) 9->57 12 rundll32.exe 12 9->12         started        16 rundll32.exe 9->16         started        18 rundll32.exe 12 9->18         started        20 6 other processes 9->20 process6 dnsIp7 37 cronoze.com 94.232.40.48, 49728, 7718 WELLWEBNL Russian Federation 12->37 59 System process connects to network (likely due to code injection or exploit) 12->59 61 Modifies the context of a thread in another process (thread injection) 12->61 63 Contains functionality to inject threads in other processes 16->63 22 WerFault.exe 20 16 16->22         started        39 muuxxu.com 87.251.67.203, 49731, 49732, 49733 WELLWEBNL Russian Federation 20->39 24 rundll32.exe 20->24         started        27 WerFault.exe 20->27         started        signatures8 process9 signatures10 29 conhost.exe 22->29         started        49 Modifies the context of a thread in another process (thread injection) 24->49 31 WerFault.exe 3 17 24->31         started        process11
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727/
Threat name:
Win64.Trojan.BlackWidow
Create hunting rule
Status:
Malicious
First seen:
2025-02-08 15:37:12 UTC
File Type:
PE+ (Dll)
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ug2nxe7lokssbb4k2m4nmyyt7oxkwnruaah3pru3dq2mt47bo4tq._file
Verdict:
malicious
Label(s):
bruteratelc4
Create hunting rule
Similar samples:
5ad00b048285f343a0532c429e103e40ca61dd58c642823e026d51d07683cfb6
Latrodectus
9263519b5b9c17ebd05e068b34476e9a5e39c8b043cb9981ec5faaa883b7b667
Latrodectus
a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727
Latrodectus
d5b3ebdbbe68686a5c112c031a79dd22a3a2719fd7f7d67f0d42e7ebb7dba682
Latrodectus
e6cd0dde6cacb65177d316907059d883933ec7033cd2b913af577fee1f1d07ed
Latrodectus
error
Latrodectus
+ 45 additional samples on MalwareBazaar
Result
Malware family:
bruteratel
Create hunting rule
Score:
  10/10
Tags:
family:bruteratel backdoor
Link:
https://tria.ge/reports/250319-hzd9jatvgv/
Behaviour
Suspicious use of WriteProcessMemory
Brute Ratel C4
Bruteratel family
Detect BruteRatel badger
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9935710e-3cce-4867-81d3-098d998eff56
Unpacked files
SH256 hash:
a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727
MD5 hash:
1e804d6e0206af158acc9758f9fff87d
SHA1 hash:
596dd881f26f05a41baa862a54d12c3b31adb0e6
Link:
https://www.unpac.me/results/8da6f4e5-69dc-419f-ba6f-456654a54cef/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/a1b4db93eb72a520878ad338d66313fbaeab3634000fb7c69b1c34c9f3e17727

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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)

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
AUTH_APIManipulates User AuthorizationADVAPI32.dll::ConvertStringSecurityDescriptorToSecurityDescriptorW
ADVAPI32.dll::InitializeSecurityDescriptor
ADVAPI32.dll::RegSetKeySecurity
COM_BASE_APICan Download & Execute componentsole32.dll::CLSIDFromProgID
ole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::SetSecurityDescriptorDacl
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileMappingW
KERNEL32.dll::CreateFileW
KERNEL32.dll::CreateFileA
VERSION.dll::GetFileVersionInfoSizeW
VERSION.dll::GetFileVersionInfoW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryInfoKeyW
ADVAPI32.dll::RegQueryValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::CreateWindowExW

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