MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 64c924b671ac30fb16981fe3473e6241f41bb8ddd39d342d279f2c5ecba65fc2. 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



BlackMatter


Vendor detections: 17


Intelligence 17 IOCs YARA 5 File information Comments

SHA256 hash: 64c924b671ac30fb16981fe3473e6241f41bb8ddd39d342d279f2c5ecba65fc2
SHA3-384 hash: 1d78b0aa338d358bb9ae9ff635e96c0397b0f0da1050a289180ce41bd957c775825da2321dcf651d1c9f49d791644b2c
SHA1 hash: 15556d8d57fdd96369374aaf9352fedb9e91414e
MD5 hash: c444ba318a9c50e4ac3b46e9ae2667f7
humanhash: cold-cola-texas-edward
File name:test_nopass.exe
Download: download sample
Signature BlackMatter
File size:161'792 bytes
First seen:2025-12-06 17:31:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3bc510de773c954bd69d33670cb624d6 (10 x BlackMatter, 3 x LockBit)
ssdeep 3072:VDDDDDDDDDDDDDDDDDDDE45d/t6sVkgZqltP3368h6QrWx+A0dOvAiTf0W:H5d/zugZqll3ljrd8vJTf
Threatray 2'324 similar samples on MalwareBazaar
TLSH T1BAF37D21B112D177CA5238F2A729B7B0738A5E2C12B8A467F6E4CF4B35738236F15947
TrID 25.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
19.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.1% (.EXE) Win32 Executable (generic) (4504/4/1)
7.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
7.8% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter juroots
Tags:BlackMatter exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
82
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
LockBit
Details
LockBit
a PCG-lockbit seed, a RSA public key modulus, flags, hashes for excluded folders, files, and extensions, hashes for computer names, killed processes and services, a list of credentials, a ransom note, and information parsed from the ransom note
Malware family:
lockbit
ID:
1
File name:
test_nopass.exe
Verdict:
Malicious activity
Analysis date:
2025-12-06 17:44:56 UTC
Tags:
braincipher ransomware lockbit darkside

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
91.7%
Tags:
ransomware obfuscated remo
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-06T15:42:00Z UTC
Last seen:
2025-12-07T01:41:00Z UTC
Hits:
~10
Malware family:
BlackMatter Ransomware
Verdict:
Malicious
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Ransomware.Lockbit
Status:
Malicious
First seen:
2025-12-06 14:45:21 UTC
File Type:
PE (Exe)
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Result
Malware family:
lockbit
Score:
  10/10
Tags:
family:lockbit defense_evasion discovery ransomware
Behaviour
Modifies Control Panel
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops desktop.ini file(s)
Indicator Removal: File Deletion
Checks computer location settings
Deletes itself
Executes dropped EXE
Renames multiple (143) files with added filename extension
Verdict:
Malicious
Tags:
ransomware lockbit Win.Ransomware.LockBitBlack-10033143-1
YARA:
Windows_Ransomware_Lockbit_369e1e94 LockBit3
Unpacked files
SH256 hash:
64c924b671ac30fb16981fe3473e6241f41bb8ddd39d342d279f2c5ecba65fc2
MD5 hash:
c444ba318a9c50e4ac3b46e9ae2667f7
SHA1 hash:
15556d8d57fdd96369374aaf9352fedb9e91414e
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:CRIME_WIN32_RANSOM_BLACKMATTER
Author:Rony (@r0ny_123)
Description:Detects Blackmatter ransomware
Rule name:Darkside
Author:@bartblaze
Description:Identifies Darkside ransomware.
Rule name:lb_apihashing_code_1
Author:0x0d4y
Description:This rule detects samples from the Lockbit3.0 (and BlackMatter) family unpacked in memory, identifying code reuse of key functions.
Rule name:lb_stack_string_decrypt_1
Author:CTI Purple Team
Description:This rule detects the code pattern of the Stack Strings decryption algorithm.
Rule name:Windows_Ransomware_Lockbit_369e1e94
Author:Elastic Security

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

BlackMatter

Executable exe 64c924b671ac30fb16981fe3473e6241f41bb8ddd39d342d279f2c5ecba65fc2

(this sample)

  
Delivery method
Distributed via web download

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