MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f
SHA3-384 hash: 831044a118b985f216c875367d180c0682122f79b422ed8ffa458e9879c9b5065b5b9a127e1d0b2f5aa5fdb0852694f7
SHA1 hash: 9dfebe07452530d402dc84a1c08095186f0d8cb5
MD5 hash: 3c6edd9bc75a5956209060e817384992
humanhash: aspen-kentucky-wyoming-bacon
File name:file
Download: download sample
Signature BlackMatter
Create hunting rule
File size:149'504 bytes
First seen:2026-01-23 07:03:07 UTC
Last seen:2026-01-23 16:56:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 41fb8cb2943df6de998b35a9d28668e8 (82 x BlackMatter, 9 x LockBit, 1 x DragonForce)
ssdeep 3072:A6glyuxE4GsUPnliByocWepnGYt5w+CA:A6gDBGpvEByocWeVo+C
TLSH T1BBE37E21F112D0B3C83718F13736B5B2F39E8E6C19996507EAD80F99BCA48232F55997
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 Bitsight
Tags:BlackMatter dropped-by-phorpiex exe


Avatar
Bitsight
url: http://195.178.136.19/29.exe

Intelligence

File Origin
# of uploads :
19
# of downloads :
129
Origin country :
US US
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
Link:
https://research.acce.ciphertechsolutions.com/results/35f69ffe-5945-4afa-9f64-1607dce563cd/
Malware family:
lockbit
Create hunting rule
ID:
1
File name:
_b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f.exe
Verdict:
Malicious activity
Analysis date:
2026-01-23 07:16:14 UTC
Tags:
lockbit ransomware auto-download braincipher darkside arch-scr
Link:
https://app.any.run/tasks/f578ccbb-44dd-47ef-8c09-33bb412ae54b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/49856/
Detection(s):
Win.Ransomware.LockBitBlack-10033143-1
Create hunting rule

Win.Ransomware.BlackMatter-9965914-0
Create hunting rule

Win.Ransomware.Lazy-10003135-0
Create hunting rule

SecuriteInfo.com.Trojan.Encoder.42541.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69731d91f3cf908ba5079f79
Tags:
spawn
Verdict:
Malicious
Labled as:
Trojan.Ransom
Link:
https://www.hybrid-analysis.com/sample/b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f
Result
Gathering data
Malware family:
BlackMatter Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5381f271-c517-4743-93b5-36c795608442
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/3c6edd9bc75a5956209060e817384992
Detection:
lockbit
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f/
Verdict:
Malicious
Threat:
Family.LOCKBIT
Link:
https://tip.neiki.dev/file/b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w375xbhwcub7uc4m5lkuuvdzv4yx2ow6y76toxz56izxk5mydnxq._file
Verdict:
malicious
Label(s):
lockbit
Create hunting rule
Similar samples:
error
BlackMatter
Result
Malware family:
lockbit
Create hunting rule
Score:
  10/10
Tags:
family:lockbit defense_evasion discovery ransomware spyware stealer
Link:
https://tria.ge/reports/260123-hvlg2ses6h/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Control Panel
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops desktop.ini file(s)
Enumerates connected drives
Indicator Removal: File Deletion
Checks computer location settings
Deletes itself
Executes dropped EXE
Reads user/profile data of web browsers
Renames multiple (687) files with added filename extension
Unpacked files
SH256 hash:
b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f
MD5 hash:
3c6edd9bc75a5956209060e817384992
SHA1 hash:
9dfebe07452530d402dc84a1c08095186f0d8cb5
Link:
https://www.unpac.me/results/179e9647-fd19-4224-846c-7f043f6f2a78/
Malware family:
LockBit
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b6ffdb84f615/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.82
Link:
https://yomi.yoroi.company/submissions/b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f

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
Create hunting rule
Author:Rony (@r0ny_123)
Description:Detects Blackmatter ransomware
Rule name:Darkside
Create hunting rule
Author:@bartblaze
Description:Identifies Darkside ransomware.
Rule name:lb_stack_string_decrypt_1
Create hunting rule
Author:CTI Purple Team
Description:This rule detects the code pattern of the Stack Strings decryption algorithm.
Rule name:Windows_Ransomware_Lockbit_369e1e94
Create hunting rule
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 b6ffdb84f61503fa0b8cead54a5479af317d3adec7fd375f3df2337575981b6f

(this sample)

  
Dropped by
Phorpiex
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3762456/
Cape
Cape
https://www.capesandbox.com/analysis/49856/

Comments