MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1c5fd7bf511885054464124142f793501ab2c6e987b203c1a5f4b3bdcccb1fa1. 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


Ransomware.BlackMatter


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1c5fd7bf511885054464124142f793501ab2c6e987b203c1a5f4b3bdcccb1fa1
SHA3-384 hash: bc752aecca37bafb5bf503c6cc36b11f417cc0696746a170ea837b9897d37c8516015c943fde57ee8ff4280921d8feca
SHA1 hash: 50087bb06cb7218f21a271c3d6722f9db9706f77
MD5 hash: 92f1d2d6a205b151b78aa98ccf32abf3
humanhash: twelve-angel-kentucky-undress
File name:Document.zip
Download: download sample
Signature Ransomware.BlackMatter
Create hunting rule
File size:15'901 bytes
First seen:2024-04-29 13:05:59 UTC
Last seen:2024-04-30 06:17:39 UTC
File type: zip
MIME type:application/zip
ssdeep 384:11eHg+swKKn8633ZVi0e+HodnIVmz60aUZldx5Yekj:XePLLN3mWSSHonzG
TLSH T13E62D1D751E18D6DF82557BF5E73DFCBF971F4E4ABC708622A89A0D91A9E210B81001C
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:Ransomware.BlackMatter zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Jenny Green <Jenny@gsd.com>" (likely spoofed)
Received: "from [37.151.50.121] (unknown [95.58.179.253]) "
Date: "Mon, 29 Apr 2024 22:38:35 +0500"
Subject: "Your Document"
Attachment: "Document.zip"

Intelligence

File Origin
# of uploads :
437
# of downloads :
234
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:Document.doc.scr
File size:58'880 bytes
SHA256 hash: 0cc54ffd005b4d3d048e72f6d66bcc1ac5a7a511ab9ecf59dc1d2ece72c69e85
MD5 hash: a1784aa6993af25cb55a36154a954649
MIME type:application/x-dosexec
Signature Ransomware.BlackMatter
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm masquerade obfuscated
Link:
https://www.filescan.io/uploads/662f9b3fd2fc149e412793ed/reports/13de8011-d7ff-4eaa-8bc0-943d61820534/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/1c5fd7bf511885054464124142f793501ab2c6e987b203c1a5f4b3bdcccb1fa1
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/1c5fd7bf511885054464124142f793501ab2c6e987b203c1a5f4b3bdcccb1fa1
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Score:
53%
Verdict:
Susipicious
File Type:
ARCHIVE
Link:
https://malprob.io/report/1c5fd7bf511885054464124142f793501ab2c6e987b203c1a5f4b3bdcccb1fa1
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1c5fd7bf511885054464124142f793501ab2c6e987b203c1a5f4b3bdcccb1fa1/
Threat name:
Win32.Ransomware.Lockbit
Create hunting rule
Status:
Malicious
First seen:
2024-04-29 12:34:28 UTC
File Type:
Binary (Archive)
Extracted files:
17
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=drp5pp2rdccqkrdecjauf54tkanlfrxjq6zahqnf6sz33tgld6qq._file
Result
Malware family:
lockbit
Create hunting rule
Score:
  10/10
Tags:
family:lockbit ransomware spyware stealer
Link:
https://tria.ge/reports/240429-qmtgpabh6x/
Behaviour
Modifies Control Panel
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops desktop.ini file(s)
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Renames multiple (355) files with added filename extension
Lockbit
Rule to detect Lockbit 3.0 ransomware Windows payload
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/1c5fd7bf511885054464124142f793501ab2c6e987b203c1a5f4b3bdcccb1fa1

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:SUSP_XORed_URL_In_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834

File information

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

Malspam

Ransomware.BlackMatter

zip 1c5fd7bf511885054464124142f793501ab2c6e987b203c1a5f4b3bdcccb1fa1

(this sample)

BlackMatter

Executable exe 0cc54ffd005b4d3d048e72f6d66bcc1ac5a7a511ab9ecf59dc1d2ece72c69e85

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 0cc54ffd005b4d3d048e72f6d66bcc1ac5a7a511ab9ecf59dc1d2ece72c69e85
  
Dropping
Ransomware.BlackMatter
  
Dropping
MD5 a1784aa6993af25cb55a36154a954649

Comments