MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 643e6e51e42a4274005b853efc80ad54e8f6c8aa113cf415fb8bdebcc7399b84. 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



LockBit


Vendor detections: 13


Intelligence 13 IOCs YARA 7 File information Comments

SHA256 hash: 643e6e51e42a4274005b853efc80ad54e8f6c8aa113cf415fb8bdebcc7399b84
SHA3-384 hash: 3dc8a5303d50bf095333c360581fb7394af0ccdc62f10a64ea0271139d2fd8ebf3a2e1402249b81fe9a292c819f26ab2
SHA1 hash: e48876d7beffd78e9d877892b29f35a45d28b159
MD5 hash: a23fe0cd95fd358590d2bb681d277f9e
humanhash: nitrogen-ink-pizza-whiskey
File name:643e6e51e42a4274005b853efc80ad54e8f6c8aa113cf415fb8bdebcc7399b84
Download: download sample
Signature LockBit
File size:145'920 bytes
First seen:2024-05-06 12:00:12 UTC
Last seen:Never
File type:DLL dll
MIME type:application/x-dosexec
imphash d5feac3e94d92e4c2e9fe14f1f783fd7 (1 x LockBit, 1 x BlackMatter)
ssdeep 3072:trPn1hcH98P67PBH2G3gFoh3H6J1vVjgQp3RpM1dpbQrQymzUOMgInmwuzqy/FEk:trP1hG98P67PNV3gih3H6J1VjgQp3RpO
Threatray 146 similar samples on MalwareBazaar
TLSH T190E36B21BA15D077D07716F2BF8F7512735F89380A796443EAE41F0924AACE7AF04A93
TrID 28.5% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
13.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
12.2% (.EXE) Win32 Executable (generic) (4504/4/1)
5.6% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter 0x0d4y
Tags:dll lockbit

Intelligence


File Origin
# of uploads :
1
# of downloads :
507
Origin country :
BR BR
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
packed
Malware family:
BlackMatter Ransomware
Verdict:
Malicious
Result
Threat name:
LockBit ransomware
Detection:
malicious
Classification:
rans.evad
Score:
80 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Found potential ransomware demand text
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected LockBit ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1436721 Sample: 3HofHnZI1R.dll Startdate: 06/05/2024 Architecture: WINDOWS Score: 80 28 Malicious sample detected (through community Yara rule) 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 2 other signatures 2->34 7 loaddll32.exe 1 2->7         started        process3 process4 9 rundll32.exe 7->9         started        12 rundll32.exe 7->12         started        14 rundll32.exe 7->14         started        16 9 other processes 7->16 signatures5 36 Found potential ransomware demand text 9->36 38 Contains functionality to detect hardware virtualization (CPUID execution measurement) 9->38 18 WerFault.exe 22 16 9->18         started        20 WerFault.exe 16 12->20         started        22 WerFault.exe 16 14->22         started        24 rundll32.exe 16->24         started        26 WerFault.exe 16->26         started        process6
Threat name:
Win32.Ransomware.BlackMatter
Status:
Malicious
First seen:
2022-09-21 11:23:27 UTC
File Type:
PE (Dll)
AV detection:
32 of 38 (84.21%)
Threat level:
  5/5
Result
Malware family:
lockbit
Score:
  10/10
Tags:
family:blackmatter family:lockbit
Behaviour
Suspicious use of WriteProcessMemory
Unpacked files
SH256 hash:
d641ad955ef4cff5f0239072b3990d47e17b9840e07fd5feea93c372147313c5
MD5 hash:
94d6b5b569a64001859021e6e161d9fb
SHA1 hash:
44ace51ff88d2369f17d93ab82d71dde10bc468f
SH256 hash:
63c8efca0f52ebea1b3b2305e17580402f797a90611b3507fab6fffa7f700383
MD5 hash:
c804ef379e2f16e5afd0c448f72cccb8
SHA1 hash:
53f97950e64ba696a49781492a15ff879dc8614f
SH256 hash:
917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
MD5 hash:
294e9f64cb1642dd89229fff0592856b
SHA1 hash:
97b148c27f3da29ba7b18d6aee8a0db9102f47c9
SH256 hash:
643e6e51e42a4274005b853efc80ad54e8f6c8aa113cf415fb8bdebcc7399b84
MD5 hash:
a23fe0cd95fd358590d2bb681d277f9e
SHA1 hash:
e48876d7beffd78e9d877892b29f35a45d28b159
Detections:
win_lockbit_auto Darkside
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:HeavensGate
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:LockBit3_ransomware
Author:BlackBerry
Description:Rule detecting Lockbit3 ransomware samples
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Ransomware_Lockbit_369e1e94
Author:Elastic Security
Rule name:win_lockbit_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.lockbit.

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_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::GetFileAttributesW

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