MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1f9944ccc4cb956c4eb81e76d51b3cb048b838f2f746e2017d4492abd5e9ed79. 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: 16

Intelligence 16 IOCs YARA 10 File information Comments

SHA256 hash:	1f9944ccc4cb956c4eb81e76d51b3cb048b838f2f746e2017d4492abd5e9ed79
SHA3-384 hash:	b112782311ee9e194843653d4300d0e2cea4619a8fb598c68c6b6c34846b1d2012d113d079a1b32b64dba5bacc5f65f5
SHA1 hash:	b118551289c9398a339cd1161b2c101571d4b5fd
MD5 hash:	a2bc2785420b0c6f685d8692d813fbbc
humanhash:	wisconsin-tennis-item-oscar
File name:	lockbit_unpacked.exe
Download:	download sample
Signature	BlackMatter Create hunting rule
File size:	165'888 bytes
First seen:	2024-03-28 16:17:09 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	a50a0d82b9120fc73965c28fea79e1f9 (4 x LockBit, 3 x BlackMatter)
ssdeep	3072:W5uyulsHwDV1gFnTwn7zwJGJ+at5kCI5Gzei3N2VzRmK:W5uZ1DPgFnk7EJwJI5gDN2VVm
Threatray	324 similar samples on MalwareBazaar
TLSH	T1E0F36C227152D177C4A239F1B32A76A1B39D8E2C16A8A453FAF8DF0538778237F11947
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)
Reporter	0x0d4y
Tags:	BlackMatter exe lockbit

Intelligence

File Origin

# of uploads :

# of downloads :

658

Origin country :

Vendor Threat Intelligence

Malware family:

lockbit

ID:

File name:

1f9944ccc4cb956c4eb81e76d51b3cb048b838f2f746e2017d4492abd5e9ed79.exe

Verdict:

Malicious activity

Analysis date:

2024-03-28 16:20:23 UTC

Tags:

lockbit ransomware

Link:

https://app.any.run/tasks/cf35bc85-f419-4e1c-8fd7-419b1bfe355e

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Сreating synchronization primitives

Launching a service

Delayed writing of the file

Changing a file

Reading critical registry keys

Moving a recently created file

Modifies multiple files

Using the Windows Management Instrumentation requests

Sending a UDP request

Creating a window

Creating a file in the %temp% directory

Creating a file in the mass storage device

Stealing user critical data

Forced shutdown of a system process

Forced shutdown of a browser

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

blackmatter fingerprint lockbit lockbit3 packed ransomware virus xpack

Link:

https://www.filescan.io/uploads/66059849f1c80c2d4d5b8344/reports/912769c8-98a3-4e66-9d46-73965cf4b479/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/1f9944ccc4cb956c4eb81e76d51b3cb048b838f2f746e2017d4492abd5e9ed79

Malware family:

BlackMatter Ransomware

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/7a8db1bd-8144-4d35-bac5-c21fd53d42eb

Result

Threat name:

LockBit ransomware

Detection:

malicious

Classification:

rans.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1417155

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

Antivirus detection for URL or domain

Changes the wallpaper picture

Contains functionality to detect hardware virtualization (CPUID execution measurement)

Deletes itself after installation

Found malware configuration

Found potential ransomware demand text

Found ransom note / readme

Found Tor onion address

Hides threads from debuggers

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Modifies existing user documents (likely ransomware behavior)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

PE file has a writeable .text section

Writes a notice file (html or txt) to demand a ransom

Writes many files with high entropy

Writes to foreign memory regions

Yara detected LockBit ransomware

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/1f9944ccc4cb956c4eb81e76d51b3cb048b838f2f746e2017d4492abd5e9ed79

Detection:

lockbit

Link:

https://mwdb.cert.pl/sample/1f9944ccc4cb956c4eb81e76d51b3cb048b838f2f746e2017d4492abd5e9ed79/

Threat name:

Win32.Ransomware.Lockbit

Status:

Malicious

First seen:

2024-03-14 23:07:01 UTC

File Type:

PE (Exe)

AV detection:

30 of 38 (78.95%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=d6mujtgezokwytvydz3nkgz4wbelqohs65doeal5isjkxvpj5v4q._file

Verdict:

malicious

BlackMatter

d61af007f6c792b8fb6c677143b7d0e2533394e28c50737588e40da475c040ee

BlackMatter

+ 314 additional samples on MalwareBazaar

Result

Malware family:

lockbit

Score:

10/10

Tags:

family:lockbit ransomware

Link:

https://tria.ge/reports/240328-trxxfsbd34/

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

Drops file in System32 directory

Sets desktop wallpaper using registry

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops desktop.ini file(s)

Deletes itself

Executes dropped EXE

Loads dropped DLL

Lockbit

Rule to detect Lockbit 3.0 ransomware Windows payload

Unpacked files

SH256 hash:

1f9944ccc4cb956c4eb81e76d51b3cb048b838f2f746e2017d4492abd5e9ed79

MD5 hash:

a2bc2785420b0c6f685d8692d813fbbc

SHA1 hash:

b118551289c9398a339cd1161b2c101571d4b5fd

Detections:

win_lockbit_auto

Darkside

Link:

https://www.unpac.me/results/311a4c96-62ed-4128-badf-8ce611d3812e/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/1f9944ccc4cb/report/overview.html

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/1f9944ccc4cb956c4eb81e76d51b3cb048b838f2f746e2017d4492abd5e9ed79

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:	CyberCrime_LockBit_Ransomware Create hunting rule
Author:	gmrdkd@s2w.inc
Description:	Detection LockBit 3.0/Black rule

Rule name:	Darkside Create hunting rule
Author:	@bartblaze
Description:	Identifies Darkside ransomware.

Rule name:	Lockbit3Detect_via_SectionPatterns Create hunting rule
Author:	InterProbe Malware-Vulnerability Research Team
Description:	Detects new Lockbit 3.0 variants

Rule name:	LockBit3_ransomware Create hunting rule
Author:	BlackBerry
Description:	Rule detecting Lockbit3 ransomware samples

Rule name:	LockbitBlack_Loader Create hunting rule
Author:	Zander Work
Description:	Hunting rule for the Lockbit Black loader, based on https://twitter.com/vxunderground/status/1543661557883740161

Rule name:	RANSOM_Lockbit_Black_Packer Create hunting rule
Author:	SECUINFRA Falcon Team
Description:	Detects the packer used by Lockbit Black (Version 3)
Reference:	https://twitter.com/vxunderground/status/1543661557883740161

Rule name:	RAN_Lockbit_v3_Jun_2022_1 Create hunting rule
Author:	Arkbird_SOLG
Description:	Detect the lockbit ransomware
Reference:	https://twitter.com/vxunderground/status/1543661557883740161

Rule name:	Windows_Ransomware_Lockbit_369e1e94 Create hunting rule
Author:	Elastic Security

Rule name:	win_lockbit_auto Create hunting rule
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.

Delivery method

Multiple

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::LoadLibraryExA KERNEL32.dll::GetCommandLineA
WIN_USER_API	Performs GUI Actions	USER32.dll::CreateWindowExW

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