MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a397bea4c70bf3264348c88fca652fcbb2d421832672fa58a790af67bf419469. 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: 18

Intelligence 18 IOCs YARA 6 File information Comments

SHA256 hash:	a397bea4c70bf3264348c88fca652fcbb2d421832672fa58a790af67bf419469
SHA3-384 hash:	80699790a7f93411cd61f2711813bd5225dfbda7e24cb00ee9e3e7c235aa1a2aae3c667072943626dd4da6b598bf968a
SHA1 hash:	34c4d32123e0ba10891c0e0d697637b9c534811d
MD5 hash:	c48fcaaba360883a8150ce3ac7f2a0bc
humanhash:	earth-april-delta-yankee
File name:	file
Download:	download sample
Signature	BlackMatter Create hunting rule
File size:	149'504 bytes
First seen:	2026-05-29 12:11:35 UTC
Last seen:	2026-06-01 20:16:18 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	41fb8cb2943df6de998b35a9d28668e8 (136 x BlackMatter, 9 x LockBit, 1 x DragonForce)
ssdeep	3072:p6glyuxE4GsUPnliByocWepBw5V2DijnwqQll:p6gDBGpvEByocWej8u6nwZl
TLSH	T1DCE37E21F212D0B3C83718F53736B571B39E8E2C25A96847D6E80F9DBCA58236F44997
TrID	20.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 19.8% (.EXE) Win64 Executable (generic) (6522/11/2) 15.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 13.7% (.EXE) Win32 Executable (generic) (4504/4/1) 6.3% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika	pebin
Reporter	Bitsight
Tags:	BlackMatter dropped-by-phorpiex exe

Bitsight

url: http://178.16.54.109/lb19.exe

Intelligence

File Origin

# of uploads :

# of downloads :

118

Origin country :

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/f3d2206d-f322-47b0-856b-dbfb8bece506/

Malware family:

lockbit

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-05-29 12:31:32 UTC

Tags:

lockbit darkside ransomware

Link:

https://app.any.run/tasks/90ab85ef-a661-4404-8a3a-94d4f5c0041b

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/68436/

Detection(s):

Win.Ransomware.LockBitBlack-10033143-1

Win.Ransomware.BlackMatter-9965914-0

Win.Ransomware.Lazy-10003135-0

YARA.CRAIU_Crime_Lockbit3_Ransomware.UNOFFICIAL

Verdict:

Malicious

Score:

91.7%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a1982b433dfa243d40acdf6

Tags:

ransomware shellcode remo

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a file

Сreating synchronization primitives

Launching a service

Changing a file

Reading critical registry keys

Creating a file in the %AppData% directory

Creating a file in the %AppData% subdirectories

Moving a file to the %AppData% subdirectory

Modifies multiple files

Creating a file in the %temp% directory

Moving a file to the %temp% directory

Using the Windows Management Instrumentation requests

Creating a window

Searching for the window

Stealing user critical data

Creating a file in the mass storage device

Forced shutdown of a system process

Forced shutdown of a browser

Encrypting user's files

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/a397bea4c70bf3264348c88fca652fcbb2d421832672fa58a790af67bf419469

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-05-29T09:59:00Z UTC

Last seen:

2026-05-29T18:13:00Z UTC

Hits:

~10

Detections:

Trojan.Win32.Inject.sb Trojan-Ransom.Win32.Lockbit.tre Trojan.Win32.Zapchast.bgvs Trojan.Win32.Agent.sb Trojan-Ransom.Win32.Encoder.sb Trojan-Ransom.Win32.Agent.sb Trojan-Dropper.Win32.Dycler Trojan-Dropper.Win32.Dapato.sb HEUR:Trojan-Ransom.Win32.Generic

Link:

https://opentip.kaspersky.com/a397bea4c70bf3264348c88fca652fcbb2d421832672fa58a790af67bf419469/results?tab=lookup

Malware family:

BlackMatter Ransomware

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/f2bf2f29-5d57-4255-95fc-b623c2b45aed

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a397bea4c70bf3264348c88fca652fcbb2d421832672fa58a790af67bf419469

Gathering data

Detection:

lockbit

Link:

https://mwdb.cert.pl/sample/a397bea4c70bf3264348c88fca652fcbb2d421832672fa58a790af67bf419469/

Threat name:

Win32.Ransomware.Lockbit

Status:

Malicious

First seen:

2026-05-29 12:13:57 UTC

File Type:

PE (Exe)

AV detection:

33 of 36 (91.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=uol35jghbpzsmq2izch4uzjpzozniimdezzpuwfhscxwpp2bsruq._file

Verdict:

malicious

Label(s):

lockbit

Similar samples:

error

BlackMatter

Result

Malware family:

lockbit

Score:

10/10

Tags:

family:lockbit defense_evasion discovery ransomware spyware stealer

Link:

https://tria.ge/reports/260529-pdgwvsbs4w/

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 (1019) files with added filename extension

Unpacked files

SH256 hash:

a397bea4c70bf3264348c88fca652fcbb2d421832672fa58a790af67bf419469

MD5 hash:

c48fcaaba360883a8150ce3ac7f2a0bc

SHA1 hash:

34c4d32123e0ba10891c0e0d697637b9c534811d

Detections:

triage_blackmatter_ransomware

triage_lockbit3_ransomware

triage_lockbit_ransomware

Link:

https://www.unpac.me/results/3b32cd4c-2dd9-4fe7-b9a6-d2acc398791d/

Malware family:

LockBit

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a397bea4c70b/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/a397bea4c70bf3264348c88fca652fcbb2d421832672fa58a790af67bf419469

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:	Detect_all_IPv6_variants Create hunting rule
Author:	Bierchermuesli
Description:	Generic IPv6 catcher

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:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.