MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 251297b055aa4decdab1a1d8e14ea1331bcbe00974515a647f55b0e0c23e29f5. 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
| SHA256 hash: | 251297b055aa4decdab1a1d8e14ea1331bcbe00974515a647f55b0e0c23e29f5 |
|---|---|
| SHA3-384 hash: | 65fa2af3560a59fbc09fdda9520c113942882c776cbce5971dcc657dcc3a2db8be65159c531218cc3408aedec9c005df |
| SHA1 hash: | 1f582c3ba3157202357d11a5a5ede3a383d10d79 |
| MD5 hash: | a40bbbdc17f188eb906dc09cb0556bc6 |
| humanhash: | foxtrot-dakota-carpet-harry |
| File name: | LB3.exe |
| Download: | download sample |
| Signature | BlackMatter |
| File size: | 157'184 bytes |
| First seen: | 2025-04-16 13:53:54 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 914685b69f2ac2ff61b6b0f1883a054d (38 x BlackMatter, 16 x LockBit, 1 x BlackMatte) |
| ssdeep | 3072:UqJogYkcSNm9V7DNMcdmiyZkjIVXlf3T:Uq2kc4m9tDvmiyZkju |
| Threatray | 251 similar samples on MalwareBazaar |
| TLSH | T107E38C21B15ED0B3C47718F22726B17EB3EA4D2C1AA67847E6D50F48BCA48232F4595F |
| 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 |  rev0x1337 |
| Tags: | BlackMatter exe lockbit |
Intelligence
File Origin
# of uploads :
1
# of downloads :
718
Origin country :
RUVendor Threat Intelligence
Malware family:
lockbit
ID:
1
File name:
LB3.exe
Verdict:
Malicious activity
Analysis date:
2025-04-09 16:00:32 UTC
Tags:
ransomware stealer lockbit
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
70%
Tags:
ransomware crypt remo
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Сreating synchronization primitives
Launching a service
Creating a window
Changing a file
Delayed writing of the 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
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Stealing user critical data
Creating a file in the mass storage device
Forced shutdown of a browser
Encrypting user's files
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
blackmatter filecoder fingerprint lockbit packed packed packer_detected ransomware zeroaccess
Verdict:
Malicious
Labled as:
Trojan.Generic
Malware family:
BlackMatter Ransomware
Verdict:
Malicious
Result
Threat name:
LockBit ransomware
Detection:
malicious
Classification:
rans.phis.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
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
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
Overwrites Mozilla Firefox settings
Tries to harvest and steal browser information (history, passwords, etc)
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:
Score:
100%
Verdict:
Malware
File Type:
PE
Detection:
lockbit
Threat name:
Win32.Ransomware.Lockbit
Status:
Malicious
First seen:
2025-04-09 16:00:32 UTC
File Type:
PE (Exe)
AV detection:
24 of 24 (100.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
lockbit
Similar samples:
+ 241 additional samples on MalwareBazaar
Result
Malware family:
lockbit
Score:
10/10
Tags:
family:lockbit defense_evasion discovery ransomware spyware stealer
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)
Indicator Removal: File Deletion
Checks computer location settings
Deletes itself
Executes dropped EXE
Reads user/profile data of web browsers
Renames multiple (688) files with added filename extension
Lockbit
Lockbit family
Verdict:
Suspicious
Tags:
ransomware lockbit Win.Ransomware.BlackMatter-9970818-0
YARA:
Windows_Ransomware_Lockbit_369e1e94 LockBit3 MAL_RANSOM_Lockbit_Indicators_Feb24 MAL_RANSOM_LockBit_Indicators_Feb24_RID3362
Unpacked files
SH256 hash:
251297b055aa4decdab1a1d8e14ea1331bcbe00974515a647f55b0e0c23e29f5
MD5 hash:
a40bbbdc17f188eb906dc09cb0556bc6
SHA1 hash:
1f582c3ba3157202357d11a5a5ede3a383d10d79
Verdict:
Malicious
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: | lb_apihashing_code_1 |
|---|---|
| Author: | 0x0d4y |
| Description: | This rule detects samples from the Lockbit3.0 (and BlackMatter) family unpacked in memory, identifying code reuse of key functions. |
| Rule name: | lb_stack_string_decrypt_1 |
|---|---|
| Author: | CTI Purple Team |
| Description: | This rule detects the code pattern of the Stack Strings decryption algorithm. |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
| Rule name: | Windows_Ransomware_Lockbit_369e1e94 |
|---|---|
| Author: | Elastic Security |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Dropping
Ransomware
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 |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::GetCommandLineW KERNEL32.dll::GetCommandLineA |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::GetFileAttributesW |
| WIN_USER_API | Performs GUI Actions | USER32.dll::CreateWindowExW |
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