MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a17f22b67ecf9312bf59c8bb77445969bd6bbe61cf2b5ba98255f6cf30130d8c. 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: 19


Intelligence 19 IOCs YARA 6 File information Comments

SHA256 hash: a17f22b67ecf9312bf59c8bb77445969bd6bbe61cf2b5ba98255f6cf30130d8c
SHA3-384 hash: 3faa56b29d754919711a2aad5f7aaa1ae0225bfe810c709b9b9f2faecef3817fddc18a9f47b10b19d8cdee6fee3673e3
SHA1 hash: 1a3108ecb72ca0da0c04bd5c29caebee0ffd795d
MD5 hash: c6c371198124b086a547407a7d36fcc6
humanhash: lion-music-carbon-four
File name:a17f22b67ecf9312bf59c8bb77445969bd6bbe61cf2b5ba98255f6cf30130d8c
Download: download sample
Signature BlackMatter
File size:150'016 bytes
First seen:2025-03-18 15:30:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 914685b69f2ac2ff61b6b0f1883a054d (34 x BlackMatter, 15 x LockBit, 1 x BlackMatte)
ssdeep 1536:szICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDzp6HbSCkHdMBfusRDARJbWUyz:DqJogYkcSNm9V7Dzx19pODObWT
Threatray 242 similar samples on MalwareBazaar
TLSH T1FAE36C21F25ED0B3D47718F22726B17DB3EA4D2C0AA56847E6E40F48BCA49232F4595F
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 JAMESWT_WT
Tags:BlackMatter exe Ransomware SuperBlack

Intelligence


File Origin
# of uploads :
1
# of downloads :
674
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
lockbit
ID:
1
File name:
a17f22b67ecf9312bf59c8bb77445969bd6bbe61cf2b5ba98255f6cf30130d8c
Verdict:
Malicious activity
Analysis date:
2025-03-18 15:33:19 UTC
Tags:
stealer lockbit ransomware arch-scr

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
81.4%
Tags:
ransomware remo sage
Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Searching for the window
Creating a file
Stealing user critical data
Creating a file in the mass storage device
Forced shutdown of a browser
Encrypting user's files
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint packed packed packer_detected zeroaccess
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
BlackMatter Ransomware
Verdict:
Malicious
Result
Threat name:
LockBit ransomware
Detection:
malicious
Classification:
rans.phis.spyw.expl.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
Document exploit detected (process start blacklist hit)
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 detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Writes many files with high entropy
Writes to foreign memory regions
Yara detected LockBit ransomware
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1641949 Sample: G8g4QPv6gO.exe Startdate: 18/03/2025 Architecture: WINDOWS Score: 100 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 Antivirus / Scanner detection for submitted sample 2->46 48 6 other signatures 2->48 8 G8g4QPv6gO.exe 47 1002 2->8         started        12 ONENOTE.EXE 2->12         started        process3 file4 26 {D65231B0-B2F1-485...shell_exe.ni8pxbvnx, DOS 8->26 dropped 28 {7C5A40EF-A0FB-4BF...e_x64_exe.ni8pxbvnx, DOS 8->28 dropped 30 {1AC14E77-02E7-4E5...paint_exe.ni8pxbvnx, COM 8->30 dropped 32 148 other files (144 malicious) 8->32 dropped 50 Found potential ransomware demand text 8->50 52 Found Tor onion address 8->52 54 Contains functionality to detect hardware virtualization (CPUID execution measurement) 8->54 56 7 other signatures 8->56 14 498A.tmp 8->14         started        18 splwow64.exe 8->18         started        20 DWWIN.EXE 12->20         started        signatures5 process6 file7 34 C:\Users\user\Desktop\ZZZZZZZZZZZZZZ (copy), data 14->34 dropped 36 C:\Users\user\Desktop\YYYYYYYYYYYYYY (copy), data 14->36 dropped 38 C:\Users\user\Desktop\XXXXXXXXXXXXXX (copy), data 14->38 dropped 40 24 other malicious files 14->40 dropped 58 Contains functionality to detect hardware virtualization (CPUID execution measurement) 14->58 60 Writes many files with high entropy 14->60 62 Hides threads from debuggers 14->62 64 Deletes itself after installation 14->64 22 cmd.exe 14->22         started        signatures8 process9 process10 24 conhost.exe 22->24         started       
Threat name:
Win32.Ransomware.Lockbit
Status:
Malicious
First seen:
2025-01-28 07:24:24 UTC
File Type:
PE (Exe)
AV detection:
31 of 34 (91.18%)
Threat level:
  5/5
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
Loads dropped DLL
Reads user/profile data of web browsers
Renames multiple (339) files with added filename extension
Verdict:
Malicious
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:
a17f22b67ecf9312bf59c8bb77445969bd6bbe61cf2b5ba98255f6cf30130d8c
MD5 hash:
c6c371198124b086a547407a7d36fcc6
SHA1 hash:
1a3108ecb72ca0da0c04bd5c29caebee0ffd795d
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.

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::GetCommandLineW
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::GetFileAttributesW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::CreateWindowExW

Comments