MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 83600bb9bb3eba4ca5d64a300bcdb8bc9c988570f5acdb6aecae77f4f75d2e68. 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: | 83600bb9bb3eba4ca5d64a300bcdb8bc9c988570f5acdb6aecae77f4f75d2e68 |
|---|---|
| SHA3-384 hash: | b80639d9a180857eade79a24f49f9cc33e27b62e0b3cef43acb378e7c4fed9d306b707aa2e5f49a9b7a46c78465952a2 |
| SHA1 hash: | a9c78679a7effe14bac6b0fe440af504c50d7d1f |
| MD5 hash: | 9251dd806a703d4a6b388e504e5020f3 |
| humanhash: | carpet-snake-bluebird-crazy |
| File name: | 83600bb9bb3eba4ca5d64a300bcdb8bc9c988570f5acdb6aecae77f4f75d2e68 |
| Download: | download sample |
| Signature | BlackMatter |
| File size: | 164'249 bytes |
| First seen: | 2024-05-25 01:17:32 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 3bc510de773c954bd69d33670cb624d6 (11 x BlackMatter, 3 x LockBit) |
| ssdeep | 3072:kDDDDDDDDDDDDDDDDDDDE45d/t6sVkgZqltP33682wa9h+f2s9L6AsW:m5d/zugZqll3a5OB9L6 |
| Threatray | 173 similar samples on MalwareBazaar |
| TLSH | T1FFF37D21B112D537CA6634F5A729B3B0738A5E2C13A86463FAE4CF4B35B38236F15947 |
| 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 :
1
# of downloads :
536
Origin country :
BRVendor Threat Intelligence
Malware family:
lockbit
ID:
1
File name:
83600bb9bb3eba4ca5d64a300bcdb8bc9c988570f5acdb6aecae77f4f75d2e68.exe
Verdict:
Malicious activity
Analysis date:
2024-05-25 01:19:05 UTC
Tags:
lockbit ransomware
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Verdict:
Malicious
Score:
93.3%
Link:
Tags:
Encryption Ransomware Stealth
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file
Сreating synchronization primitives
Launching a service
Changing a file
Creating a window
Moving a recently created file
Using the Windows Management Instrumentation requests
Delayed writing of the file
Reading critical registry keys
Unauthorized injection to a recently created process
Creating a process from a recently created file
Replacing files
Sending a UDP request
Modifying an executable file
Stealing user critical data
Creating a file in the mass storage device
Forced shutdown of a system process
Moving of the original file
Forced shutdown of a browser
Encrypting user's files
Verdict:
Malicious
Labled as:
Ransom.Lockbit.Generic
Malware family:
BlackMatter Ransomware
Verdict:
Malicious
Result
Threat name:
LockBit ransomware
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Signature
AI detected suspicious sample
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
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:
2024-05-25 01:18:05 UTC
File Type:
PE (Exe)
AV detection:
22 of 24 (91.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 163 additional samples on MalwareBazaar
Result
Malware family:
lockbit
Score:
10/10
Tags:
family:lockbit ransomware
Behaviour
Modifies Control Panel
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops desktop.ini file(s)
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Renames multiple (127) files with added filename extension
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
83600bb9bb3eba4ca5d64a300bcdb8bc9c988570f5acdb6aecae77f4f75d2e68
MD5 hash:
9251dd806a703d4a6b388e504e5020f3
SHA1 hash:
a9c78679a7effe14bac6b0fe440af504c50d7d1f
Detections:
win_lockbit_auto
Darkside
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Lockbit
Score:
1.00
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_0001 |
|---|---|
| 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_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_apihashing_code_100 |
|---|---|
| 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_0001 |
|---|---|
| Author: | CTI Purple Team |
| Description: | This rule detects the code pattern of the Stack Strings decryption algorithm. |
| 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: | lb_stack_string_decrypt_100 |
|---|---|
| Author: | CTI Purple Team |
| Description: | This rule detects the code pattern of the Stack Strings decryption algorithm. |
| 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
| 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::LoadLibraryW KERNEL32.dll::GetCommandLineA |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::GetFileAttributesW |
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