MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c394e1673274a8d0861ed637c425de244ead5f8ffbc7cb84862d9b81ec884505. 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: 20


Intelligence 20 IOCs YARA 6 File information Comments

SHA256 hash: c394e1673274a8d0861ed637c425de244ead5f8ffbc7cb84862d9b81ec884505
SHA3-384 hash: 2569ad5d96e00d2de24defe864d4fa01a8e94069c3498c0aae92c8f6e39d97d32b36982de71ecf4b7ca5b79364e170fa
SHA1 hash: 114577ce6270fde6ed9dbc782484bfa36766baed
MD5 hash: 337559ae1b02b42586781787918b4b6c
humanhash: violet-illinois-equal-muppet
File name:WellPlayed.exe
Download: download sample
Signature BlackMatter
File size:148'480 bytes
First seen:2024-07-20 14:02:14 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 3072:uqJogYkcSNm9V7D/Lwi7Z2ncxMN9vMWT:uq2kc4m9tDTwi7Z2cF
Threatray 188 similar samples on MalwareBazaar
TLSH T106E36C21F25ED0B3D47718F12726B17DB3EA4D2C0A6A6803EAE50F487CA59232F4595F
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 Anonymous
Tags:BlackMatter exe lockbit ransomware

Intelligence


File Origin
# of uploads :
1
# of downloads :
490
Origin country :
JP JP
Vendor Threat Intelligence
Malware family:
lockbit
ID:
1
File name:
WellPlayed.exe
Verdict:
Malicious activity
Analysis date:
2024-07-20 17:08:30 UTC
Tags:
lockbit ransomware stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
91.7%
Tags:
Execution Generic Other Ransomware Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Сreating synchronization primitives
Launching a service
Creating a window
Changing a file
Moving a recently created 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
Moving a file to the %temp% directory
Stealing user critical data
Creating a file in the mass storage device
Forced shutdown of a browser
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint packed
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.evad
Score:
100 / 100
Signature
AI detected suspicious sample
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 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)
Multi AV Scanner detection for domain / URL
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: 1477227 Sample: WellPlayed.exe Startdate: 20/07/2024 Architecture: WINDOWS Score: 100 40 Multi AV Scanner detection for domain / URL 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus detection for URL or domain 2->44 46 6 other signatures 2->46 8 WellPlayed.exe 32 1002 2->8         started        12 ONENOTE.EXE 2->12         started        process3 file4 24 C:\Users\user\AppData\...\LdOULQx.txdM9F1WD, DOS 8->24 dropped 26 C:\Users\jones\AppData\...\uShQfFU.txdM9F1WD, DOS 8->26 dropped 28 C:\Users\jones\AppData\...\h7X0ufg.txdM9F1WD, DOS 8->28 dropped 30 125 other files (122 malicious) 8->30 dropped 48 Found potential ransomware demand text 8->48 50 Found Tor onion address 8->50 52 Contains functionality to detect hardware virtualization (CPUID execution measurement) 8->52 54 6 other signatures 8->54 14 5387.tmp 8->14         started        18 splwow64.exe 8->18         started        signatures5 process6 file7 32 C:\Users\user\Desktop\ZZZZZZZZZZZZZZ (copy), data 14->32 dropped 34 C:\Users\user\Desktop\YYYYYYYYYYYYYY (copy), data 14->34 dropped 36 C:\Users\user\Desktop\XXXXXXXXXXXXXX (copy), data 14->36 dropped 38 24 other malicious files 14->38 dropped 56 Contains functionality to detect hardware virtualization (CPUID execution measurement) 14->56 58 Writes many files with high entropy 14->58 60 Hides threads from debuggers 14->60 62 Deletes itself after installation 14->62 20 cmd.exe 14->20         started        signatures8 process9 process10 22 conhost.exe 20->22         started       
Threat name:
Win32.Ransomware.Lockbit
Status:
Malicious
First seen:
2024-07-20 14:03:05 UTC
File Type:
PE (Exe)
AV detection:
33 of 38 (86.84%)
Threat level:
  5/5
Result
Malware family:
lockbit
Score:
  10/10
Tags:
family:lockbit 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
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
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
c394e1673274a8d0861ed637c425de244ead5f8ffbc7cb84862d9b81ec884505
MD5 hash:
337559ae1b02b42586781787918b4b6c
SHA1 hash:
114577ce6270fde6ed9dbc782484bfa36766baed
Detections:
win_lockbit_auto Darkside
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: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
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

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