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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8fe7e11f97a293db5fda072cc9e64a161c76ababd37754acce5ccd6dfa30d1c. 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


LockBit


Vendor detections: 11


Intelligence 11 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8fe7e11f97a293db5fda072cc9e64a161c76ababd37754acce5ccd6dfa30d1c
SHA3-384 hash: a9486932f8a76b499f63970bf4eea6f5871ff07067f4c2b23ba909b60f9960943ab322f521ac92b4e6cf4d131130c071
SHA1 hash: 258a6ea8a43e98653e4e7095dbc2ddf6b8a196e5
MD5 hash: 3caa52bf3388a5a37efe69ef1ff8055e
humanhash: pennsylvania-august-seventeen-hot
File name:202305173caa52bf3388a5a37efe69ef1ff8055edarkside
Download: download sample
Signature LockBit
Create hunting rule
File size:149'504 bytes
First seen:2023-05-18 13:46:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 914685b69f2ac2ff61b6b0f1883a054d (36 x BlackMatter, 16 x LockBit, 1 x BlackMatte)
ssdeep 3072:HqJogYkcSNm9V7DEqkByaf4I2jH4sT6T:Hq2kc4m9tDERBl76H4sT
TLSH T17AE37C21F15ED0B3C47718F22726B17DB3EA4D2C0AA56803EAD50F88BCA59632F4595F
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) (4505/5/1)
7.8% (.EXE) Win16/32 Executable Delphi generic (2072/23)
7.8% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter JaffaCakes118
Tags:lockbit

Intelligence

File Origin
# of uploads :
1
# of downloads :
402
Origin country :
GB GB
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
202305173caa52bf3388a5a37efe69ef1ff8055edarkside
Verdict:
Malicious activity
Analysis date:
2023-05-18 14:28:59 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/4b834380-d219-4408-abe9-8cda508d5aef

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Ransomware.BlackMatter-9970818-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Launching a service
Using the Windows Management Instrumentation requests
Changing a file
Creating 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
Creating a file in the %temp% directory
Moving a file to the %temp% directory
Stealing user critical data
Forced shutdown of a browser
Encrypting user's files
Gathering data
Verdict:
Malicious
Labled as:
Mint.Zard.Generic
Link:
https://www.hybrid-analysis.com/sample/a8fe7e11f97a293db5fda072cc9e64a161c76ababd37754acce5ccd6dfa30d1c
Malware family:
BlackMatter Ransomware
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ba069771-aef6-4c8c-839d-e661f78f5acf
Result
Threat name:
LockBit ransomware, TrojanRansom
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1236716
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Deletes itself after installation
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 submitted 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
Yara detected TrojanRansom
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 869713 Sample: D6yj7N65Cn.exe Startdate: 19/05/2023 Architecture: WINDOWS Score: 100 40 Malicious sample detected (through community Yara rule) 2->40 42 Antivirus detection for URL or domain 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 46 6 other signatures 2->46 8 D6yj7N65Cn.exe 23 502 2->8         started        12 ONENOTE.EXE 28 343 2->12         started        process3 file4 24 C:\XHv8ix3OM.README.txt, Unknown 8->24 dropped 26 C:\Users\user\...\Outlook.pst.XHv8ix3OM, Unknown 8->26 dropped 28 C:\...\~DFAD66C390CC7AE93E.TMP.XHv8ix3OM, Unknown 8->28 dropped 30 51 other malicious files 8->30 dropped 48 Contains functionality to detect hardware virtualization (CPUID execution measurement) 8->48 50 Writes a notice file (html or txt) to demand a ransom 8->50 52 Writes to foreign memory regions 8->52 54 2 other signatures 8->54 14 6790.tmp 1 8->14         started        18 splwow64.exe 1 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 Antivirus detection for dropped file 14->56 58 Contains functionality to detect hardware virtualization (CPUID execution measurement) 14->58 60 Writes many files with high entropy 14->60 62 2 other signatures 14->62 20 cmd.exe 14->20         started        signatures8 process9 process10 22 conhost.exe 20->22         started       
Detection:
lockbit
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a8fe7e11f97a293db5fda072cc9e64a161c76ababd37754acce5ccd6dfa30d1c/
Threat name:
Win32.Ransomware.Lockbit
Create hunting rule
Status:
Malicious
First seen:
2023-05-17 04:49:00 UTC
File Type:
PE (Exe)
AV detection:
32 of 37 (86.49%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vd7h4epzpiut3np5ubzmzhteufq4o2v2xu3xkswm4xgnnx5dbuoa._file
Result
Malware family:
lockbit
Create hunting rule
Score:
  10/10
Tags:
family:lockbit ransomware spyware stealer
Link:
https://tria.ge/reports/230518-q3ptfaae7v/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Enumerates physical storage devices
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops desktop.ini file(s)
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Modifies extensions of user files
Renames multiple (310) files with added filename extension
Renames multiple (568) files with added filename extension
Unpacked files
SH256 hash:
a8fe7e11f97a293db5fda072cc9e64a161c76ababd37754acce5ccd6dfa30d1c
MD5 hash:
3caa52bf3388a5a37efe69ef1ff8055e
SHA1 hash:
258a6ea8a43e98653e4e7095dbc2ddf6b8a196e5
Link:
https://www.unpac.me/results/4172e949-f249-4530-96df-f3fa4ce71fb7/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.76
Link:
https://yomi.yoroi.company/submissions/a8fe7e11f97a293db5fda072cc9e64a161c76ababd37754acce5ccd6dfa30d1c

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:Windows_Ransomware_Lockbit_369e1e94
Create hunting rule
Author:Elastic Security

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Comments