MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4e6458202485c44a34b185d00d707477890456cecc4869338d93e0badce485a. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4e6458202485c44a34b185d00d707477890456cecc4869338d93e0badce485a
SHA3-384 hash: 5464bc1408a72cddd13b2ab90ee01af49d2d5a09a046bcdeaa1598599d3f51a4bb1e4b394a37eb14cdebbc65da249377
SHA1 hash: cd03783313595a54229207ad338da3ea6939615a
MD5 hash: 8b1ad2d4fba08274a242dc655d7aa6cf
humanhash: sink-edward-yankee-orange
File name:2023-04-13_8b1ad2d4fba08274a242dc655d7aa6cf_darkside
Download: download sample
Signature BlackMatter
Create hunting rule
File size:149'504 bytes
First seen:2023-04-14 02:52:25 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+1zGSNAojMP95D1xDiZq3nLpzhjtvq1LgY6phW+sKMo:xqJogYkcSNm9V7DiZmLBOLOpstStT
Threatray 49 similar samples on MalwareBazaar
TLSH T182E36B21F15ED0B3D86718F12736A17DB3EA4D2C0A657807EAE90F48BCA49232F4555F
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 petikvx
Tags:BlackMatter

Intelligence

File Origin
# of uploads :
1
# of downloads :
174
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2023-04-13_8b1ad2d4fba08274a242dc655d7aa6cf_darkside
Verdict:
Malicious activity
Analysis date:
2023-04-14 02:54:30 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/c51fb4a1-d671-4b1f-a49a-18d5ff71cbd2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/382115/
Detection(s):
Win.Ransomware.BlackMatter-9970818-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file
Сreating synchronization primitives
Launching a service
Using the Windows Management Instrumentation requests
Changing a file
Creating a window
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
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
packed
Link:
https://www.filescan.io/uploads/6438c0150c9f1744b585f48f/reports/bc7603f8-9dd1-44a9-97f7-86a546900e55/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b4e6458202485c44a34b185d00d707477890456cecc4869338d93e0badce485a
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8305f4c2-88e7-4e4d-859b-d60e9819a510
Result
Threat name:
LockBit ransomware
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1213597
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 dropped file
Multi AV Scanner detection for submitted file
Writes many files with high entropy
Writes to foreign memory regions
Yara detected LockBit ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 846525 Sample: SsxNuRK4FY.exe Startdate: 14/04/2023 Architecture: WINDOWS Score: 100 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 55 Antivirus / Scanner detection for submitted sample 2->55 57 5 other signatures 2->57 8 SsxNuRK4FY.exe 22 502 2->8         started        12 ONENOTE.EXE 30 347 2->12         started        process3 dnsIp4 25 C:\Users\user\...\DQOFHVHTMG.xlsx.0pvYBPWtB, COM 8->25 dropped 27 C:\Users\user\...\4618732626.0pvYBPWtB, DOS 8->27 dropped 29 0.2.filtertrie.int...diate.txt.0pvYBPWtB, DOS 8->29 dropped 31 62 other malicious files 8->31 dropped 59 Contains functionality to detect hardware virtualization (CPUID execution measurement) 8->59 61 Writes to foreign memory regions 8->61 63 Writes many files with high entropy 8->63 65 Modifies existing user documents (likely ransomware behavior) 8->65 15 7F9D.tmp 1 8->15         started        19 splwow64.exe 1 8->19         started        41 192.168.2.1 unknown unknown 12->41 file5 signatures6 process7 file8 33 C:\Users\user\Desktop\ZZZZZZZZZZZZZZ (copy), data 15->33 dropped 35 C:\Users\user\Desktop\YYYYYYYYYYYYYY (copy), data 15->35 dropped 37 C:\Users\user\Desktop\XXXXXXXXXXXXXX (copy), data 15->37 dropped 39 24 other malicious files 15->39 dropped 43 Antivirus detection for dropped file 15->43 45 Multi AV Scanner detection for dropped file 15->45 47 Contains functionality to detect hardware virtualization (CPUID execution measurement) 15->47 49 3 other signatures 15->49 21 cmd.exe 15->21         started        signatures9 process10 process11 23 conhost.exe 21->23         started       
Detection:
lockbit
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4e6458202485c44a34b185d00d707477890456cecc4869338d93e0badce485a/
Threat name:
Win32.Ransomware.Lockbit
Create hunting rule
Status:
Malicious
First seen:
2023-04-12 20:12:25 UTC
File Type:
PE (Exe)
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wttelaqcjboeji2ldboqbvyhi54jarlm5tcinezy3e7axloojbna._file
Verdict:
malicious
Similar samples:
0e9f24d9b122f16a0817890872ab88e91cfddeaf1bac8a1e41a724f5eadd9ad5
BlackMatter
2829c9ce2041e1694f1bd55efc1d1096ade843da8fb6665b92c3c21efa538642
BlackMatter
3546926360ce335048cccdcd09ac261e37343d32e1c55d1c33207452b12972cc
BlackMatter
4110ad75016f47236031c552c464d259b301e6ce07c462961fb2d7d6fc976ca8
BlackMatter
7eea0bf98a5142c544fac25063a28f39079468206898fa043dd31e83c1b450fb
BlackMatter
99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b
BlackMatter
a35c3274a726b27cbcef5abe3f28d8f9675a30883490d37f23b4d730d72eca42
BlackMatter
ab14946e5c64f18b74701ef15fef5db8ec4f61c43e7032e0493645c932777eb1
BlackMatter
f41abd588cef0ed3e46f91c73014cc17327200fb41ce2deafaacde023fedfe01
BlackMatter
+ 39 additional samples on MalwareBazaar
Result
Malware family:
lockbit
Create hunting rule
Score:
  10/10
Tags:
family:lockbit ransomware spyware stealer
Link:
https://tria.ge/reports/230414-ddbjashb5v/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies registry class
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
Unpacked files
SH256 hash:
b4e6458202485c44a34b185d00d707477890456cecc4869338d93e0badce485a
MD5 hash:
8b1ad2d4fba08274a242dc655d7aa6cf
SHA1 hash:
cd03783313595a54229207ad338da3ea6939615a
Link:
https://www.unpac.me/results/4f8834aa-43ed-4716-9eaa-e0717ecc6585/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b4e645820248/report/overview.html
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/b4e6458202485c44a34b185d00d707477890456cecc4869338d93e0badce485a

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
Rule name:win_lockbit_auto
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/382115/

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