MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b
SHA3-384 hash: 7ba2d62600f1d52c5fb1a95592436cd5e90dc633e94c5e34c24d67a85313169f93071aee963a23b2a1f92f9f4c0e0c06
SHA1 hash: 7b829bb5a8f4e4e503c16864330c17cb7996ee2b
MD5 hash: 922dea2c04ec79d24a7ecc3edb6b36c7
humanhash: indigo-wolfram-robin-wolfram
File name:LB3.exe
Download: download sample
Signature BlackMatter
Create hunting rule
File size:148'992 bytes
First seen:2023-03-26 03:51:39 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:HzICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDEpOFNPslzvMYFzdT1cg6bjtx0V:4qJogYkcSNm9V7DWOXezUMzdTixD3kT
Threatray 25 similar samples on MalwareBazaar
TLSH T163E36B21F15ED0B3C87718F12736B17DB3AA4D2C0AA67803EAD90F49ACA59232F4555F
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 exe lockbit

Intelligence

File Origin
# of uploads :
1
# of downloads :
931
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
LB3.rar
Verdict:
Malicious activity
Analysis date:
2023-03-23 11:31:22 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/0cbc83b1-c51a-4ca2-8090-ae679f06f4b9

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/377503/
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
filecoder lockbit packed qadars ransomware windows zeroaccess
Link:
https://www.filescan.io/uploads/641fc1649c109cf74b2faf04/reports/df9f8f9b-1fea-4aa3-a25d-8e3c33c62b0a/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b
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/0f5bb873-165e-4153-bbbc-81c8340f3e77
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1202034
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Deletes itself after installation
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 834939 Sample: LB3.exe Startdate: 26/03/2023 Architecture: WINDOWS Score: 100 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus / Scanner detection for submitted sample 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Machine Learning detection for sample 2->42 8 LB3.exe 20 501 2->8         started        process3 file4 20 C:\Users\user\Desktop\QkEtXX8.30AqZ5JVE, COM 8->20 dropped 22 C:\Users\user\AppData\...\ewJbdG1.30AqZ5JVE, DOS 8->22 dropped 24 C:\Users\user\AppData\...\QGHE8YR.30AqZ5JVE, DOS 8->24 dropped 26 51 other malicious files 8->26 dropped 44 Contains functionality to detect hardware virtualization (CPUID execution measurement) 8->44 46 Writes to foreign memory regions 8->46 48 Writes many files with high entropy 8->48 50 Modifies existing user documents (likely ransomware behavior) 8->50 12 6AF3.tmp 1 8->12         started        signatures5 process6 file7 28 C:\Users\user\Desktop\ZZZZZZZ (copy), data 12->28 dropped 30 C:\Users\user\Desktop\YYYYYYY (copy), data 12->30 dropped 32 C:\Users\user\Desktop\XXXXXXX (copy), data 12->32 dropped 34 24 other malicious files 12->34 dropped 52 Antivirus detection for dropped file 12->52 54 Multi AV Scanner detection for dropped file 12->54 56 Contains functionality to detect hardware virtualization (CPUID execution measurement) 12->56 58 3 other signatures 12->58 16 cmd.exe 1 12->16         started        signatures8 process9 process10 18 conhost.exe 16->18         started       
Detection:
lockbit
Create hunting rule
Link:
https://mwdb.cert.pl/sample/99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b/
Threat name:
Win32.Ransomware.Lockbit
Create hunting rule
Status:
Malicious
First seen:
2022-12-27 02:09:31 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=thjqapgfo7bwgw6lxcbwgqbxi2ntlq5rumiqtxaukyalwhtihvfq._file
Verdict:
malicious
Similar samples:
160c97289764c37afe1a11f72537e95843a9c37a9c5fa02e1046f6b002315021
BlackMatter
367f5b45da98215ff297e0856e4a961c9e831e4f06457f16453f60d0cf407449
BlackMatter
50fad26d726e0af6dbed3225267934ae9ef22b31e48fc623ce93ba582a7e6110
BlackMatter
6375e7e4c7cdc3f96afd991c4dfedd5cdfe4b31bf0662dccfa703c117e951f71
BlackMatter
7eea0bf98a5142c544fac25063a28f39079468206898fa043dd31e83c1b450fb
BlackMatter
e80b293b0cecb5265f2a6cc592ee11fea28c3d008fa883781aca1da3f09140b1
BlackMatter
f41abd588cef0ed3e46f91c73014cc17327200fb41ce2deafaacde023fedfe01
BlackMatter
f7caf7d69cef15d5c3b9983513e4e40edc3a31c5ead4139bc41d1500442a966a
BlackMatter
+ 15 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/230326-ee3jvahd4t/
Behaviour
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
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:
99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b
MD5 hash:
922dea2c04ec79d24a7ecc3edb6b36c7
SHA1 hash:
7b829bb5a8f4e4e503c16864330c17cb7996ee2b
Detections:
win_lockbit_auto
Create hunting rule
Link:
https://www.unpac.me/results/39f318d8-7abf-4baf-bcb0-c00376a3b306/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/99d3003cc577/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/99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b

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/377503/

Comments


Avatar
petikvx commented on 2023-03-26 03:52:02 UTC

decryptor : https://bazaar.abuse.ch/sample/82f27070eeed223bcc645b1ae47aa9309ef353c1cf5b79141b712ab36e5c55ba/