MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 315d043b99f988ce9d9f69d7225292eb44623a97c1a029933b62ede699fa9f13. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 315d043b99f988ce9d9f69d7225292eb44623a97c1a029933b62ede699fa9f13
SHA3-384 hash: a3b5d252f731f2d67bb270a43160bd5179a5a2a62b76b50f0c51fb85cb648bf3ba0b0a2d3af93f9e2872f21e743ae924
SHA1 hash: 73c346267e9527ca5886bf8a90b77f9ebceb58fe
MD5 hash: 6edfb62405f50d7fb16882ca9b16ed36
humanhash: lake-quebec-friend-rugby
File name:zbi.exe
Download: download sample
Signature LockBit
Create hunting rule
File size:149'504 bytes
First seen:2024-08-16 15:39:03 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:PqJogYkcSNm9V7DGoNK696RTpfnEsCygHQlyT:Pq2kc4m9tDHNK6UlJ9CyN
TLSH T121E36C21F25ED0B3C47718F12726B17EB3EA4D2C1AA56843E6E50F48BCA49232F4595F
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 NDA0E
Tags:BlackMatter DarkSide exe lockbit

Intelligence

File Origin
# of uploads :
1
# of downloads :
606
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
lockbit
Create hunting rule
ID:
1
File name:
zbi.exe
Verdict:
Malicious activity
Analysis date:
2024-08-16 15:40:00 UTC
Tags:
ransomware stealer lockbit
Link:
https://app.any.run/tasks/b2f7267a-ad04-41da-9b31-bda725898c72

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

Win.Ransomware.Lazy-10003135-0
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66bf7298aa5b40be0aa04bfb
Tags:
Execution Exploit Generic Network Other Ransomware Stealth Zeroaccess
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/315d043b99f988ce9d9f69d7225292eb44623a97c1a029933b62ede699fa9f13
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/a057e111-4e13-47ec-8b9c-96329c54d511
Result
Threat name:
Conti, LockBit ransomware
Create hunting rule
Detection:
malicious
Classification:
rans.phis.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1493942
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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)
May modify the system service descriptor table (often done to hook functions)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
Overwrites Mozilla Firefox settings
Tries to harvest and steal browser information (history, passwords, etc)
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Writes to foreign memory regions
Yara detected Conti ransomware
Yara detected LockBit ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1493942 Sample: zbi.exe Startdate: 16/08/2024 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 7 other signatures 2->46 8 zbi.exe 30 1002 2->8         started        12 ONENOTE.EXE 2->12         started        process3 file4 24 1696333857860.a739...t.jsonlz4.raMFGAusF, COM 8->24 dropped 26 C:\...\Microsoft_Windows_Computer.raMFGAusF, COM 8->26 dropped 28 C:\Users\user\AppData\...\data_1.raMFGAusF, DOS 8->28 dropped 30 217 other files (213 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 D2EE.tmp 8->14         started        18 splwow64.exe 8->18         started        signatures5 process6 file7 32 C:\Users\user\Desktop\zbi.exe, data 14->32 dropped 34 C:\Users\user\Desktop\ZZZZZZZ (copy), data 14->34 dropped 36 C:\Users\user\Desktop\YYYYYYY (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       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/315d043b99f988ce9d9f69d7225292eb44623a97c1a029933b62ede699fa9f13
Detection:
lockbit
Create hunting rule
Link:
https://mwdb.cert.pl/sample/315d043b99f988ce9d9f69d7225292eb44623a97c1a029933b62ede699fa9f13/
Threat name:
Win32.Ransomware.Lockbit
Create hunting rule
Status:
Malicious
First seen:
2024-08-16 03:25:47 UTC
File Type:
PE (Exe)
AV detection:
33 of 38 (86.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gfoqio4z7gem5hm7nhlseuus5ncgeouxygqctez3mlw6ngp2t4jq._file
Verdict:
malicious
Result
Malware family:
lockbit
Create hunting rule
Score:
  10/10
Tags:
family:lockbit defense_evasion discovery ransomware spyware stealer
Link:
https://tria.ge/reports/240816-s3nbqasfka/
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
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops desktop.ini file(s)
Indicator Removal: File Deletion
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Renames multiple (376) files with added filename extension
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/5de1f2a6-4430-468b-a3bf-bbbad10d5f23
Unpacked files
SH256 hash:
315d043b99f988ce9d9f69d7225292eb44623a97c1a029933b62ede699fa9f13
MD5 hash:
6edfb62405f50d7fb16882ca9b16ed36
SHA1 hash:
73c346267e9527ca5886bf8a90b77f9ebceb58fe
Detections:
win_lockbit_auto
Create hunting rule
Darkside
Create hunting rule
Link:
https://www.unpac.me/results/f9771e40-a7d7-4375-b9dd-280aa0d77c9e/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/315d043b99f9/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Lockbit
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/315d043b99f988ce9d9f69d7225292eb44623a97c1a029933b62ede699fa9f13

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:lb_apihashing_code_1
Create hunting rule
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
Create hunting rule
Author:CTI Purple Team
Description:This rule detects the code pattern of the Stack Strings decryption algorithm.
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.

Web download

LockBit

Executable exe 315d043b99f988ce9d9f69d7225292eb44623a97c1a029933b62ede699fa9f13

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3076564/

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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