MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 771a06e3a1bdb42a7249d1c888e740c2bc46ba30b54490188c17f6c84ca96e26. 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: 16


Intelligence 16 IOCs YARA 6 File information Comments
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SHA256 hash: 771a06e3a1bdb42a7249d1c888e740c2bc46ba30b54490188c17f6c84ca96e26
SHA3-384 hash: 7492f3464cfa225bc794e2bd596a2e92f53d6ed792e955968a48ef1ba19fa964bdb7d97ab2950ddb54a868842bd0d3e4
SHA1 hash: 9e89522cd7de71b2ad66383c88ec55e2c5039166
MD5 hash: b5e16816fc5d4c12227dcc663f83bd87
humanhash: artist-south-arkansas-arizona
File name:rns1.exe
Download: download sample
Signature LockBit
Create hunting rule
File size:151'552 bytes
First seen:2025-05-08 06:50:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 914685b69f2ac2ff61b6b0f1883a054d (35 x BlackMatter, 16 x LockBit, 1 x BlackMatte)
ssdeep 3072:oqJogYkcSNm9V7Dbhz3/xQMKukzXluQLT:oq2kc4m9tDJp3KukzX
TLSH T1D9E36B21F15ED0B3D47718F22726B17DB3EA4D2C1AA56843E6D90F88BCA49232F4591F
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)
Magika pebin
Reporter adm1n_usa32
Tags:exe lockbit Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
784
Origin country :
US US
Vendor Threat Intelligence
Detection(s):
Win.Ransomware.BlackMatter-9970818-0
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Win.Ransomware.Lazy-10003135-0
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Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=681c54cc6c95617a27b5f64c
Tags:
ransomware remo blic
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Сreating synchronization primitives
Launching a service
Changing a file
Delayed writing of the 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
Stealing user critical data
Creating a file in the mass storage device
Forced shutdown of a browser
Encrypting user's files
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint packed packed packer_detected zeroaccess
Link:
https://www.filescan.io/uploads/681c545dbab2591d0654d0d6/reports/d8d6c0af-ace6-480a-a89b-aa774691a19e/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/771a06e3a1bdb42a7249d1c888e740c2bc46ba30b54490188c17f6c84ca96e26
Malware family:
BlackMatter Ransomware
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a260e1c9-9bca-4cc1-8cd0-6fd1afce2922
Result
Threat name:
LockBit ransomware
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Detection:
malicious
Classification:
rans.phis.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1684081
Signature
Antivirus / Scanner detection for submitted sample
Changes the wallpaper picture
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Deletes itself after installation
Found malware configuration
Found potential ransomware demand text
Found ransom note / readme
Found Tor onion address
Hides threads from debuggers
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
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 LockBit ransomware
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/771a06e3a1bdb42a7249d1c888e740c2bc46ba30b54490188c17f6c84ca96e26
Detection:
lockbit
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Link:
https://mwdb.cert.pl/sample/771a06e3a1bdb42a7249d1c888e740c2bc46ba30b54490188c17f6c84ca96e26/
Threat name:
Win32.Ransomware.Lockbit
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Status:
Malicious
First seen:
2025-05-05 14:18:48 UTC
File Type:
PE (Exe)
AV detection:
24 of 24 (100.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o4nany5bxw2cu4sj2heirz2ayk6enorqwvcjagemc73mqtfjnyta._file
Verdict:
malicious
Label(s):
lockbit
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Similar samples:
error
LockBit
Result
Malware family:
lockbit
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Score:
  10/10
Tags:
family:lockbit defense_evasion discovery ransomware spyware stealer
Link:
https://tria.ge/reports/250508-hmk7babn9z/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Control Panel
Modifies registry class
Suspicious behavior: EnumeratesProcesses
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
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops desktop.ini file(s)
Indicator Removal: File Deletion
Checks computer location settings
Executes dropped EXE
Reads user/profile data of web browsers
Renames multiple (666) files with added filename extension
Lockbit
Lockbit family
Verdict:
Malicious
Tags:
ransomware lockbit Win.Ransomware.BlackMatter-9970818-0
YARA:
Windows_Ransomware_Lockbit_369e1e94 LockBit3 MAL_RANSOM_Lockbit_Indicators_Feb24 MAL_RANSOM_LockBit_Indicators_Feb24_RID3362
Link:
https://app.threat.zone/submission/60ee6183-a71a-4551-8e8e-9fa423f3a583
Unpacked files
SH256 hash:
771a06e3a1bdb42a7249d1c888e740c2bc46ba30b54490188c17f6c84ca96e26
MD5 hash:
b5e16816fc5d4c12227dcc663f83bd87
SHA1 hash:
9e89522cd7de71b2ad66383c88ec55e2c5039166
Detections:
Darkside
Create hunting rule
Link:
https://www.unpac.me/results/750cb97b-4b24-4682-9db5-a1e558e38a64/
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/771a06e3a1bdb42a7249d1c888e740c2bc46ba30b54490188c17f6c84ca96e26

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
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Author:Rony (@r0ny_123)
Description:Detects Blackmatter ransomware
Rule name:Darkside
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Author:@bartblaze
Description:Identifies Darkside ransomware.
Rule name:lb_apihashing_code_1
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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
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Author:CTI Purple Team
Description:This rule detects the code pattern of the Stack Strings decryption algorithm.
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
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.

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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