MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 033b4950a8f249b20eb86ec6f8f2ea0a1567bb164289d1aa7fb0ba51f9bbe46c. 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


MedusaLocker


Vendor detections: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 033b4950a8f249b20eb86ec6f8f2ea0a1567bb164289d1aa7fb0ba51f9bbe46c
SHA3-384 hash: 0850c4b84c5a0f8bb9559530d60f3c6690aaa7ef4adf43f3019af6cea75da770fad79f38b768bcabc9db873544758848
SHA1 hash: e0d3e2612a757ff5be818b114028a0e4bb562bc5
MD5 hash: a80b79de02d6881d5e54afcefa38298a
humanhash: magnesium-white-kansas-video
File name:64CO.exe
Download: download sample
Signature MedusaLocker
Create hunting rule
File size:1'230'848 bytes
First seen:2021-07-23 04:20:01 UTC
Last seen:2022-04-08 10:49:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4d65c588fc4fed52e2c517152c0f245a (1 x MedusaLocker)
ssdeep 24576:FCLKd8jHzb9904e43wa2SZ6Es9S+Nm0m:4K099ReumEwS+
Threatray 2 similar samples on MalwareBazaar
TLSH T1184527BC11DF42B8E0B6D2F8CEA14A45E1F37045932045C7979C261D8E3EF9E58BAE25
Reporter r3dbU7z
Tags:exe MedusaLocker

Intelligence

File Origin
# of uploads :
3
# of downloads :
199
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
64CO.exe
Verdict:
No threats detected
Analysis date:
2021-07-23 04:23:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b998839a-6dbb-4683-9cfa-0132c6166b9f

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Medusalocker
Create hunting rule
Link:
https://www.capesandbox.com/analysis/173487/
Detection(s):
SecuriteInfo.com.Heur.Ransom.REntS.Gen.1.21216.31369.UNOFFICIAL
Create hunting rule

Result
Verdict:
MALICIOUS
Details
Base64 Encoded Powershell Directives
Detected one or more base64 encoded Powershell directives.
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ba3c552d-0932-475e-a6ab-eee4326ae265
Result
Threat name:
ReadInstructions
Create hunting rule
Detection:
malicious
Classification:
rans
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/820527
Signature
Deletes shadow drive data (may be related to ransomware)
May disable shadow drive data (uses vssadmin)
Multi AV Scanner detection for submitted file
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Modification of Boot Configuration
Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities
Sigma detected: WannaCry Ransomware
Uses bcdedit to modify the Windows boot settings
Yara detected ReadInstructions Ransomware
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 452938 Sample: 64CO.exe Startdate: 23/07/2021 Architecture: WINDOWS Score: 92 32 Sigma detected: WannaCry Ransomware 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 Yara detected ReadInstructions Ransomware 2->36 38 4 other signatures 2->38 7 64CO.exe 4 2 2->7         started        process3 signatures4 40 May disable shadow drive data (uses vssadmin) 7->40 42 Deletes shadow drive data (may be related to ransomware) 7->42 44 Uses bcdedit to modify the Windows boot settings 7->44 10 bcdedit.exe 1 7->10         started        12 bcdedit.exe 1 7->12         started        14 WMIC.exe 1 7->14         started        16 15 other processes 7->16 process5 process6 18 conhost.exe 10->18         started        20 conhost.exe 12->20         started        22 conhost.exe 14->22         started        24 conhost.exe 16->24         started        26 conhost.exe 16->26         started        28 conhost.exe 16->28         started        30 12 other processes 16->30
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/033b4950a8f249b20eb86ec6f8f2ea0a1567bb164289d1aa7fb0ba51f9bbe46c/
Threat name:
Win64.Ransomware.MedusaLocker
Create hunting rule
Status:
Malicious
First seen:
2021-07-23 04:20:03 UTC
AV detection:
11 of 46 (23.91%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=am5usufi6je3edvyn3dpr4xkbikwpoywike5dkt7wc5fd6n34rwa._file
Verdict:
suspicious
Similar samples:
0dd34e1326f18ab113be5ec91003577845f62ce25bbed8f92bff0b4077fe45da
MedusaLocker
4dd950fcdcd8483ec9346b4a5214931134975c439cf463daa3a0518cfc5db9a6
MedusaLocker
Result
Malware family:
n/a
Score:
  9/10
Tags:
evasion persistence ransomware spyware stealer
Link:
https://tria.ge/reports/210723-j43f2gxm8j/
Behaviour
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Drops file in System32 directory
Adds Run key to start application
Drops desktop.ini file(s)
Enumerates connected drives
Deletes itself
Reads user/profile data of web browsers
Deletes System State backups
Drops file in Drivers directory
Modifies extensions of user files
Deletes shadow copies
Modifies boot configuration data using bcdedit
Unpacked files
SH256 hash:
033b4950a8f249b20eb86ec6f8f2ea0a1567bb164289d1aa7fb0ba51f9bbe46c
MD5 hash:
a80b79de02d6881d5e54afcefa38298a
SHA1 hash:
e0d3e2612a757ff5be818b114028a0e4bb562bc5
Link:
https://www.unpac.me/results/520a3a37-bf1c-470c-b0ac-01019b801bc9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/033b4950a8f249b20eb86ec6f8f2ea0a1567bb164289d1aa7fb0ba51f9bbe46c

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:Base64_Encoded_Powershell_Directives
Create hunting rule
Rule name:INDICATOR_SUSPICIOUS_GENRansomware
Create hunting rule
Author:ditekSHen
Description:detects command variations typically used by ransomware

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/173487/
  
URLhaus
https://urlhaus.abuse.ch/url/1475428/

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