MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 591153a47beb8f657b0209eaf8a0aa91721965645cbffba13c7991d6591331cb. 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 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 591153a47beb8f657b0209eaf8a0aa91721965645cbffba13c7991d6591331cb
SHA3-384 hash: 874c431150ebbc6ce3e5f34de48eae9770bb8d0c2921dc2f0803c44ab87bfca02c7be70676484cf9cda131cdf145bb49
SHA1 hash: 0b5de94cfb4e33f664cc562e0b205b84236615a3
MD5 hash: 4d2c614ba98df43601b6d9551bd26684
humanhash: sierra-wolfram-stairway-potato
File name:64RA.exe
Download: download sample
Signature MedusaLocker
Create hunting rule
File size:600'064 bytes
First seen:2021-07-23 04:20:15 UTC
Last seen:2022-04-12 13:07:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash c26403ea8cfe82591aff1eaca9fb0431 (1 x MedusaLocker)
ssdeep 12288:ffV36FBXWYgeWYg955/155/OqgG0xbxHrRBVmfxnmtoH:HV36FB8gG01BVDIRmtA
Threatray 5 similar samples on MalwareBazaar
TLSH T148D47D8AA6A503F9E077E134C991850AE6B27C850BA1C7DF139057AE1F732D24E3F761
Reporter r3dbU7z
Tags:Curator exe Keversen MedusaLocker Ransomware

Intelligence

File Origin
# of uploads :
5
# of downloads :
261
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
64RA.exe
Verdict:
No threats detected
Analysis date:
2021-07-23 04:23:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/49506327-a304-4493-b5d3-0b6d76ec34ec

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/173488/
Detection(s):
SecuriteInfo.com.Trojan.Encoder.32942.24009.16592.UNOFFICIAL
Create hunting rule

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:
Curator Ransomware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/40053896-a68e-4cab-8401-8896bcea6036
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/820528
Signature
Antivirus / Scanner detection for submitted sample
Deletes shadow drive data (may be related to ransomware)
Machine Learning detection for sample
May disable shadow drive data (uses vssadmin)
Multi AV Scanner detection for submitted file
Sigma detected: Copying Sensitive Files with Credential Data
Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 452939 Sample: 64RA.exe Startdate: 23/07/2021 Architecture: WINDOWS Score: 80 33 Antivirus / Scanner detection for submitted sample 2->33 35 Multi AV Scanner detection for submitted file 2->35 37 Sigma detected: Shadow Copies Deletion Using Operating Systems Utilities 2->37 39 3 other signatures 2->39 7 64RA.exe 501 2->7         started        11 notepad.exe 2->11         started        13 OpenWith.exe 2->13         started        process3 file4 25 763__Cellular_PerS...ingIconPath.provxml, DOS 7->25 dropped 27 C:\ProgramData\...\495__Connections.provxml, DOS 7->27 dropped 29 474__Cellular_PerS...randingName.provxml, DOS 7->29 dropped 31 9 other files (none is malicious) 7->31 dropped 41 May disable shadow drive data (uses vssadmin) 7->41 43 Deletes shadow drive data (may be related to ransomware) 7->43 15 cmd.exe 1 7->15         started        17 vssadmin.exe 1 7->17         started        signatures5 process6 process7 19 conhost.exe 15->19         started        21 timeout.exe 1 15->21         started        23 conhost.exe 17->23         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/591153a47beb8f657b0209eaf8a0aa91721965645cbffba13c7991d6591331cb/
Threat name:
Win64.Ransomware.LockCrypt
Create hunting rule
Status:
Malicious
First seen:
2021-07-23 04:21:04 UTC
AV detection:
16 of 46 (34.78%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
1b30e0509075234edd5f46ed054ad56bb6cf8d234341e0c72fe27407027e94de
MedusaLocker
475df55bf31e8c58a8646cad8863913d3fd2d58b72a48ecef4cb1057efd1268c
MedusaLocker
e3f297dcc0aac80152ba1af99a2c4c101a1ee88759900da7cdfcc9cb5955f06d
MedusaLocker
f6c4ba7e81f05fb9d660adc4a73562ce9d78a5850622bc90132f0afde601f804
MedusaLocker
f8b132d8c750482bd5b6f03bae58f6805fb3480ef0904a21f0111ede5a1ebb1b
MedusaLocker
Result
Malware family:
n/a
Score:
  10/10
Tags:
ransomware
Link:
https://tria.ge/reports/210723-emwn5mtc2j/
Behaviour
Delays execution with timeout.exe
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops desktop.ini file(s)
Deletes itself
Modifies extensions of user files
Deletes shadow copies
Unpacked files
SH256 hash:
591153a47beb8f657b0209eaf8a0aa91721965645cbffba13c7991d6591331cb
MD5 hash:
4d2c614ba98df43601b6d9551bd26684
SHA1 hash:
0b5de94cfb4e33f664cc562e0b205b84236615a3
Link:
https://www.unpac.me/results/6790f953-276b-4d79-8342-c10bc5d1645f/
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/591153a47beb8f657b0209eaf8a0aa91721965645cbffba13c7991d6591331cb

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:Win64_Ransomware_Curator
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects Curator 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/173488/
  
URLhaus
https://urlhaus.abuse.ch/url/1475427/

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