MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5fb7fa5231c18f0951c755c4cb0ec07b0889b5e320f42213cbf6bbbe499ad31. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f5fb7fa5231c18f0951c755c4cb0ec07b0889b5e320f42213cbf6bbbe499ad31
SHA3-384 hash: 97f7bd5540411047002b83b2877858c3971924c63d8a57fc697afe95d73ba5d91297896e07f01afe96af924d18fe3d56
SHA1 hash: f576ed4ae101088abcb2b6b9b0649b972b023546
MD5 hash: 6f21a85894e91b7082407e08e7c231c8
humanhash: alaska-quiet-oklahoma-potato
File name:f5fb7fa5231c18f0951c755c4cb0ec07b0889b5e320f42213cbf6bbbe499ad31.bin
Download: download sample
Signature MedusaLocker
Create hunting rule
File size:1'214'976 bytes
First seen:2021-08-08 17:48:41 UTC
Last seen:2021-08-08 18:48:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e21e79f22d20e648f922d95d15e45b27 (1 x MedusaLocker)
ssdeep 12288:QmHAIqyfF/5ebyz1dpPlRnMRTD410ALP68kG3Jz4S9FUmnyJtgoiOHmabd8ornX3:HHRFfauvpPXnMKqJtfiOHmUd8QTH
Threatray 6 similar samples on MalwareBazaar
TLSH T1BD4529BC21DF82B8D0B5D2F8CED14745E9F37045832015C796AC261D8E3EEAE597AE21
Reporter Arkbird_SOLG
Tags:exe MedusaLocker Ransomware

Intelligence

File Origin
# of uploads :
2
# of downloads :
338
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f5fb7fa5231c18f0951c755c4cb0ec07b0889b5e320f42213cbf6bbbe499ad31.bin
Verdict:
No threats detected
Analysis date:
2021-08-08 17:49:57 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a50fc584-b9ec-47a6-831d-175876c5a0c8

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/177298/
Detection(s):
SecuriteInfo.com.Trojan.MulDrop16.15241.31568.30155.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Creating a file
Enabling the 'hidden' option for recently created files
Launching a process
Launching a service
DNS request
Sending a UDP request
Creating a file in the Windows subdirectories
Moving a file to the Windows subdirectory
Replacing files
Changing a file
Moving a recently created file
Moving a file to the Program Files subdirectory
Creating a file in the Program Files subdirectories
Moving a system file
Modifying a system file
Creating a file in the system32 directory
Modifying a system executable file
Creating a file in the system32 subdirectories
Creating a file in the drivers subdirectories
Moving a file to the %AppData% subdirectory
Creating a file in the %AppData% subdirectories
Loading a system driver
Replacing system files
Running batch commands
Creating a process with a hidden window
Deleting volume shadow copies
Preventing system recovery
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Creating a file in the mass storage device
Encrypting user's files
Enabling autorun by creating a file
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/b7f5a184-d16c-41ae-9fcb-9dee296606f7
Result
Threat name:
Unknown
Detection:
malicious
Classification:
rans
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/828864
Signature
Antivirus / Scanner detection for submitted sample
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 461295 Sample: T3wA2mLrR3.bin Startdate: 08/08/2021 Architecture: WINDOWS Score: 92 35 Sigma detected: WannaCry Ransomware 2->35 37 Antivirus / Scanner detection for submitted sample 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 4 other signatures 2->41 8 T3wA2mLrR3.exe 4 3 2->8         started        process3 signatures4 43 May disable shadow drive data (uses vssadmin) 8->43 45 Deletes shadow drive data (may be related to ransomware) 8->45 47 Uses bcdedit to modify the Windows boot settings 8->47 11 vssadmin.exe 1 8->11         started        13 WMIC.exe 1 8->13         started        15 vssadmin.exe 1 8->15         started        17 15 other processes 8->17 process5 process6 19 conhost.exe 11->19         started        21 conhost.exe 13->21         started        23 conhost.exe 15->23         started        25 conhost.exe 17->25         started        27 conhost.exe 17->27         started        29 conhost.exe 17->29         started        31 11 other processes 17->31 process7 33 conhost.exe 19->33         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f5fb7fa5231c18f0951c755c4cb0ec07b0889b5e320f42213cbf6bbbe499ad31/
Threat name:
Win64.Ransomware.MedusaLocker
Create hunting rule
Status:
Malicious
First seen:
2021-03-02 22:03:11 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6x5x7jjddqmpbfi4ovoezmhma6yirg26gihueij4x5v3xzezvuyq._file
Verdict:
unknown
Similar samples:
033b4950a8f249b20eb86ec6f8f2ea0a1567bb164289d1aa7fb0ba51f9bbe46c
MedusaLocker
0dd34e1326f18ab113be5ec91003577845f62ce25bbed8f92bff0b4077fe45da
MedusaLocker
4dd950fcdcd8483ec9346b4a5214931134975c439cf463daa3a0518cfc5db9a6
MedusaLocker
728406539dbbb175ad0e0f346d6c9e563c7b95507e91c71af64f220a382525cf
MedusaLocker
c2a0a317d73c96428ab088a8f0636ec4ccace7ca691c84ed66a83a70183f40dc
MedusaLocker
Result
Malware family:
n/a
Score:
  9/10
Tags:
evasion persistence ransomware spyware stealer
Link:
https://tria.ge/reports/210808-7flgthznfj/
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:
f5fb7fa5231c18f0951c755c4cb0ec07b0889b5e320f42213cbf6bbbe499ad31
MD5 hash:
6f21a85894e91b7082407e08e7c231c8
SHA1 hash:
f576ed4ae101088abcb2b6b9b0649b972b023546
Link:
https://www.unpac.me/results/80ada26a-ad63-4fe9-8025-b5f9579b76d7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f5fb7fa5231c/report/overview.html
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/f5fb7fa5231c18f0951c755c4cb0ec07b0889b5e320f42213cbf6bbbe499ad31

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: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
Rule name:MALWARE_Win_MedusaLocker
Create hunting rule
Author:ditekshen
Description:Detects MedusaLocker ransomware

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/177298/

Comments