MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9a089790e04683ebf37d9746e0284322f59c46eef2a86cc231839482f323e871. 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


Babuk


Vendor detections: 11


Intelligence 11 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9a089790e04683ebf37d9746e0284322f59c46eef2a86cc231839482f323e871
SHA3-384 hash: e99b8ed6bf48c39d066e9b9f9e62a341417548c0142f8ce9fdb4a6cacc9ed20da9a5ee13c6d6e63af4e38c65ec958988
SHA1 hash: e3e6dfd5e0c29acefe90471e46142c120278e9f0
MD5 hash: a73d9dc904349b9c967dc6a724806b2d
humanhash: hawaii-winner-double-victor
File name:e_win.exe
Download: download sample
Signature Babuk
Create hunting rule
File size:76'800 bytes
First seen:2021-03-13 06:21:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 202fa14f574c71c2f95878e40a79322d (35 x Babuk)
ssdeep 1536:WEAhZMvhumvHlosrQLOJgY8ZZP8LHD4XWaNH71dLdG1iiFM2iG2uX:IhZ2tesrQLOJgY8Zp8LHD4XWaNH71dL+
Threatray 3 similar samples on MalwareBazaar
TLSH 0273C8116D45E3B6C6D172319167F1AAC13A197003B5B28B63C017AEFB10AE8E67CF67
Reporter FirehaK
Tags:Babuk babyk Ransomware

Intelligence

File Origin
# of uploads :
1
# of downloads :
401
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e_win.exe
Verdict:
Malicious activity
Analysis date:
2021-03-12 02:01:03 UTC
Tags:
ransomware
Link:
https://app.any.run/tasks/75816383-7e44-4899-8609-5cd301ce8b81

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Babuk
Create hunting rule
Link:
https://www.capesandbox.com/analysis/124027/
Detection(s):
Win.Ransomware.Maze-7473772-0
Create hunting rule

Win.Ransomware.Babuk-9819006-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Creating a file
Changing a file
Launching a service
Launching a process
Sending a UDP request
Creating a file in the mass storage device
Deleting volume shadow copies
Forced shutdown of a browser
Encrypting user's files
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.
Result
Threat name:
Babuk
Create hunting rule
Detection:
malicious
Classification:
rans.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/638424
Signature
Deletes shadow drive data (may be related to ransomware)
Found Tor onion address
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May disable shadow drive data (uses vssadmin)
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
Writes a notice file (html or txt) to demand a ransom
Writes many files with high entropy
Yara detected Babuk Ransomware
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9a089790e04683ebf37d9746e0284322f59c46eef2a86cc231839482f323e871/
Threat name:
Win32.Ransomware.Babuklocker
Create hunting rule
Status:
Malicious
First seen:
2021-03-12 07:41:22 UTC
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tiejpehai2b6x435s5doakcdel2zyrxo6kugzqrrqokif4zd5byq._file
Verdict:
malicious
Similar samples:
391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e
Babuk
499e43933c5ee3bb730417e07d74c93a5f7d7dee05db31714e09dffeb7e3c285
Babuk
ab4eae618bb05b4fb4a8d3790a0d18a3e1566ab477519991cb161398803a8847
Babuk
Result
Malware family:
babuk
Create hunting rule
Score:
  10/10
Tags:
family:babuk ransomware
Link:
https://tria.ge/reports/210313-n5neqfeab6/
Behaviour
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Enumerates connected drives
Modifies extensions of user files
Deletes shadow copies
Babuk Locker
Unpacked files
SH256 hash:
9a089790e04683ebf37d9746e0284322f59c46eef2a86cc231839482f323e871
MD5 hash:
a73d9dc904349b9c967dc6a724806b2d
SHA1 hash:
e3e6dfd5e0c29acefe90471e46142c120278e9f0
Link:
https://www.unpac.me/results/711744fd-52ac-49a1-9575-bc3042e13ea9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Filecoder
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9a089790e04683ebf37d9746e0284322f59c46eef2a86cc231839482f323e871

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:Babuk
Create hunting rule
Author:@_FirehaK <yara@firehak.com>
Description:Babuk / Babyk ransomware
Reference:http://chuongdong.com/reverse%20engineering/2021/01/03/BabukRansomware/
Rule name:BabukLocker
Create hunting rule
Author:@_FirehaK <yara@firehak.com>
Description:Babuk Locker ransomware
Reference:http://chuongdong.com/reverse%20engineering/2021/01/03/BabukRansomware/
Rule name:Destructive_Ransomware_Gen1
Create hunting rule
Author:Florian Roth
Description:Detects destructive malware
Reference:http://blog.talosintelligence.com/2018/02/olympic-destroyer.html
Rule name:INDICATOR_SUSPICIOUS_GENRansomware
Create hunting rule
Author:ditekSHen
Description:detects command variations typically used by ransomware
Rule name:INDICATOR_SUSPICOUS_EXE_References_VEEAM
Create hunting rule
Description:Detects executables containing many references to VEEAM. Observed in ransomware
Rule name:Ransom_Babuk
Create hunting rule
Author:TS @ McAfee ATR
Description:Rule to detect Babuk Locker

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/124027/

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