MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a0e32603876c3035d76a78e35d5f89576ded2475451b4d27e19331bf9e6abfc3. 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

Stop

Vendor detections: 11

Intelligence 11 IOCs YARA 8 File information Comments 1

SHA256 hash:	a0e32603876c3035d76a78e35d5f89576ded2475451b4d27e19331bf9e6abfc3
SHA3-384 hash:	bf7ad0f495759bc5742ef5985e6785c0057074ec1fb9cfbd08afc3cef240fad495a06af3a80d885469e5b92d42ed4003
SHA1 hash:	33626c43f90a2f0ff4fd8fb05ed9ff4eb7d90711
MD5 hash:	d09ae1e8fcbf74bbed3ae6b78f88774e
humanhash:	mexico-wyoming-uncle-lactose
File name:	a0e32603876c3035d76a78e35d5f89576ded2475451b4d27e19331bf9e6abfc3
Download:	download sample
Signature	Stop Create hunting rule
File size:	780'800 bytes
First seen:	2021-05-03 01:15:12 UTC
Last seen:	2021-05-03 02:01:02 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	6fc938eed88df72e2acc9fa15082e527 (1 x Stop)
ssdeep	12288:D9PXCLhUh2MuYWzMBmn/ZvO7xh0EFK9Mw5JeTxuw+zadl5hAysooohm1DBsI:JPS1UVowm/ZvO7j0EFK9LJoGWiKgDBs
Threatray	48 similar samples on MalwareBazaar
TLSH	EAF4011032BDC4B3C1921C729425C6B5BE7B78B78922098B7AC83B7D0F747D1A62675E
Reporter	fbgwls245
Tags:	.wrui djvu Ransomware Stop

Intelligence

File Origin

# of uploads :

# of downloads :

1'230

Origin country :

n/a

Vendor Threat Intelligence

Detection:

STOP

Link:

https://www.capesandbox.com/analysis/148050/

Detection(s):

SecuriteInfo.com.Malware.PDB-11.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a UDP request

DNS request

Sending a custom TCP request

Creating a file

Launching a process

Creating a process with a hidden window

Adding an access-denied ACE

Deleting a recently created file

Sending an HTTP GET request

Creating a window

Creating a process from a recently created file

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Enabling autorun by creating a file

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:

Djvu Vidar

Detection:

malicious

Classification:

rans.phis.troj.adwa.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/706812

Signature

Antivirus detection for dropped file

Antivirus detection for URL or domain

Bypasses PowerShell execution policy

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found ransom note / readme

Machine Learning detection for dropped file

Machine Learning detection for sample

Modifies existing user documents (likely ransomware behavior)

Modifies the hosts file

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Mutes Antivirus updates and installments via hosts file black listing

Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)

Suspicious powershell command line found

Tries to harvest and steal Bitcoin Wallet information

Tries to harvest and steal browser information (history, passwords, etc)

Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)

Tries to steal Crypto Currency Wallets

Tries to steal Instant Messenger accounts or passwords

Writes many files with high entropy

Yara detected Djvu Ransomware

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a0e32603876c3035d76a78e35d5f89576ded2475451b4d27e19331bf9e6abfc3/

Threat name:

Win32.Trojan.Hynamer

Status:

Malicious

First seen:

2021-05-03 01:16:10 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

18 of 29 (62.07%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=udrsma4hnqydlv3kpdrv2x4jk5w62jdviunu2j7bsmy37htkx7bq._file

Result

Malware family:

vidar

Score:

10/10

Tags:

family:djvu family:vidar discovery evasion persistence ransomware spyware stealer

Link:

https://tria.ge/reports/210503-xcsqnygewx/

Behaviour

Modifies system certificate store

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Checks processor information in registry

Delays execution with timeout.exe

Kills process with taskkill

Enumerates physical storage devices

Accesses 2FA software files, possible credential harvesting

Accesses cryptocurrency files/wallets, possible credential harvesting

Adds Run key to start application

Checks installed software on the system

Looks up external IP address via web service

Loads dropped DLL

Modifies file permissions

Reads local data of messenger clients

Reads user/profile data of web browsers

Disables Task Manager via registry modification

Downloads MZ/PE file

Drops file in Drivers directory

Executes dropped EXE

Deletes Windows Defender Definitions

Djvu Ransomware

Vidar

Unpacked files

SH256 hash:

b58165bb5a4f9040d187791e870f691c449e59d3f5fa8312ba7655864236328f

MD5 hash:

5fe929b15555feeb7e4ef768211d8caa

SHA1 hash:

49f52ac9a44d3259167dbf20e7328fdaf287ac7f

Detections:

win_stop_auto

Link:

https://www.unpac.me/results/eebffa94-6b86-43c1-9aad-ace67a3da98c/

Parent samples :

7c75df63bc40beca5ccf65db76c33539ee9f3468a4149e1a0c0bfd30949f4b4d
1da3193c52b5ec3a14b36acbc9c92266a2a531399e33c1e3a209e828eda7a0a5
7c9bc6a878b6cb355bb2a5c70170aa48b1e8f369dd64ee47df3ac9ea9e213b02
9ded335a6f346de4aafbc4f8c08e90dce1f064820b13d6580f01731c9837d7a8
a0e32603876c3035d76a78e35d5f89576ded2475451b4d27e19331bf9e6abfc3
c14987c4c6fc2de2cac43355964465d7611652e29f699d64fa292399f526c103
e833b7fc4bf14527edb120ee4e691a660b21f93b1ec22bf15881bdcee4c5bb8d
712e9e9e2976782e38288d45a2d177f1dc3757c7610b4b9bae9e35be9f20b913

SH256 hash:

a0e32603876c3035d76a78e35d5f89576ded2475451b4d27e19331bf9e6abfc3

MD5 hash:

d09ae1e8fcbf74bbed3ae6b78f88774e

SHA1 hash:

33626c43f90a2f0ff4fd8fb05ed9ff4eb7d90711

Link:

https://www.unpac.me/results/eebffa94-6b86-43c1-9aad-ace67a3da98c/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Trojan

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/a0e32603876c3035d76a78e35d5f89576ded2475451b4d27e19331bf9e6abfc3

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:	INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets Create hunting rule
Author:	ditekSHen
Description:	Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers

Rule name:	MALWARE_Win_STOP Create hunting rule
Author:	ditekSHen
Description:	Detects STOP ransomware

Rule name:	MALWARE_Win_Vidar Create hunting rule
Author:	ditekSHen
Description:	Detects Vidar / ArkeiStealer

Rule name:	Ping_Del_method_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	cmd ping IP nul del

Rule name:	SUSP_XORed_URL_in_EXE Create hunting rule
Author:	Florian Roth
Description:	Detects an XORed URL in an executable
Reference:	https://twitter.com/stvemillertime/status/1237035794973560834

Rule name:	win_stop_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

Rule name:	win_vidar_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

Rule name:	with_sqlite Create hunting rule
Author:	Julian J. Gonzalez <info@seguridadparatodos.es>
Description:	Rule to detect the presence of SQLite data in raw image
Reference:	http://www.st2labs.com

File information

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

Cape

https://www.capesandbox.com/analysis/148050/

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-05-03 02:07:27 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [C0003.002] Communication Micro-objective::Connect Pipe::Interprocess Communication
1) [C0003.001] Communication Micro-objective::Create Pipe::Interprocess Communication
2) [C0003.003] Communication Micro-objective::Read Pipe::Interprocess Communication
3) [C0003.004] Communication Micro-objective::Write Pipe::Interprocess Communication
4) [C0027.009] Cryptography Micro-objective::RC4::Encrypt Data
5) [C0021.004] Cryptography Micro-objective::RC4 PRGA::Generate Pseudo-random Sequence
6) [C0049] File System Micro-objective::Get File Attributes
7) [C0052] File System Micro-objective::Writes File
8) [C0007] Memory Micro-objective::Allocate Memory
9) [C0034.001] Operating System Micro-objective::Set Variable::Environment Variable
10) [C0040] Process Micro-objective::Allocate Thread Local Storage
11) [C0042] Process Micro-objective::Create Mutex
12) [C0041] Process Micro-objective::Set Thread Local Storage Value
13) [C0018] Process Micro-objective::Terminate Process
14) [C0039] Process Micro-objective::Terminate Thread