MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a1782d0470ceb33a2b603a178b8f9c74d942727abb182a68049d7c0d72d8fde. 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

Vidar

Vendor detections: 17

Intelligence 17 IOCs YARA 15 File information Comments 1

SHA256 hash:	5a1782d0470ceb33a2b603a178b8f9c74d942727abb182a68049d7c0d72d8fde
SHA3-384 hash:	39c577ea88dd19b35ac5cc00125c73ec58013579605ecc275a92c0c175117e522aa40e800e78b75e81b95613ac2e1074
SHA1 hash:	c1bfe16c26bf72bf842c6376ffc0913be6ac8499
MD5 hash:	184ab99fc8fe7f0af8fa251bf3eafa5d
humanhash:	mirror-fix-uniform-lake
File name:	184ab99fc8fe7f0af8fa251bf3eafa5d
Download:	download sample
Signature	Vidar Create hunting rule
File size:	4'672'784 bytes
First seen:	2024-06-25 20:57:49 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	49152:LH4NkMriwy95AQLxrke9H7QVt4BMftEkvLpriMF+VArXOqlSDqpA:b4NkMriwy95AQ1al/cVAnx+
Threatray	73 similar samples on MalwareBazaar
TLSH	T15D267C06BBE4CE12C1185737C1E310144367DEC26763E70F76857BA62E537EE4A8E68A
TrID	44.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 34.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 6.3% (.EXE) Win64 Executable (generic) (10523/12/4) 3.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):
dhash icon	7bd9c991d3dbdd4d (1 x Vidar)
Reporter	zbetcheckin
Tags:	32 exe signed vidar

Code Signing Certificate

Organisation:	2th Generation Intel® Core™ i5-1235U
Issuer:	2th Generation Intel® Core™ i5-1235U
Algorithm:	sha1WithRSAEncryption
Valid from:	2024-06-19T23:25:48Z
Valid to:	2034-06-20T23:25:48Z
Serial number:	17cce59fc436439944368f4940f4b3e4
Intelligence:	2 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:	SHA256
Thumbprint:	9afb773083394764c3cb9cc669832318a8951dd53d9e8b90ba009785c4af6d93
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

451

Origin country :

Vendor Threat Intelligence

Malware family:

vidar

ID:

File name:

5a1782d0470ceb33a2b603a178b8f9c74d942727abb182a68049d7c0d72d8fde.exe

Verdict:

Malicious activity

Analysis date:

2024-06-25 21:00:05 UTC

Tags:

telegram stealer vidar opendir loader netreactor risepro

Link:

https://app.any.run/tasks/b8bb9fd9-bc4c-4487-814a-a42d43d6fa13

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

Sanesecurity.Malware.30425.UnRegNetReactor.UNOFFICIAL

Verdict:

Malicious

Score:

90.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=667b2f987ca575ea1996c508win10vpnfull_triage

Tags:

Encryption Static Nekark

Result

Verdict:

Malware

Maliciousness:

Behaviour

Launching a process

Creating a file

Сreating synchronization primitives

DNS request

Connection attempt

Sending a custom TCP request

Using the Windows Management Instrumentation requests

Sending an HTTP POST request

Running batch commands

Creating a process with a hidden window

Forced shutdown of a system process

Unauthorized injection to a system process

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

net_reactor overlay packed packed vbnet

Link:

https://www.filescan.io/uploads/667b2f5b0bf5978c0b1258f9/reports/ee652bc9-e6fc-42f0-9c55-3a3d5dd7d9ab/overview

Verdict:

Malicious

Labled as:

MSIL_Kryptik.KLE.gen

Link:

https://www.hybrid-analysis.com/sample/5a1782d0470ceb33a2b603a178b8f9c74d942727abb182a68049d7c0d72d8fde

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:

Stealc

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/1cf8d32d-052a-4960-b406-3d9c53d0310a

Result

Threat name:

PureLog Stealer, Vidar, zgRAT

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1462694

Signature

.NET source code contains method to dynamically call methods (often used by packers)

AI detected suspicious sample

Allocates memory in foreign processes

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to inject code into remote processes

Found malware configuration

Injects a PE file into a foreign processes

Malicious sample detected (through community Yara rule)

Sample uses string decryption to hide its real strings

Searches for specific processes (likely to inject)

Sigma detected: Silenttrinity Stager Msbuild Activity

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

Writes to foreign memory regions

Yara detected AntiVM3

Yara detected Powershell download and execute

Yara detected PureLog Stealer

Yara detected Vidar stealer

Yara detected zgRAT

Behaviour

Behavior Graph:

Download SVG

Score:

86%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/5a1782d0470ceb33a2b603a178b8f9c74d942727abb182a68049d7c0d72d8fde

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/5a1782d0470ceb33a2b603a178b8f9c74d942727abb182a68049d7c0d72d8fde/

Threat name:

Win32.Spyware.Vidar

Status:

Malicious

First seen:

2024-06-25 20:58:07 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

15 of 24 (62.50%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=lilyfuchbtvthivwaoqxrohzy5gzijzhvoyyfjuajhl4bvznr7pa._file

Result

Malware family:

vidar

Score:

10/10

Tags:

family:stealc family:vidar discovery spyware stealer

Link:

https://tria.ge/reports/240625-zr5vyssfph/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Checks processor information in registry

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Program crash

Suspicious use of SetThreadContext

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

.NET Reactor proctector

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

Downloads MZ/PE file

Detect Vidar Stealer

Stealc

Vidar

Malware Config

C2 Extraction:

https://t.me/g067n
https://steamcommunity.com/profiles/76561199707802586

Unpacked files

SH256 hash:

81cadb6a9546328647f2fbd1713fcf8ee49921c6a0c7b155f6d287acddab5fd7

MD5 hash:

eb029ab5c2f8de328736c53dc3c7df47

SHA1 hash:

e05c4fba0236fee2516bf53a287e41e0e97a0ee5

Link:

https://www.unpac.me/results/fdc75bb9-5506-4108-901e-34129d29b20a/

Parent samples :

12df075fcaec366639ab37f203aa412540f351ee17e7f126a4a126e7a61c2a9b
b8a5ef9ea9fa588907a197db55c743559460190aa58b227db10d6be75d8bfe39
e603e36cae3f0fa9badbeaeff8fb0becb1ed444776892db76cd8d219e2ba92bd

SH256 hash:

2d93147f8982650cb7d1244291d752c0009fcfded0d10ecb73fba368cd37b741

MD5 hash:

794611145fc253923556c57871c17a6a

SHA1 hash:

9faf0d59bf07000376516c9a90cd714873830155

Link:

https://www.unpac.me/results/fdc75bb9-5506-4108-901e-34129d29b20a/

SH256 hash:

751a822c5048bc8c41316ead7d8becae7f88c12a9c17b0ccf6b4d83215a1d7fe

MD5 hash:

922b32131a6dabc7391df392d6aa33c1

SHA1 hash:

05f4961b195332542becd130ae6620bc24965c98

Detections:

stealc

win_zhmimikatz_auto

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Link:

https://www.unpac.me/results/fdc75bb9-5506-4108-901e-34129d29b20a/

SH256 hash:

0ab41930f0a18d7629031bf5cd9a8c7090c13983c1d7567b9018185f0fa18f0d

MD5 hash:

2890a00ef6943ed98e2b7c6e3e49ae1c

SHA1 hash:

9072a751e68fe39222aebc87ffb898a423310ce9

Link:

https://www.unpac.me/results/fdc75bb9-5506-4108-901e-34129d29b20a/

SH256 hash:

296db77bd131afbede44c55459de3794ed41623a50f6e64899d0d71dfb5ce4fc

MD5 hash:

2874b0dbe28018ca6885c9c9d4b07628

SHA1 hash:

a13fb8498b48e0dc8849068f587b63bbf08fef1e

Link:

https://www.unpac.me/results/fdc75bb9-5506-4108-901e-34129d29b20a/

SH256 hash:

5a1782d0470ceb33a2b603a178b8f9c74d942727abb182a68049d7c0d72d8fde

MD5 hash:

184ab99fc8fe7f0af8fa251bf3eafa5d

SHA1 hash:

c1bfe16c26bf72bf842c6376ffc0913be6ac8499

Detections:

INDICATOR_EXE_Packed_DotNetReactor

MALWARE_Win_zgRAT

Link:

https://www.unpac.me/results/fdc75bb9-5506-4108-901e-34129d29b20a/

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/5a1782d0470ceb33a2b603a178b8f9c74d942727abb182a68049d7c0d72d8fde

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:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DotNet_Reactor Create hunting rule
Author:	@bartblaze
Description:	Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.

Rule name:	EXE_Vidar_May_2024 Create hunting rule
Author:	NDA0E
Description:	Detects Vidar payload

Rule name:	has_telegram_urls Create hunting rule
Author:	Aaron DeVera<aaron@backchannel.re>
Description:	Detects Telegram URLs

Rule name:	INDICATOR_EXE_Packed_DotNetReactor Create hunting rule
Author:	ditekSHen
Description:	Detects executables packed with unregistered version of .NET Reactor

Rule name:	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA Create hunting rule
Author:	ditekSHen
Description:	Detects Windows executables referencing non-Windows User-Agents

Rule name:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	NET Create hunting rule
Author:	malware-lu

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_imphash Create hunting rule

Rule name:	PE_Potentially_Signed_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	PureCrypter Create hunting rule
Author:	@bartblaze
Description:	Identifies PureCrypter, .NET loader and obfuscator.
Reference:	https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	ThreadControl__Context Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

Vidar

exe 5a1782d0470ceb33a2b603a178b8f9c74d942727abb182a68049d7c0d72d8fde

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2799475/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Comments

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zbet commented on 2024-06-25 20:57:50 UTC

url : hxxp://5.42.66.10/download/th/getimage15.php