MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918. 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: 15

Intelligence 15 IOCs YARA 7 File information Comments 1

SHA256 hash:	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918
SHA3-384 hash:	d7df44bc1c3f6c946ee8f6c46ff4253f1c93aaf8ab5d1780ebd38049006cb48607e92530f641e9b87e1005ed013f2b3e
SHA1 hash:	b1a01340c98ec2c4654773c1a034897c16fa21c6
MD5 hash:	3d8c2fb9d4272ae0a835faa7715132ef
humanhash:	social-maine-magnesium-michigan
File name:	3d8c2fb9d4272ae0a835faa7715132ef
Download:	download sample
Signature	Vidar Create hunting rule
File size:	639'016 bytes
First seen:	2024-10-15 07:27:31 UTC
Last seen:	2024-10-15 11:42:27 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	5569ec101333623476b6cdb226005b45 (7 x LummaStealer, 3 x Stealc, 2 x Vidar)
ssdeep	12288:G8CFnbfafLdd6BIKSj1Zih0LNCEhM+cqgN/JCWx8icDoIlxUKHTEO:zCRbyDWBGjTikoHw2/dx8iSoIlxUKzt
Threatray	252 similar samples on MalwareBazaar
TLSH	T1BDD4F1127680C477C563113309ACD7B56A3EB9201B525ADFA7980FBDDFB42C09E319AE
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10522/11/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika	pebin
Reporter	zbetcheckin
Tags:	32 exe vidar

Intelligence

File Origin

# of uploads :

# of downloads :

379

Origin country :

Vendor Threat Intelligence

Malware family:

vidar

ID:

File name:

3d8c2fb9d4272ae0a835faa7715132ef

Verdict:

Malicious activity

Analysis date:

2024-10-15 07:37:07 UTC

Tags:

vidar stealer stealc loader

Link:

https://app.any.run/tasks/d97fa534-da0e-4d4c-b354-043c7ef9638e

Note:

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

Detection(s):

SecuriteInfo.com.Trojan.PWS.Steam.37716.2606.19907.UNOFFICIAL

Verdict:

Malicious

Score:

81.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=670e19871d4ef219fa62c0d6

Tags:

Injection Exploit Obfusc

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

epmicrosoft_visual_cc fingerprint invalid-signature microsoft_visual_cc overlay packed signed stealc

Link:

https://www.filescan.io/uploads/670e19849c6b7ca24108829d/reports/fb1f260f-9099-4af5-95bb-50b9109c4575/overview

Verdict:

Malicious

Labled as:

Lazy.Generic

Link:

https://www.hybrid-analysis.com/sample/28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918

Result

Verdict:

MALICIOUS

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/267666b3-3012-4a27-9de4-c0b66397c3ad

Result

Threat name:

Vidar

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1533878

Signature

AI detected suspicious sample

Antivirus / Scanner detection for submitted sample

C2 URLs / IPs found in malware configuration

Found malware configuration

Found potential dummy code loops (likely to delay analysis)

High number of junk calls founds (likely related to sandbox DOS / API hammering)

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Yara detected AntiVM3

Yara detected Powershell download and execute

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918/

Threat name:

Win32.Trojan.Stealc

Status:

Malicious

First seen:

2024-10-15 07:28:12 UTC

File Type:

PE (Exe)

AV detection:

16 of 38 (42.11%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=fczkycelqbflhyczunytiybmsl2pq4aqwzickl3bzlltiiucpema._file

Verdict:

malicious

Label(s):

stealc

Vidar

652967d92f3b2a249117eb23af1830c1271136b4ec915078e27638be6d72ef6c

Vidar

937eb23c0c68a34501be029aa11106e47cb2a3642de860a21dcc47983520e99c

Vidar

9ca478d53da793e89bf97d72d84ea97dcad229ecc0f776f91d10368ac7fa53ff

Vidar

b5eaf10fcee125295402478e086f6e3c441024daec47dde0170ba528525f1eb2

Vidar

f06e0e417bca037bfa2150451bb6a4e38aa9db104c29167c1f642dc2ca60abfc

Vidar

+ 242 additional samples on MalwareBazaar

Result

Malware family:

vidar

Score:

10/10

Tags:

family:vidar botnet:191375c1805c0d5109ea6297d63371b2 credential_access discovery spyware stealer

Link:

https://tria.ge/reports/241015-jan8wasbjb/

Behaviour

Checks processor information in registry

Delays execution with timeout.exe

Modifies system certificate store

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Browser Information Discovery

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Loads dropped DLL

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Unsecured Credentials: Credentials In Files

Downloads MZ/PE file

Detect Vidar Stealer

Vidar

Malware Config

C2 Extraction:

https://steamcommunity.com/profiles/76561199786602107
https://t.me/lpnjoke

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/a584dfbd-8352-4cda-963e-f3cb341f844d

Unpacked files

SH256 hash:

0a6b558dc092b4f6bce802a6407fe468f7b973c82db36e2d7a0d0db5635838b4

MD5 hash:

1fbd01ee768b7c4abfd2783a4707a072

SHA1 hash:

15288415ec755c2673da3c716386abfdd35aaaed

Link:

https://www.unpac.me/results/7f1506ac-4f13-479d-a729-2aba07709021/

SH256 hash:

2aaba7efb7a0ae6eb364945902302ebd09ef5d20a726f08d0fec4bf54243c42c

MD5 hash:

e395f82aa8979b7fdfd2831e29e59b41

SHA1 hash:

b59d44752c4086daaf2e2ae65f5a41cfe2c2fe99

Detections:

VidarStealer

INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Link:

https://www.unpac.me/results/7f1506ac-4f13-479d-a729-2aba07709021/

Parent samples :

652967d92f3b2a249117eb23af1830c1271136b4ec915078e27638be6d72ef6c
01cddc898479dccce3d215de27163673b5d5d75b2ebbdc0f679e5d044919233f
937eb23c0c68a34501be029aa11106e47cb2a3642de860a21dcc47983520e99c
54bc5a6ed4cca0770ced899f55b18a9e4d7ba7c6b0136f3291c43a5112ef0800
28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918
c04f64f0b5cbd336ad8b5dcf40727f50dba7534d66df1998110f38af533b45b3

SH256 hash:

28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918

MD5 hash:

3d8c2fb9d4272ae0a835faa7715132ef

SHA1 hash:

b1a01340c98ec2c4654773c1a034897c16fa21c6

Link:

https://www.unpac.me/results/7f1506ac-4f13-479d-a729-2aba07709021/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/28b2ac088b80/report/overview.html

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

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:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

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

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	PE_Potentially_Signed_Digital_Certificate Create hunting rule
Author:	albertzsigovits

File information

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

Web download

Vidar

exe 28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3232376/

URLhaus

https://urlhaus.abuse.ch/url/3235678/

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_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CloseHandle KERNEL32.dll::CreateThreadpoolWork
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::FreeConsole KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleOutputCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateFileW

Comments

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zbet commented on 2024-10-15 07:27:32 UTC

url : hxxp://assets.gziraq.com/css/7f3c2473d1e6.exe