MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a63a4bef804fd6e29dfb03780c4b68d353b848d952573465d4a019b452c56e51. 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: 14

Intelligence 14 IOCs YARA 32 File information Comments

SHA256 hash:	a63a4bef804fd6e29dfb03780c4b68d353b848d952573465d4a019b452c56e51
SHA3-384 hash:	8d8ede93062f0b579063c5720ae116bbe60fb17079db798b2762f930897f556c1d1984e55778c4acdcc67fd6e0a1a48f
SHA1 hash:	2e357aaa105ce7e5b7cd988fda1fb6d450a04913
MD5 hash:	e130afe300fc8dad62b37afa5a82dfcf
humanhash:	seventeen-triple-cup-kilo
File name:	mpclient.dll
Download:	download sample
Signature	Vidar Create hunting rule
File size:	2'513'200 bytes
First seen:	2026-04-20 13:04:09 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	0951d9f67c9a9e1b6ea746ed01bccc26 (54 x Vidar, 18 x Rhadamanthys, 3 x zgRAT)
ssdeep	24576:084lQWyOUzPx49lMUe0/tLbSKaRMiND8OAVDV9GizX5NNyJkueB:0XuWy1xizeGVaMpVDVb0eB
Threatray	22 similar samples on MalwareBazaar
TLSH	T112C58C0AADD04876C4AAA3368CB752967735F8581B3723C72E236A782FF37D05975390
TrID	45.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 18.0% (.EXE) Win64 Executable (generic) (6522/11/2) 13.9% (.EXE) Win16 NE executable (generic) (5038/12/1) 5.6% (.ICL) Windows Icons Library (generic) (2059/9) 5.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika	pebin
Reporter	burger
Tags:	exe signed vidar

Code Signing Certificate

Organisation:	crunchyroll.com
Issuer:	WE1
Algorithm:	sha256WithRSAEncryption
Valid from:	2026-03-18T01:26:46Z
Valid to:	2026-06-16T02:26:43Z
Serial number:	574e6979123e6a530ee72ed579523f65
Intelligence:	4 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:	SHA256
Thumbprint:	c656075f4b88719ca1aeafce4e3e1370105aa85781eaae104516f0fb69f39c2c
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

164

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

vidar

ID:

File name:

mpclient.dll

Verdict:

Malicious activity

Analysis date:

2026-04-20 13:03:36 UTC

Tags:

vidar stealer

Link:

https://app.any.run/tasks/998e7a39-dcc6-4244-8657-3c4fb51b4db8

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/62519/

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69e62439f68adfe1003bdc9f

Tags:

injection obfusc virus

Result

Verdict:

Clean

Maliciousness:

Behaviour

DNS request

Gathering data

Verdict:

Malicious

Labled as:

Win/malicious_confidence_60%

Link:

https://www.hybrid-analysis.com/sample/a63a4bef804fd6e29dfb03780c4b68d353b848d952573465d4a019b452c56e51

Verdict:

Malicious

File Type:

dll x64

First seen:

2026-04-20T10:10:00Z UTC

Last seen:

2026-04-20T17:58:00Z UTC

Hits:

~10

Detections:

HEUR:Trojan.Win64.DllHijack.gen Backdoor.Win64.Gsb.sb Backdoor.Win64.Gsb.gen Trojan.Win64.DllHijack.sb

Link:

https://opentip.kaspersky.com/a63a4bef804fd6e29dfb03780c4b68d353b848d952573465d4a019b452c56e51/results?tab=lookup

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/35917e26-82b4-4b73-92f7-5139ec1ce70c

Result

Threat name:

Vidar

Detection:

malicious

Classification:

troj.spyw.evad.mine

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1901149

Signature

AI detected suspicious PE digital signature

Allocates memory in foreign processes

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

Contains functionality to registers a callback to get notified when the system is suspended or resumed (often done by Miners)

Injects a PE file into a foreign processes

Joe Sandbox ML detected suspicious sample

Multi AV Scanner detection for submitted file

Potentially malicious time measurement code found

Queues an APC in another process (thread injection)

Sample uses string decryption to hide its real strings

Suricata IDS alerts for network traffic

System process connects to network (likely due to code injection or exploit)

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

Writes to foreign memory regions

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

82%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a63a4bef804fd6e29dfb03780c4b68d353b848d952573465d4a019b452c56e51

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a63a4bef804fd6e29dfb03780c4b68d353b848d952573465d4a019b452c56e51/

Verdict:

Malicious

Threat:

Family.VIDAR

Link:

https://tip.neiki.dev/file/a63a4bef804fd6e29dfb03780c4b68d353b848d952573465d4a019b452c56e51

Threat name:

Win64.Trojan.Egairtigado

Status:

Malicious

First seen:

2026-04-20 13:04:02 UTC

File Type:

PE+ (Dll)

AV detection:

10 of 24 (41.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=uy5ex34aj7lofhp3an4ays3i2nj3qsgzkjltizouuam3iuwfnziq._file

Result

Malware family:

vidar

Score:

10/10

Tags:

family:vidar collection discovery spyware stealer

Link:

https://tria.ge/reports/260420-qa82lsft5w/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies data under HKEY_USERS

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Browser Information Discovery

System Time Discovery

Drops file in Windows directory

Accesses Microsoft Outlook profiles

Checks installed software on the system

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Badlisted process makes network request

Detects Vidar Stealer

Family: Vidar

Unpacked files

SH256 hash:

a63a4bef804fd6e29dfb03780c4b68d353b848d952573465d4a019b452c56e51

MD5 hash:

e130afe300fc8dad62b37afa5a82dfcf

SHA1 hash:

2e357aaa105ce7e5b7cd988fda1fb6d450a04913

Link:

https://www.unpac.me/results/b99905dd-2b48-4a11-9e5b-fa4599278d49/

Malware family:

Vidar

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a63a4bef804f/report/overview.html

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

Threat name:

Legit

Score:

0.29

Link:

https://yomi.yoroi.company/submissions/a63a4bef804fd6e29dfb03780c4b68d353b848d952573465d4a019b452c56e51

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:	command_and_control Create hunting rule
Author:	CD_R0M_
Description:	This rule searches for common strings found by malware using C2. Based on a sample used by a Ransomware group

Rule name:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

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

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

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

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

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

Rule name:	DetectGoMethodSignatures Create hunting rule
Author:	Wyatt Tauber
Description:	Detects Go method signatures in unpacked Go binaries

Rule name:	dgaagas Create hunting rule
Author:	Harshit
Description:	Uses certutil.exe to download a file named test.txt

Rule name:	GoBinTest Create hunting rule

Rule name:	golang Create hunting rule

Rule name:	Golangmalware Create hunting rule
Author:	Dhanunjaya
Description:	Malware in Golang

Rule name:	golang_binary_string Create hunting rule
Description:	Golang strings present

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	golang_duffcopy_amd64 Create hunting rule

Rule name:	Golang_Find_CSC846 Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	Golang_Find_CSC846_Simple Create hunting rule
Author:	Ashar Siddiqui
Description:	Find Go Signatuers

Rule name:	HiveRansomware Create hunting rule
Author:	Dhanunjaya
Description:	Yara Rule To Detect Hive V4 Ransomware

Rule name:	identity_golang Create hunting rule
Author:	Eric Yocam
Description:	find Golang malware

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

Rule name:	pe_detect_tls_callbacks Create hunting rule

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	ProgramLanguage_Golang Create hunting rule
Author:	albertzsigovits
Description:	Application written in Golang programming language

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

Rule name:	Suspicious_Golang_Binary Create hunting rule
Author:	Tim Machac
Description:	Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)

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

Rule name:	SUSP_XORed_URL_in_EXE_RID2E46 Create hunting rule
Author:	Florian Roth
Description:	Detects an XORed URL in an executable
Reference:	https://twitter.com/stvemillertime/status/1237035794973560834

Rule name:	telebot_framework Create hunting rule
Author:	vietdx.mb

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

Rule name:	TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE Create hunting rule
Author:	CYFARE
Description:	Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:	https://cyfare.net/

Rule name:	VECT_Ransomware Create hunting rule
Author:	Mustafa Bakhit
Description:	Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

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/62519/

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