MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2. 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 25 File information Comments

SHA256 hash:	a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2
SHA3-384 hash:	73e9c435e95522b7dc32e6d4e924f3af3f84e775103527ebd450e692907f2804b9553f1f12e4e5e245c8ab23ca786fcb
SHA1 hash:	a250ffa45a7e64b8c958c93fc18a467ceaf06f6b
MD5 hash:	3df8ef81dc48c642aa5a6fb0a7a3d56a
humanhash:	timing-equal-xray-foxtrot
File name:	file
Download:	download sample
Signature	Vidar Create hunting rule
File size:	2'989'440 bytes
First seen:	2026-06-25 09:04:36 UTC
Last seen:	2026-06-25 22:48:53 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	d42595b695fc008ef2c56aabd8efd68e (497 x Vidar, 97 x Stealc, 92 x Rhadamanthys)
ssdeep	49152:VOu3sby6urGys8wKxY/o33G8OT7E81sYP41R:VOXW/ck6T7h1sYPc
Threatray	91 similar samples on MalwareBazaar
TLSH	T143D58C0BBCD548E9C9AAAB314AB21182BB75BD580F3623D31E81B33C2E357D15D79385
TrID	33.1% (.EXE) Win64 Executable (generic) (6522/11/2) 25.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 10.4% (.ICL) Windows Icons Library (generic) (2059/9) 10.3% (.EXE) OS/2 Executable (generic) (2029/13) 10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
Reporter	Bitsight
Tags:	dropped-by-gcleaner exe f MIX1.file signed vidar

Code Signing Certificate

Organisation:	pokerstars.com
Issuer:	pokerstars.com
Algorithm:	sha256WithRSAEncryption
Valid from:	2026-06-25T06:59:21Z
Valid to:	2027-06-25T06:59:21Z
Serial number:	2afa70a3b23d1798
Thumbprint Algorithm:	SHA256
Thumbprint:	0f6dba25e5093781534e7d1c5f8da18c5f2cc555c1ba00f2f5d68e27adc4642b
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Bitsight

url: http://158.94.209.95/service

Intelligence

File Origin

# of uploads :

# of downloads :

149

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

vidar

ID:

File name:

_a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2.exe

Verdict:

Malicious activity

Analysis date:

2026-06-25 09:06:15 UTC

Tags:

stealer stealc vidar golang

Link:

https://app.any.run/tasks/8704d25d-9ba6-4141-af7c-f63c7253fb33

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/71910/

Detection(s):

SecuriteInfo.com.Win64.Evo-gen.31662583.UNOFFICIAL

Verdict:

Clean

Score:

89.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6a3cef7386bc95245bf95bce

Tags:

n/a

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Connection attempt

Behavior that indicates a threat

Sending a custom TCP request

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

adaptive-context anti-vm crypto golang packed signed

Link:

https://www.filescan.io/uploads/6a3cef6962d0679105ff61c4/reports/c7580f88-22f9-47c8-b559-6fcbe4967fe4/overview

Verdict:

Malicious

Labled as:

WinGo/Kryptik.UF trojan

Link:

https://www.hybrid-analysis.com/sample/a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2

Verdict:

Malicious

File Type:

exe x64

Detections:

Backdoor.Win64.Gsb.sb Backdoor.Win64.Gsb.gen

Link:

https://opentip.kaspersky.com/a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2/results?tab=lookup

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/e8aa451f-b9ab-44cb-a347-e74a29dfeda5

Score:

99%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2

Verdict:

inconclusive

YARA:

4 match(es)

Tags:

Executable PE (Portable Executable) PE File Layout Win 64 Exe x64

Link:

https://app.malva.re/file/3df8ef81dc48c642aa5a6fb0a7a3d56a

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2/

Verdict:

Malicious

Threat:

Family.STEALC

Link:

https://tip.neiki.dev/file/a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2

Threat name:

Win64.Trojan.Generic

Status:

Suspicious

First seen:

2026-06-25 09:05:56 UTC

File Type:

PE+ (Exe)

AV detection:

7 of 36 (19.44%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=uofd2l57vffiocwsu4ldk3r5j4e52trr5xhd2tu4lxsuhzcfjlba._file

Verdict:

malicious

Label(s):

vidar

Result

Malware family:

n/a

Score:

10/10

Tags:

adware credential_access discovery persistence ransomware spyware stealer

Link:

https://tria.ge/reports/260625-k2jyxaax7m/

Behaviour

Checks SCSI registry key(s)

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

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 SendNotifyMessage

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Uses Volume Shadow Copy WMI provider

Uses Volume Shadow Copy service COM API

Browser Information Discovery

System Time Discovery

Drops file in Windows directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Checks installed software on the system

Enumerates connected drives

Reads WinSCP keys stored on the system

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Unsecured Credentials: Credentials In Files

Boot or Logon Autostart Execution: Active Setup

Suspicious use of NtCreateProcessExOtherParentProcess

Unpacked files

SH256 hash:

a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2

MD5 hash:

3df8ef81dc48c642aa5a6fb0a7a3d56a

SHA1 hash:

a250ffa45a7e64b8c958c93fc18a467ceaf06f6b

Link:

https://www.unpac.me/results/6373386e-eb3c-4217-885f-0045d5a53e7a/

Malware family:

Vidar

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a38a3d2fbfa9/report/overview.html

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

Threat name:

vidar

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2

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:	DebuggerException__SetConsoleCtrl 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:	Detect_Go_GOMAXPROCS Create hunting rule
Author:	Obscurity Labs LLC
Description:	Detects Go binaries by the presence of runtime.GOMAXPROCS in the runtime metadata

Rule name:	FreddyBearDropper Create hunting rule
Author:	Dwarozh Hoshiar
Description:	Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.

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:	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:	RemusStealer_GoPayload Create hunting rule
Author:	burger
Description:	Detects RemusStealer Go-compiled payload

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:	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/

File information

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

Web download

Vidar

exe a38a3d2fbfa94a870ad2a716356e3d4f09dd4e31edce3d4e9c5de543e4454ac2

(this sample)

Dropped by

Gcleaner

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/71910/

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