MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51b1d11e135deda885610e16bd2f179721f0f142fd8b041eb1aae1486e2cc286. 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 25 File information Comments

SHA256 hash:	51b1d11e135deda885610e16bd2f179721f0f142fd8b041eb1aae1486e2cc286
SHA3-384 hash:	c6a33a99f224b3b34f1ad09ca3e01005d6e07a3e002fffaf2ad22c6647c602c19a2456bc54b77e7e107906b3e9bd41be
SHA1 hash:	f1c6b2b1ebc8ef18ffab107c52585e9ab0d31b58
MD5 hash:	643ae912235fcfffbddf28c6df6efbbb
humanhash:	ceiling-video-autumn-purple
File name:	file
Download:	download sample
Signature	Vidar Create hunting rule
File size:	10'288'776 bytes
First seen:	2025-12-08 01:58:31 UTC
Last seen:	2025-12-08 04:45:38 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	4035d2883e01d64f3e7a9dccb1d63af5 (47 x ServHelper, 20 x LummaStealer, 17 x Vidar)
ssdeep	49152:SksBP+O83ArYHTMt1fSEBs4IRSLE6ZtmFpWU4iYh5Huw2wfP2+K1Oe:3O83Ar6GFPnLmjW8YhwfaPO
TLSH	T142A63C82B94585A6C95EF139916462717B31BC4E43303BD76FE81AA90D3BBC4273EF18
gimphash	b0f785c609ddb278610b9d5c24f8f55690373a83485b6a5fd4d37c3f3bac6665
TrID	48.7% (.EXE) Win64 Executable (generic) (10522/11/4) 23.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 9.3% (.EXE) OS/2 Executable (generic) (2029/13) 9.2% (.EXE) Generic Win/DOS Executable (2002/3) 9.2% (.EXE) DOS Executable Generic (2000/1)
Magika	pebin
Reporter	Bitsight
Tags:	dropped-by-amadey exe fbf543 signed vidar

Code Signing Certificate

Organisation:	githab.com
Issuer:	R13
Algorithm:	sha256WithRSAEncryption
Valid from:	2025-10-16T07:06:41Z
Valid to:	2026-01-14T07:06:40Z
Serial number:	06811e3acd8227232ee58a61ecd714a9b643
Intelligence:	35 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:	SHA256
Thumbprint:	b1ef11dc57f4fd8f59d0ff0532fe401ba01b53ef575a7bf187f07ba702aa4f1e
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Bitsight

url: http://178.16.55.189/files/1671711641/R7emRaf.exe

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

Going

Details

Link:

https://research.acce.ciphertechsolutions.com/results/36f86fe2-de7c-4ec8-b30d-0213ac2c6c36/

Malware family:

vidar

ID:

File name:

file

Verdict:

Malicious activity

Analysis date:

2025-12-08 01:59:54 UTC

Tags:

xor-url generic golang stealer stealc vidar

Link:

https://app.any.run/tasks/123206ce-7f9b-4b8c-abd1-bdf444984769

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/42960/

Detection(s):

SecuriteInfo.com.Win64.Malware-gen.38646751.UNOFFICIAL

Verdict:

Malicious

Score:

93.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=693630f6920336450abc1900

Tags:

ransomware injection dropper emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a custom TCP request

Creating a file

Сreating synchronization primitives

DNS request

Connection attempt

Sending an HTTP GET request

Behavior that indicates a threat

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

adaptive-context anti-vm crypto golang overlay signed

Link:

https://www.filescan.io/uploads/693630f2ff25e40750d6c1a2/reports/ad2a2cf0-f3d0-4291-89ba-caa141424f3f/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/51b1d11e135deda885610e16bd2f179721f0f142fd8b041eb1aae1486e2cc286

Result

Gathering data

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/a105110d-7a2b-416d-83fc-2ef5f02bf4cd

Score:

59%

Verdict:

Susipicious

File Type:

Link:

https://malprob.io/report/51b1d11e135deda885610e16bd2f179721f0f142fd8b041eb1aae1486e2cc286

Verdict:

inconclusive

YARA:

5 match(es)

Tags:

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

Link:

https://app.malva.re/file/643ae912235fcfffbddf28c6df6efbbb

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/51b1d11e135deda885610e16bd2f179721f0f142fd8b041eb1aae1486e2cc286/

Verdict:

Malicious

Threat:

Family.STEALC

Link:

https://tip.neiki.dev/file/51b1d11e135deda885610e16bd2f179721f0f142fd8b041eb1aae1486e2cc286

Gathering data

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=kgy5chqtlxw2rblbbyll2lyxs4q7b4kc7wfqihvrvlquq3rmykda._file

Result

Malware family:

vidar

Score:

10/10

Tags:

family:vidar discovery spyware stealer

Link:

https://tria.ge/reports/251208-cehtbsykgp/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies data under HKEY_USERS

Modifies registry class

Runs ping.exe

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Browser Information Discovery

Enumerates physical storage devices

System Network Configuration Discovery: Internet Connection Discovery

Drops file in Windows directory

Checks installed software on the system

Checks computer location settings

Reads user/profile data of local email clients

Reads user/profile data of web browsers

Detects Vidar Stealer

Vidar

Vidar family

Verdict:

Malicious

Tags:

Stealc

YARA:

n/a

Link:

https://app.threat.zone/submission/c46050f8-6f9c-497d-9f7a-7828726716d8

Unpacked files

SH256 hash:

51b1d11e135deda885610e16bd2f179721f0f142fd8b041eb1aae1486e2cc286

MD5 hash:

643ae912235fcfffbddf28c6df6efbbb

SHA1 hash:

f1c6b2b1ebc8ef18ffab107c52585e9ab0d31b58

Link:

https://www.unpac.me/results/41812d5a-7350-4277-9f7d-80bbca093b8e/

Malware family:

Vidar

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/51b1d11e135d/report/overview.html

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/51b1d11e135deda885610e16bd2f179721f0f142fd8b041eb1aae1486e2cc286

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__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:	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:	Disable_Defender Create hunting rule
Author:	iam-py-test
Description:	Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen

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:	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:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

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:	SUSP_XORed_Mozilla_Oct19 Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious single byte XORed keyword 'Mozilla/5.0' - it uses yara's XOR modifier and therefore cannot print the XOR key. You can use the CyberChef recipe linked in the reference field to brute force the used key.
Reference:	https://gchq.github.io/CyberChef/#recipe=XOR_Brute_Force()

Rule name:	SUSP_XORed_Mozilla_RID2DB4 Create hunting rule
Author:	Florian Roth
Description:	Detects suspicious XORed keyword - Mozilla/5.0
Reference:	Internal Research