MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc646f8bbe41c01dc21c63d7923cb23e345aad639babb744e7151a1cb57a168f. 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: 13


Intelligence 13 IOCs YARA 27 File information Comments

SHA256 hash: bc646f8bbe41c01dc21c63d7923cb23e345aad639babb744e7151a1cb57a168f
SHA3-384 hash: 1272e869cc4b35cd517179d9e290d226f2d9d01766efa7523c6590b9f3edfbc6e34b83d713fbb09a7a6b7bb17a4dab0b
SHA1 hash: da7521244cdb2570f31db1acbd6f24c8df7ad7c4
MD5 hash: e8379102115345baec32fb39bc832ad3
humanhash: california-fix-india-ohio
File name:file
Download: download sample
Signature Vidar
File size:9'028'736 bytes
First seen:2026-01-18 13:19:35 UTC
Last seen:2026-01-18 13:24:12 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9cbefe68f395e67356e2a5d8d1b285c0 (60 x LummaStealer, 49 x AuroraStealer, 44 x Vidar)
ssdeep 49152:O1+wGmArb/TIvO90d7HjmAFd4A64nsfJrOofE54mIZHe2E3aK0HVXQyJvozrjuBl:ODchMTDOHwpXSBSWMQ
TLSH T167966D93BE44472ADADBF23AD4B152856230F144173115D7BA69066A8C2BBC8173FF2F
gimphash fcb074a6abbd71b8291aaac0943ba3efda3fbcdd6909125c6e2f75d4f90f647e
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:chain.com
Issuer:R12
Algorithm:sha256WithRSAEncryption
Valid from:2025-12-09T15:45:45Z
Valid to:2026-03-09T15:45:44Z
Serial number: 05e2c76e0911c78e025f31b2d82fa491501a
Intelligence: 17 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 2ba78f5b6744da97a11cbf5990b668e49d75f36a5d7c4036c5f54a8a9005ccf9
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
Bitsight
url: http://130.12.180.43/files/5610404380/bf9wnaz.exe

Intelligence


File Origin
# of uploads :
12
# of downloads :
109
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2026-01-18 13:21:46 UTC
Tags:
golang xor-url generic stealer stealc vidar

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Tags:
ransomware dropper virus
Result
Gathering data
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Gathering data
Result
Malware family:
Score:
  10/10
Tags:
family:vidar stealer
Behaviour
Detects Vidar Stealer
Vidar
Vidar family
Unpacked files
SH256 hash:
bc646f8bbe41c01dc21c63d7923cb23e345aad639babb744e7151a1cb57a168f
MD5 hash:
e8379102115345baec32fb39bc832ad3
SHA1 hash:
da7521244cdb2570f31db1acbd6f24c8df7ad7c4
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:command_and_control
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
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:dependsonpythonailib
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:DetectGoMethodSignatures
Author:Wyatt Tauber
Description:Detects Go method signatures in unpacked Go binaries
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:GoBinTest
Rule name:golang
Rule name:Golangmalware
Author:Dhanunjaya
Description:Malware in Golang
Rule name:golang_binary_string
Description:Golang strings present
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:golang_duffcopy_amd64
Rule name:Golang_Find_CSC846
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:Golang_Find_CSC846_Simple
Author:Ashar Siddiqui
Description:Find Go Signatuers
Rule name:HiveRansomware
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
Rule name:identity_golang
Author:Eric Yocam
Description:find Golang malware
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:ProgramLanguage_Golang
Author:albertzsigovits
Description:Application written in Golang programming language
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Suspicious_Golang_Binary
Author:Tim Machac
Description:Triage: Golang-compiled binary with suspicious OS/persistence/network strings (not family-specific)
Rule name:SUSP_XORed_Mozilla_Oct19
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
Author:Florian Roth
Description:Detects suspicious XORed keyword - Mozilla/5.0
Reference:Internal Research
Rule name:ThreadControl__Context
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

Executable exe bc646f8bbe41c01dc21c63d7923cb23e345aad639babb744e7151a1cb57a168f

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download

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