MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc99777fedd39c16779d718ff410d4a0f349d013f98e6f7c0cae9b8fa1485897. 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: 10

Intelligence 10 IOCs YARA 25 File information Comments

SHA256 hash:	bc99777fedd39c16779d718ff410d4a0f349d013f98e6f7c0cae9b8fa1485897
SHA3-384 hash:	2235196575ff8ccc99ce3e46f35851992cb6e9e4658d2f7c2665987d4b71222fd333fffb5bafe3ef50e903b9e7b47f79
SHA1 hash:	896b133a04d59c943225144cced7d49d1c45b1d9
MD5 hash:	cacdeb6477cad7b826527f383fe9b62c
humanhash:	network-mars-butter-mockingbird
File name:	bc99777fedd39c16779d718ff410d4a0f349d013f98e6f7c0cae9b8fa1485897.bin
Download:	download sample
Signature	Vidar Create hunting rule
File size:	4'991'424 bytes
First seen:	2026-08-29 13:21:25 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	9cbefe68f395e67356e2a5d8d1b285c0 (137 x Vidar, 64 x LummaStealer, 49 x AuroraStealer)
ssdeep	49152:aFF79BDfpmsbrX3PPv0Nd5vzO21iKPelgeQiXg4wwez+zxyB0bW4KsgwnUrDD17C:0nxNHUv1zeLJh9zxyB0CTEB
TLSH	T137369D037D9581F1C4A99E34C97B0293B638BC88873033E72F55AAB62F367C1AA75751
gimphash	d81827f226bdaf5b47e1de0514afc1211212d8d0976a8fcdb18cd361e9c478c7
TrID	29.5% (.EXE) Win64 Executable (generic) (6522/11/2) 22.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 20.3% (.EXE) Win32 Executable (generic) (4504/4/1) 9.1% (.EXE) OS/2 Executable (generic) (2029/13) 9.0% (.EXE) Generic Win/DOS Executable (2002/3)
Magika	pebin
Reporter	Anonymous
Tags:	exe signed vidar

Code Signing Certificate

Organisation:	Bright Signal Industries
Issuer:	Bright Signal Industries
Algorithm:	sha256WithRSAEncryption
Valid from:	2026-08-21T18:06:18Z
Valid to:	2027-08-28T18:06:18Z
Serial number:	6d93e366c64b3313b62a744e3269f5ad
Thumbprint Algorithm:	SHA256
Thumbprint:	f4e401b35c810241fa3ef93275c1857ec85ea77d527d0591f7e5e528b2648a01
Source:	This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin

# of uploads :

# of downloads :

187

Origin country :

Vendor Threat Intelligence

No detections

Malware family:

n/a

ID:

File name:

exe

Verdict:

Malicious activity

Analysis date:

2026-08-29 13:30:21 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/337c7560-3400-45ed-bbb4-55e75ad92ad3

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/83255/

Detection(s):

SecuriteInfo.com.Win64.Evo-gen.93721594.UNOFFICIAL

Verdict:

Clean

Score:

89.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ac6af99c221a7c081075bc4

Tags:

n/a

Result

Verdict:

Clean

Maliciousness:

Behaviour

Сreating synchronization primitives

Connection attempt

Sending a custom TCP request

DNS request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm crypto golang invalid-signature masquerade self-signed-cert signed

Link:

https://www.filescan.io/uploads/6a92dd0abbf586dd935d7b2c/reports/43033038-406b-497b-8d6a-ceda3ed0e85c/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_70%

Link:

https://www.hybrid-analysis.com/sample/bc99777fedd39c16779d718ff410d4a0f349d013f98e6f7c0cae9b8fa1485897

Verdict:

Malicious

File Type:

exe x64

First seen:

2026-08-28T20:41:00Z UTC

Last seen:

2026-08-31T07:51:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/bc99777fedd39c16779d718ff410d4a0f349d013f98e6f7c0cae9b8fa1485897/results?tab=lookup

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/47ee13a6-c52d-47e0-9b5c-6fab4d9d3ae7

Score:

92%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/bc99777fedd39c16779d718ff410d4a0f349d013f98e6f7c0cae9b8fa1485897

Verdict:

inconclusive

YARA:

4 match(es)

Tags:

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

Link:

https://app.malva.re/file/cacdeb6477cad7b826527f383fe9b62c

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/bc99777fedd39c16779d718ff410d4a0f349d013f98e6f7c0cae9b8fa1485897/

Threat name:

Win64.Trojan.Egairtigado

Status:

Malicious

First seen:

2026-08-29 04:52:04 UTC

File Type:

PE+ (Exe)

AV detection:

13 of 24 (54.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xsmxo77n2oobm545ogh7ieguudzutuat7ghg67amv2ny7ikilclq._file

Verdict:

malicious

Label(s):

Vidar

Link:

https://reports.threatray.com/d78ec3df-3dd5-4095-b540-72f624f4fbaf

Result

Malware family:

n/a

Score:

9/10

Tags:

defense_evasion

Link:

https://tria.ge/reports/260829-qmc5pshq6z/

Behaviour

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Checks for VirtualBox DLLs, possible anti-VM trick

Checks system information in the registry

Checks BIOS information in registry

Looks for VMWare Tools registry key

Enumerates VirtualBox registry keys

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Looks for VirtualBox Guest Additions in registry

Unpacked files

SH256 hash:

bc99777fedd39c16779d718ff410d4a0f349d013f98e6f7c0cae9b8fa1485897

MD5 hash:

cacdeb6477cad7b826527f383fe9b62c

SHA1 hash:

896b133a04d59c943225144cced7d49d1c45b1d9

Link:

https://www.unpac.me/results/303040c3-2699-45b0-bc8f-5e013b99b1c3/

Malware family:

Vidar

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/bc99777fedd3/report/overview.html

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

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/bc99777fedd39c16779d718ff410d4a0f349d013f98e6f7c0cae9b8fa1485897

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:	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_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

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/83255/

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