MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62. 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 35 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62
SHA3-384 hash: 3b1076c94ac7d2e983779a9f30efb83528189d1d205e5150cce4bf7dc85f9ad5105a590fcf2aa35d05eb066e41ce4959
SHA1 hash: 805b1219984ef7497a4cc6ff738a344bbab9ff59
MD5 hash: 588c1a0dab3e16a2b459e20609131459
humanhash: massachusetts-venus-coffee-florida
File name:file
Download: download sample
Signature Vidar
Create hunting rule
File size:2'648'704 bytes
First seen:2026-04-27 10:27:05 UTC
Last seen:2026-04-28 02:19:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ebc247a77b4d4a804b261f97a1fd075c (89 x Vidar, 26 x Smoke Loader, 15 x RemusStealer)
ssdeep 49152:Dnuq9T+OHY1V/A176TV/iCO5xKU7w+ik3D:DnP9JbDrvK+wa
TLSH T16FC57B017CD015EDC4EE763249F6B985BB34B8590B3A23C31A41AAB83E777D11C76B4A
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:c dropped-by-gcleaner exe MIX1.file signed vidar

Code Signing Certificate

Organisation:claude.ai
Issuer:E8
Algorithm:sha256WithRSAEncryption
Valid from:2026-03-17T16:26:49Z
Valid to:2026-06-15T16:26:48Z
Serial number: 06eda884b48b73f65081675f0815b1653b2f
Intelligence: 6 malware samples on MalwareBazaar are signed with this code signing certificate
Thumbprint Algorithm:SHA256
Thumbprint: 2ae586c2e98ba85fa214192c82de9e8d157cd79f11eb1b035061d83625af80b9
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform


Avatar
Bitsight
url: http://91.92.241.242/service

Intelligence

File Origin
# of uploads :
10
# of downloads :
172
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2026-04-27 11:15:20 UTC
Tags:
telegram vidar stealer stealc golang
Link:
https://app.any.run/tasks/f2698eec-6d1a-417b-8f23-e1c079e048ee

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/63758/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-04-27T06:28:00Z UTC
Last seen:
2026-04-29T01:41:00Z UTC
Hits:
~100
Detections:
Backdoor.Win64.Gsb.gen Trojan.Win64.Agent.sb BSS:Trojan.Win32.Generic Backdoor.Win64.Gsb.aca Backdoor.Win64.Gsb.sb
Link:
https://opentip.kaspersky.com/a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/f3214869-8655-47d7-913e-b68c40c7eb2f
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62/
Verdict:
Malicious
Threat:
Family.VIDAR
Link:
https://tip.neiki.dev/file/a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62
Threat name:
Win64.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2026-04-27 10:37:19 UTC
File Type:
PE+ (Exe)
AV detection:
21 of 38 (55.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=um2xg55bkmeo4vhkddms2f7ejk7wx63icesizwpr4jelpg6ctvra._file
Verdict:
malicious
Label(s):
vidar
Create hunting rule
Similar samples:
error
Vidar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar discovery spyware stealer
Link:
https://tria.ge/reports/260427-mhjj5sbx9n/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Time Discovery
Drops file in Windows directory
Checks installed software on the system
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Detects Vidar Stealer
Family: Vidar
Unpacked files
SH256 hash:
a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62
MD5 hash:
588c1a0dab3e16a2b459e20609131459
SHA1 hash:
805b1219984ef7497a4cc6ff738a344bbab9ff59
Link:
https://www.unpac.me/results/fa1fa6f8-4002-454c-a0e0-9b5b42689776/
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a3357377a153/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/a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62

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_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:has_telegram_urls
Create hunting rule
Author:Aaron DeVera<aaron@backchannel.re>
Description:Detects Telegram URLs
Rule name:HiveRansomware
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule To Detect Hive V4 Ransomware
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: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:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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.

Web download

Vidar

Executable exe a3357377a15308ee54ea18d92d17e44abf6bfb6811248cd9f1e248b79bc29d62

(this sample)

  
Dropped by
Gcleaner
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/63758/

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