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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99b31974b09a85c7bf6ecd1fadb4611a0dbb39a67fd8156c173eb9ec2a7a226b. 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: 11


Intelligence 11 IOCs YARA 28 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99b31974b09a85c7bf6ecd1fadb4611a0dbb39a67fd8156c173eb9ec2a7a226b
SHA3-384 hash: 116ab983ef6f0a5624bc156dbf6484b38bdcc6ff1654b6692727a78732a98000e4979d21bd44814011f2b430776cdf6c
SHA1 hash: 0a3b2eb8e558945649d9abb83d9a33889a72fd57
MD5 hash: c040c55a9ae26b00b0ab0f6e61e7c73c
humanhash: dakota-idaho-winter-ink
File name:99b31974b09a85c7bf6ecd1fadb4611a0dbb39a67fd8156c173eb9ec2a7a226b.bin
Download: download sample
Signature Vidar
Create hunting rule
File size:3'620'120 bytes
First seen:2026-08-12 00:03:29 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash d8b31f8c03e0c76ff245ed05a15ffe6c (378 x Vidar, 15 x RemusStealer, 4 x Stealc)
ssdeep 49152:RTBNzxTQO+XbCWsDh+vJxcdjlLflqO4Ev5xsHKf7ixf:RTzJWKh+v4hf3JBwKfexf
TLSH T1BBF58D46BFE16EA8C4D6D33168AA03593B7ABC194F3127D32E5066352F723D09936F48
TrID 45.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
18.0% (.EXE) Win64 Executable (generic) (6522/11/2)
13.9% (.EXE) Win16 NE executable (generic) (5038/12/1)
5.6% (.ICL) Windows Icons Library (generic) (2059/9)
5.6% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Anonymous
Tags:exe vidar

Intelligence

File Origin
# of uploads :
1
# of downloads :
117
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Detection:
Vidar
Create hunting rule
Link:
https://www.capesandbox.com/analysis/80564/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Launching the default Windows debugger (dwwin.exe)
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug anti-vm crypt crypto golang masquerade mingw overlay packed signed
Link:
https://www.filescan.io/uploads/6a7bb8a1a9f692dc7e22a381/reports/3c423c10-1947-432a-9b26-6bc110fa6656/overview
Verdict:
Malicious
Labled as:
WinGo/Kryptik.UP trojan
Link:
https://www.hybrid-analysis.com/sample/99b31974b09a85c7bf6ecd1fadb4611a0dbb39a67fd8156c173eb9ec2a7a226b
Verdict:
Malicious
File Type:
dll x64
First seen:
2026-07-08T11:12:00Z UTC
Last seen:
2026-07-17T14:38:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/99b31974b09a85c7bf6ecd1fadb4611a0dbb39a67fd8156c173eb9ec2a7a226b/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/dce15dc0-3aed-4ffd-b550-c14c3fc05709
Score:
72%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/99b31974b09a85c7bf6ecd1fadb4611a0dbb39a67fd8156c173eb9ec2a7a226b
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/99b31974b09a85c7bf6ecd1fadb4611a0dbb39a67fd8156c173eb9ec2a7a226b/
Threat name:
Win64.Trojan.Ravartar
Create hunting rule
Status:
Malicious
First seen:
2026-07-09 08:21:00 UTC
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tgzrs5fqtkc4pp3ozup23ndbdig3wongp7mbk3axh246ykt2ejvq._file
Verdict:
malicious
Label(s):
Vidar
Create hunting rule
Link:
https://reports.threatray.com/0b38fc5b-36ae-4dff-beed-aa58e0ca9fe9
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:807254fc2311adf6d9c99e58557baa80 stealer
Link:
https://tria.ge/reports/260812-actrps1yew/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of NtSetInformationThreadHideFromDebugger
Badlisted process makes network request
Family: Vidar
Malware Config
C2 Extraction:
https://88.99.120.224
https://telegram.me/w09ksp
https://steamcommunity.com/profiles/76561198677476289
Unpacked files
SH256 hash:
99b31974b09a85c7bf6ecd1fadb4611a0dbb39a67fd8156c173eb9ec2a7a226b
MD5 hash:
c040c55a9ae26b00b0ab0f6e61e7c73c
SHA1 hash:
0a3b2eb8e558945649d9abb83d9a33889a72fd57
Link:
https://www.unpac.me/results/b2ffbcc4-4df7-477e-8999-3e59e166c0bf/
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/99b31974b09a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.29
Link:
https://yomi.yoroi.company/submissions/99b31974b09a85c7bf6ecd1fadb4611a0dbb39a67fd8156c173eb9ec2a7a226b

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_detect_tls_callbacks
Create hunting rule
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/
Rule name:Vidar
Create hunting rule
Author:kevoreilly
Description:Vidar Payload
Rule name:Windows_Trojan_Vidar_57ae970e
Create hunting rule
Author:Elastic Security

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/80564/

Comments