MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114. 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: 18


Intelligence 18 IOCs YARA 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114
SHA3-384 hash: 56f8644da58da15d99fcc0c504f1464d06d5863533ee8d246a4776f0d8464899d17d46d47ab1dbff0210aa3fc8dc01e7
SHA1 hash: cf51727aab14549d8748ab60876b3915532b08be
MD5 hash: c7904602501fb4a18a2ceb29d1c7748b
humanhash: fix-east-high-minnesota
File name:66af4e35e761b_doz.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:4'748'800 bytes
First seen:2024-08-04 13:29:39 UTC
Last seen:2024-08-04 13:40:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 49152:cr/3+oa7VxrIg3J5h0ib1kAVBe4kmF3k+fthNbLIGivvPucQqppfDNKHoAjc16Nv:cr/+oa7brb3dkMCFPJjDwI716X
Threatray 13 similar samples on MalwareBazaar
TLSH T102268C527788EE12C0A96237C9EEC4A407FCEF557752DA763C94B26CB01236A0A0F5DD
TrID 49.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
20.9% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
8.7% (.SCR) Windows screen saver (13097/50/3)
7.0% (.EXE) Win64 Executable (generic) (10523/12/4)
4.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 7d6141616961617d (1 x Vidar)
Reporter aachum
Tags:147-45-44-104 exe vidar


Avatar
iamaachum
147.45.44.104/lopsa/66af4e35e761b_doz.exe#mene

Vidar C2:
https://steamcommunity.com/profiles/76561199747278259
https://t.me/armad2a

Intelligence

File Origin
# of uploads :
2
# of downloads :
359
Origin country :
ES ES
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
66af4e35e761b_doz.exe
Verdict:
Malicious activity
Analysis date:
2024-08-04 13:32:31 UTC
Tags:
stealer vidar
Link:
https://app.any.run/tasks/38f4b59b-16a4-4cbd-b142-96a50d63e2b9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66af825f037b02d0daed8afb
Tags:
Execution Generic Infostealer Network Other Static Stealth Nekark
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Connection attempt to an infection source
Running batch commands
Creating a process with a hidden window
Query of malicious DNS domain
Unauthorized injection to a system process
Sending an HTTP POST request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
net net_reactor obfuscated packed packed vbnet
Link:
https://www.filescan.io/uploads/66af825bfb08d6d234be1b96/reports/5ec77568-5ffd-4297-a66a-2e804ec02819/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
njRAT
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b7c71f28-e094-4bbe-9b3d-3c288705d5ad
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1487549
Signature
.NET source code contains method to dynamically call methods (often used by packers)
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Searches for specific processes (likely to inject)
Sigma detected: Silenttrinity Stager Msbuild Activity
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Powershell download and execute
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1487549 Sample: 66af4e35e761b_doz.exe Startdate: 04/08/2024 Architecture: WINDOWS Score: 100 36 steamcommunity.com 2->36 38 fp2e7a.wpc.phicdn.net 2->38 40 3 other IPs or domains 2->40 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 Antivirus detection for URL or domain 2->52 54 11 other signatures 2->54 9 66af4e35e761b_doz.exe 3 2->9         started        signatures3 process4 file5 26 C:\Users\user\...\66af4e35e761b_doz.exe.log, ASCII 9->26 dropped 56 Found many strings related to Crypto-Wallets (likely being stolen) 9->56 58 Writes to foreign memory regions 9->58 60 Allocates memory in foreign processes 9->60 62 Injects a PE file into a foreign processes 9->62 13 MSBuild.exe 1 38 9->13         started        18 MSBuild.exe 9->18         started        signatures6 process7 dnsIp8 42 steamcommunity.com 104.102.49.249, 443, 49730 AKAMAI-ASUS United States 13->42 44 168.119.176.241, 443, 49731, 49732 HETZNER-ASDE Germany 13->44 46 arpdabl.zapto.org 38.180.132.96, 49761, 80 COGENT-174US United States 13->46 28 C:\ProgramData\vcruntime140.dll, PE32 13->28 dropped 30 C:\ProgramData\softokn3.dll, PE32 13->30 dropped 32 C:\ProgramData\nss3.dll, PE32 13->32 dropped 34 3 other files (none is malicious) 13->34 dropped 64 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->64 66 Found many strings related to Crypto-Wallets (likely being stolen) 13->66 68 Tries to harvest and steal ftp login credentials 13->68 74 3 other signatures 13->74 20 cmd.exe 1 13->20         started        70 Contains functionality to inject code into remote processes 18->70 72 Searches for specific processes (likely to inject) 18->72 file9 signatures10 process11 process12 22 conhost.exe 20->22         started        24 timeout.exe 1 20->24         started       
Score:
86%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2024-08-04 13:30:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bbb3oy4ibjhbwvm5fekav77vzwdhxsw2edw2nwzfetkokbc26eka._file
Verdict:
malicious
Similar samples:
0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114
Vidar
2ccc095e2b7de720513d290dea7ad6cde991ebd3773f5140489a461873cb2ba6
Vidar
3a02d3b91a654ce0c68caaafc91ec9b40981c05f7eeb736ff6b63d4a0b61f575
Vidar
a8fb80b6e9d920c26922b29171e8301d5d4d9d4f20cd1b07cad94234b27c61be
Vidar
c1a96310dd45b906c51fd21fd604550225e1eec1941245850b24773e22768ad7
Vidar
d28e639d2945002bd214956679c4eacda104071f69309db6b807e32499019e4b
Vidar
+ 3 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240804-qrsqys1amb/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Loads dropped DLL
Unsecured Credentials: Credentials In Files
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Detect Vidar Stealer
Vidar
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199747278259
https://t.me/armad2a
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2d7ca1d6-66ae-4a9d-a30b-ac649481ed3c
Unpacked files
SH256 hash:
86e9d60c29c635146be5eeb4d2df981010bb60d586cf553a75419772bbc0b302
MD5 hash:
6c2bc5b8b43a3118520f0951e4a5b2de
SHA1 hash:
cff937c3d22b83804890ca0584645ea2abaf224d
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/a3cd6716-bc1c-45c1-b39b-04504803531f/
Parent samples :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 hash:
62d07d44876aa325328ec7b47515b1b7811e371856d0c4758e8b958489a00b34
MD5 hash:
ea490386b3f3f364b4b2a1abe67d3c63
SHA1 hash:
5bffca5bb15c2c2c2445bfc6e19e3213ec3d0b60
Detections:
VidarStealer
Create hunting rule
Link:
https://www.unpac.me/results/a3cd6716-bc1c-45c1-b39b-04504803531f/
Parent samples :
1193d78ae12a46941717ff875f19ab33ce9f51f9c4ca3ef3b125abbc37560d62
0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114
fa565ec0da19b4c700bf3705101bd49c9c09aaf26691abb6fe1c3622926cc8d2
59778733797d1033f33e5803810777b199bab7a53710c385c9f8b1cea648d4ec
SH256 hash:
a174b12117376d2be057617086e5f0b9bf76b7467c5b38d5c03f663ea43e0c07
MD5 hash:
3bad6e71e6651545ad62771578287972
SHA1 hash:
30690c0dbe0f2df32027c865ba0222db961dbd45
Link:
https://www.unpac.me/results/a3cd6716-bc1c-45c1-b39b-04504803531f/
SH256 hash:
0ab41930f0a18d7629031bf5cd9a8c7090c13983c1d7567b9018185f0fa18f0d
MD5 hash:
2890a00ef6943ed98e2b7c6e3e49ae1c
SHA1 hash:
9072a751e68fe39222aebc87ffb898a423310ce9
Link:
https://www.unpac.me/results/a3cd6716-bc1c-45c1-b39b-04504803531f/
SH256 hash:
0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114
MD5 hash:
c7904602501fb4a18a2ceb29d1c7748b
SHA1 hash:
cf51727aab14549d8748ab60876b3915532b08be
Detections:
SUSP_NET_Msil_Suspicious_Use_StrReverse
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/a3cd6716-bc1c-45c1-b39b-04504803531f/
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/0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114

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:DebuggerCheck__PEB
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DotNet_Reactor
Create hunting rule
Author:@bartblaze
Description:Identifies .NET Reactor, which offers .NET code protection such as obfuscation, encryption and so on.
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:msil_suspicious_use_of_strreverse
Create hunting rule
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:PureCrypter
Create hunting rule
Author:@bartblaze
Description:Identifies PureCrypter, .NET loader and obfuscator.
Reference:https://malpedia.caad.fkie.fraunhofer.de/details/win.purecrypter
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_NET_Msil_Suspicious_Use_StrReverse
Create hunting rule
Author:dr4k0nia, modified by Florian Roth
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Reference:https://github.com/dr4k0nia/yara-rules

File information

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

Web download

Vidar

Executable exe 0843b763880a4e1b559d29140afff5cd867bcada20eda6db2524d4e5045af114

(this sample)

  
Link
https://tria.ge/240804-qkf4kswcrq
  
Dropped by
PrivateLoader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3090134/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments