MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a04c1bd63b8165b4292b292d34bfae165d28f700594db2c5179e7c6e49c4b331. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a04c1bd63b8165b4292b292d34bfae165d28f700594db2c5179e7c6e49c4b331
SHA3-384 hash: 7f3b67037ab6c11541c0674ece8bb91958e1969b44790dfd21146fa8167d284e8f4fd250b27a585b6b2ebeaf0733c30f
SHA1 hash: d6c1f45823d3975e5948436b58731a3d0760341a
MD5 hash: 76ac2811ef6bae140df389cf883491e2
humanhash: florida-double-triple-mountain
File name:file
Download: download sample
Signature Vidar
Create hunting rule
File size:263'168 bytes
First seen:2024-03-21 11:50:46 UTC
Last seen:2024-03-21 13:39:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:fQhrx0DqTDksLi44Ong/Dl6Vhrih2z2usQzwKPg+w++m:4h1PVi44bgLRz/sQz/t+
TLSH T18344F14B72E88650C28496FCC1E3961D03F697173A73D74D7D8A12871D22BE9ED0EB4A
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter Bitsight
Tags:exe vidar


Avatar
Bitsight
url: https://vk.com/doc329118071_676144087?hash=vQn6YgrZmOutLgfbhq1dkaMEzZLbZWkzR245se7BCrw&dl=gM8C2zwAqnHOyOYZdJNnmn3zU5HhOOvZi8g4d7X2tOk&api=1&no_preview=1#mene

Intelligence

File Origin
# of uploads :
3
# of downloads :
364
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
a04c1bd63b8165b4292b292d34bfae165d28f700594db2c5179e7c6e49c4b331.exe
Verdict:
Malicious activity
Analysis date:
2024-03-21 11:53:23 UTC
Tags:
vidar
Link:
https://app.any.run/tasks/09dd0981-fcad-4f32-a507-a644b3b9eb42

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.W32.MSIL_Kryptik.KRP.gen.Eldorado.6467.3725.UNOFFICIAL
Create hunting rule

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
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Searching for the window
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
net_reactor packed packed
Link:
https://www.filescan.io/uploads/65fc1f2b757c624818b52afc/reports/d9e6f7da-3896-4e52-b38c-547f68cbfa42/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a04c1bd63b8165b4292b292d34bfae165d28f700594db2c5179e7c6e49c4b331
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d569385e-2220-47e8-987f-aacc90612e3b
Result
Threat name:
PureLog Stealer, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1413181
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
Allocates memory in foreign processes
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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 PureLog Stealer
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
Score:
90%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a04c1bd63b8165b4292b292d34bfae165d28f700594db2c5179e7c6e49c4b331
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a04c1bd63b8165b4292b292d34bfae165d28f700594db2c5179e7c6e49c4b331/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Suspicious
First seen:
2024-03-21 11:51:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ubgbxvr3qfs3ikjlfewtjp5oczosr5yalfg3frixtz6g4soewmyq._file
Verdict:
malicious
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:4cf8d799a3641f9821e54be56c960e28 stealer
Link:
https://tria.ge/reports/240321-nz5pdaag78/
Behaviour
Modifies system certificate store
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Detect Vidar Stealer
Vidar
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199654112719
https://t.me/r2d0s
Unpacked files
SH256 hash:
b14fe4b460672c299fc57f3695fd1801744b6c29f4b79c152bbb69b871bf8df0
MD5 hash:
081391a39d55d5260bce9621dfbfe5e3
SHA1 hash:
ae1571e37b4b21962084082bf01e62807e8882f5
Detections:
VidarStealer
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Link:
https://www.unpac.me/results/cf8eeb60-f252-442e-80f9-1d1125363fd7/
Parent samples :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 hash:
a04c1bd63b8165b4292b292d34bfae165d28f700594db2c5179e7c6e49c4b331
MD5 hash:
76ac2811ef6bae140df389cf883491e2
SHA1 hash:
d6c1f45823d3975e5948436b58731a3d0760341a
Link:
https://www.unpac.me/results/cf8eeb60-f252-442e-80f9-1d1125363fd7/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a04c1bd63b81/report/overview.html
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/a04c1bd63b8165b4292b292d34bfae165d28f700594db2c5179e7c6e49c4b331

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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Vidar

Executable exe a04c1bd63b8165b4292b292d34bfae165d28f700594db2c5179e7c6e49c4b331

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download

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 (GUARD_CF)high

Comments