MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f03a2b0490de5b7aaecf2bf6e03c1ed4eb1206afdfecf5e5be87a57af998537. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8f03a2b0490de5b7aaecf2bf6e03c1ed4eb1206afdfecf5e5be87a57af998537
SHA3-384 hash: d67098c0199b03b6abdf0db7472453e4e5c43ff62837eb0f1147b5e06158b85429fec62d739dec196f06aa0fc4c02a7e
SHA1 hash: ebaebff12f7904e82802eb353e2560f35b1cb790
MD5 hash: 985591b59446fcf5dadd314fdbda90e4
humanhash: mexico-florida-coffee-bravo
File name:file
Download: download sample
Signature Vidar
Create hunting rule
File size:197'160 bytes
First seen:2024-08-27 19:06:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 3072:my9wKzdR6TrTM86CH3f4ANNbVAkRc8yQICXG7+UXNBQbZ4gvRWmpmjgioRKYzEO:my9wmcTrY8pHQsRSMw7Zd4tkb8EO
Threatray 64 similar samples on MalwareBazaar
TLSH T1CE1423A013564B09DFF46D3428DAE7684BBEB078F57386873024E5E2F740E485EB7962
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)
Magika pebin
Reporter Bitsight
Tags:exe vidar


Avatar
Bitsight
url: http://147.45.44.104/prog/66ce237125ba7_vjrew2ge.exe#space

Intelligence

File Origin
# of uploads :
1
# of downloads :
467
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-08-27 19:08:10 UTC
Tags:
vidar
Link:
https://app.any.run/tasks/dc97cd56-5161-4e78-871e-1c2e4f023009

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Pwsx-10035189-0
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66ce23d8fe69a9e560499a88
Tags:
Encryption Static
Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Searching for the window
Launching a process
Creating a file
Creating a file in the %temp% directory
Сreating synchronization primitives
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/8f03a2b0490de5b7aaecf2bf6e03c1ed4eb1206afdfecf5e5be87a57af998537
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:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/076e8fc8-7374-4693-9560-f803afe8edd5
Result
Threat name:
LummaC, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1500085
Signature
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
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
LummaC encrypted strings found
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Suricata IDS alerts for network traffic
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 LummaC Stealer
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: 1500085 Sample: file.exe Startdate: 27/08/2024 Architecture: WINDOWS Score: 100 59 t.me 2->59 61 steamcommunity.com 2->61 63 2 other IPs or domains 2->63 77 Suricata IDS alerts for network traffic 2->77 79 Found malware configuration 2->79 81 Malicious sample detected (through community Yara rule) 2->81 83 11 other signatures 2->83 10 file.exe 2 2->10         started        signatures3 process4 signatures5 97 Contains functionality to inject code into remote processes 10->97 99 Writes to foreign memory regions 10->99 101 Allocates memory in foreign processes 10->101 103 Injects a PE file into a foreign processes 10->103 13 RegAsm.exe 1 280 10->13         started        18 conhost.exe 10->18         started        process6 dnsIp7 71 stadiatechnologies.com 95.164.119.162, 49772, 80 VAKPoltavaUkraineUA Gibraltar 13->71 73 94.130.188.148, 443, 49740, 49741 HETZNER-ASDE Germany 13->73 75 2 other IPs or domains 13->75 51 C:\Users\...\66ce11214efea_lfhnsda[1].exe, PE32 13->51 dropped 53 C:\Users\user\...\66ce111e6839c_vsfdki[1].exe, PE32 13->53 dropped 55 C:\ProgramData\vcruntime140.dll, PE32 13->55 dropped 57 7 other files (6 malicious) 13->57 dropped 107 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->107 109 Found many strings related to Crypto-Wallets (likely being stolen) 13->109 111 Tries to harvest and steal ftp login credentials 13->111 113 4 other signatures 13->113 20 JDBGHIIDAE.exe 2 13->20         started        23 JJEGCBGIDH.exe 2 13->23         started        25 cmd.exe 13->25         started        file8 signatures9 process10 signatures11 85 Multi AV Scanner detection for dropped file 20->85 87 Writes to foreign memory regions 20->87 89 Allocates memory in foreign processes 20->89 27 RegAsm.exe 145 20->27         started        31 conhost.exe 20->31         started        33 RegAsm.exe 20->33         started        43 2 other processes 20->43 91 Machine Learning detection for dropped file 23->91 93 Injects a PE file into a foreign processes 23->93 95 LummaC encrypted strings found 23->95 35 RegAsm.exe 23->35         started        37 conhost.exe 23->37         started        39 conhost.exe 25->39         started        41 timeout.exe 25->41         started        process12 dnsIp13 65 t.me 149.154.167.99, 443, 49781 TELEGRAMRU United Kingdom 27->65 67 147.45.68.138, 49782, 80 FREE-NET-ASFREEnetEU Russian Federation 27->67 105 Tries to harvest and steal browser information (history, passwords, etc) 27->105 69 millyscroqwp.shop 188.114.96.3, 443, 49766, 49767 CLOUDFLARENETUS European Union 35->69 45 WerFault.exe 22 16 35->45         started        47 WerFault.exe 35->47         started        49 WerFault.exe 35->49         started        signatures14 process15
Score:
64%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/8f03a2b0490de5b7aaecf2bf6e03c1ed4eb1206afdfecf5e5be87a57af998537
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8f03a2b0490de5b7aaecf2bf6e03c1ed4eb1206afdfecf5e5be87a57af998537/
Threat name:
Win32.Trojan.LummaStealer
Create hunting rule
Status:
Malicious
First seen:
2024-08-27 19:07:04 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=r4b2fmcjbxs3pkxm6k7w4a6b5vhlcidk7x7m6xs35b5fpl4zqu3q._file
Verdict:
malicious
Similar samples:
0ee2c8f8ca955be74a029aa6e0f6ee4558bfb24cd37b835a8bda9d56b520a3d4
Vidar
149d5c2949338abb59f4ff360ea39229796c73f8e3a9c483442295a8e0f9fcc7
Vidar
29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587
Vidar
3543cfe1a5a4a95e34c214cfaf0a1846373950ed16f5b8f255a351b52753470d
Vidar
b094b7214bc9c17ad9bcb18ca50932527de7ea431102fba2d2d791e778b3e4a2
Vidar
+ 54 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:6600662cfdc755ed7b325027c2ed1a50 credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240827-xsmdwswglh/
Behaviour
Checks processor information in registry
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Browser Information Discovery
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks installed software on the system
Reads user/profile data of web browsers
Downloads MZ/PE file
Credentials from Password Stores: Credentials from Web Browsers
Detect Vidar Stealer
Vidar
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199761128941
https://t.me/iyigunl
Unpacked files
SH256 hash:
9bffc08df56901395f2010cc751ff68195cacf905c062b87484ab9681c2bc89f
MD5 hash:
987ce9f2d0fd792f2c4fc552f7c440e5
SHA1 hash:
a683ade9dba6f9f3936c151494f91a226ce7f9a5
Detections:
VidarStealer
Create hunting rule
Link:
https://www.unpac.me/results/62d7a3d3-0799-4aa0-b685-d53065edc04b/
SH256 hash:
0ab41930f0a18d7629031bf5cd9a8c7090c13983c1d7567b9018185f0fa18f0d
MD5 hash:
2890a00ef6943ed98e2b7c6e3e49ae1c
SHA1 hash:
9072a751e68fe39222aebc87ffb898a423310ce9
Link:
https://www.unpac.me/results/62d7a3d3-0799-4aa0-b685-d53065edc04b/
SH256 hash:
8f03a2b0490de5b7aaecf2bf6e03c1ed4eb1206afdfecf5e5be87a57af998537
MD5 hash:
985591b59446fcf5dadd314fdbda90e4
SHA1 hash:
ebaebff12f7904e82802eb353e2560f35b1cb790
Link:
https://www.unpac.me/results/62d7a3d3-0799-4aa0-b685-d53065edc04b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8f03a2b0490d/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/8f03a2b0490de5b7aaecf2bf6e03c1ed4eb1206afdfecf5e5be87a57af998537

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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 8f03a2b0490de5b7aaecf2bf6e03c1ed4eb1206afdfecf5e5be87a57af998537

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3131620/

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