MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f039fb1ca66436d1636816584bbe2d3ffcd87736fc2e28c89afebbf08e6a541c. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f039fb1ca66436d1636816584bbe2d3ffcd87736fc2e28c89afebbf08e6a541c
SHA3-384 hash: ea8e8fac6743bce52e6d5f9110aa80d80d53daa4f1220a1e1c708753bcf4ecc9b9d05c61924784530c0500c183f5971f
SHA1 hash: 959f7c7f8aab299d7f150e7bdab28c815ea72511
MD5 hash: b01121b9f9a1e48a7737d6b43e8a7fe5
humanhash: asparagus-ohio-grey-march
File name:file
Download: download sample
Signature Vidar
Create hunting rule
File size:261'672 bytes
First seen:2024-08-30 17:26:17 UTC
Last seen:2024-08-30 18:18:55 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:qooSa9gvKfDCeAweLWY8nWljv6+gjo6O5VHScksUfV5/wAUVEO:qHWvcDC94Wpgjo6OvksUf/+VEO
Threatray 10 similar samples on MalwareBazaar
TLSH T10044DF8636D89360DD4452B1D4FB892543F3B54737B3E65A7E8809EA0F427E0DC8AF89
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/66d1e3d3208e9_vfdw12.exe#d12

Intelligence

File Origin
# of uploads :
2
# of downloads :
407
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-08-30 17:27:19 UTC
Tags:
vidar
Link:
https://app.any.run/tasks/78123a97-7566-4801-9698-2d702dff887d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.17029.10910.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
70%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66d200e954dfe8b6d5210b55
Tags:
Encryption Static
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Creating a file in the %temp% directory
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Running batch commands
Creating a process with a hidden window
Forced shutdown of a system process
Connection attempt to an infection source
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/f039fb1ca66436d1636816584bbe2d3ffcd87736fc2e28c89afebbf08e6a541c
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/8b0542fc-de1d-407d-a5c5-ff46449dd6ae
Result
Threat name:
LummaC, PureLog Stealer, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1501940
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.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
Machine Learning detection for sample
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 PureLog Stealer
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1501940 Sample: file.exe Startdate: 30/08/2024 Architecture: WINDOWS Score: 100 58 traineiwnqo.shop 2->58 60 stadiatechnologies.com 2->60 62 locatedblsoqp.shop 2->62 84 Suricata IDS alerts for network traffic 2->84 86 Found malware configuration 2->86 88 Malicious sample detected (through community Yara rule) 2->88 90 14 other signatures 2->90 10 file.exe 2 2->10         started        signatures3 process4 file5 48 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 10->48 dropped 104 Found many strings related to Crypto-Wallets (likely being stolen) 10->104 106 Contains functionality to inject code into remote processes 10->106 108 Writes to foreign memory regions 10->108 110 2 other signatures 10->110 14 RegAsm.exe 1 248 10->14         started        19 RegAsm.exe 10->19         started        21 conhost.exe 10->21         started        signatures6 process7 dnsIp8 68 stadiatechnologies.com 95.164.119.162, 49718, 80 VAKPoltavaUkraineUA Gibraltar 14->68 70 147.45.68.138, 49713, 49732, 80 FREE-NET-ASFREEnetEU Russian Federation 14->70 72 147.45.44.104, 49714, 80 FREE-NET-ASFREEnetEU Russian Federation 14->72 50 C:\Users\user\...\66d1e3d95f11a_lgdfef[1].exe, PE32 14->50 dropped 52 C:\Users\user\...\66d1e3c3c7dc6_vregs[1].exe, PE32 14->52 dropped 54 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 14->54 dropped 56 14 other files (10 malicious) 14->56 dropped 74 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->74 76 Found many strings related to Crypto-Wallets (likely being stolen) 14->76 78 Tries to harvest and steal ftp login credentials 14->78 82 3 other signatures 14->82 23 AKFCFBAAEH.exe 2 14->23         started        26 CFHIIJDBKE.exe 2 14->26         started        28 cmd.exe 1 14->28         started        80 Searches for specific processes (likely to inject) 19->80 file9 signatures10 process11 signatures12 92 Multi AV Scanner detection for dropped file 23->92 94 Machine Learning detection for dropped file 23->94 96 Writes to foreign memory regions 23->96 30 RegAsm.exe 196 23->30         started        33 conhost.exe 23->33         started        35 RegAsm.exe 23->35         started        98 Allocates memory in foreign processes 26->98 100 Injects a PE file into a foreign processes 26->100 102 LummaC encrypted strings found 26->102 37 RegAsm.exe 26->37         started        40 conhost.exe 26->40         started        42 conhost.exe 28->42         started        44 timeout.exe 28->44         started        process13 dnsIp14 112 Tries to harvest and steal browser information (history, passwords, etc) 30->112 64 locatedblsoqp.shop 188.114.96.3, 443, 49715, 49716 CLOUDFLARENETUS European Union 37->64 66 traineiwnqo.shop 188.114.97.3, 443, 49717, 49719 CLOUDFLARENETUS European Union 37->66 46 WerFault.exe 37->46         started        signatures15 process16
Score:
91%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f039fb1ca66436d1636816584bbe2d3ffcd87736fc2e28c89afebbf08e6a541c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f039fb1ca66436d1636816584bbe2d3ffcd87736fc2e28c89afebbf08e6a541c/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-08-30 17:27:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6a47whfgmq3ncy3iczmexprnh76nq5zw7qxcrse27257bdtkkqoa._file
Verdict:
suspicious
Similar samples:
261844b03152e938733e6cabfe09e1cc3eca03c905a9e4509c2239291b7306f9
Vidar
64115a195a5068a2ab1a3f872fe0a2aff606771e3a06f64e46d3c10f7566eedc
Vidar
78a2c197dcb65883cebc38339dd08b21f6dffb020d7cbb33a734ed969b1a5fb3
Vidar
9c4dca830487bda060624059ffc910041ce76975a00750092fcfbb0ba99512ce
Vidar
b83f5ea0d9fbc1418ecfbf9d0407cfddb3ca85ba99e967c5fe431fbb6b663bad
Vidar
bd68792e8bdc0c4f7733a20a823970ad42f7ed1e702ac5e72e2bdd9b80cab862
Vidar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:4384b1ceb77dcf470b759bedd7bb140b credential_access discovery spyware stealer
Link:
https://tria.ge/reports/240830-v1eb5swblc/
Behaviour
Checks processor information in registry
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:
http://147.45.68.138:80
https://steamcommunity.com/profiles/76561199761128941
https://t.me/iyigunl
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/1b443553-c85e-47cc-90a6-a2483e93ef46
Unpacked files
SH256 hash:
196a09b0e5cf61fa4e481837bf02b90bd693e38b5634ac0a847efc2dcbac1a5f
MD5 hash:
6d8681492719b1fa4c4ff3d3ffbf7576
SHA1 hash:
986df49a0eb01071a9b7242b1571020012f1e0d0
Detections:
VidarStealer
Create hunting rule
Link:
https://www.unpac.me/results/69686351-81fe-4b46-a842-b50502c7cea5/
Parent samples :
26047c08e200668e57088cb5b9577ed7975bf6309db51fe3544c54878430e8a3
f039fb1ca66436d1636816584bbe2d3ffcd87736fc2e28c89afebbf08e6a541c
SH256 hash:
0ab41930f0a18d7629031bf5cd9a8c7090c13983c1d7567b9018185f0fa18f0d
MD5 hash:
2890a00ef6943ed98e2b7c6e3e49ae1c
SHA1 hash:
9072a751e68fe39222aebc87ffb898a423310ce9
Link:
https://www.unpac.me/results/69686351-81fe-4b46-a842-b50502c7cea5/
SH256 hash:
f039fb1ca66436d1636816584bbe2d3ffcd87736fc2e28c89afebbf08e6a541c
MD5 hash:
b01121b9f9a1e48a7737d6b43e8a7fe5
SHA1 hash:
959f7c7f8aab299d7f150e7bdab28c815ea72511
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/69686351-81fe-4b46-a842-b50502c7cea5/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f039fb1ca664/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Stealc
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/f039fb1ca66436d1636816584bbe2d3ffcd87736fc2e28c89afebbf08e6a541c

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: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:NET
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: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

File information

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

Web download

Vidar

Executable exe f039fb1ca66436d1636816584bbe2d3ffcd87736fc2e28c89afebbf08e6a541c

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3135935/

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