MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e. 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: 2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e
SHA3-384 hash: 16b925ddd03678bdf0af6400b6e36c6983f8110a5e0096362b4aff2667f439eed04ab5502465881c091bcf62df6b96b7
SHA1 hash: 261344946fe8e06368b6385a0c815e1b99b89e49
MD5 hash: 2ff6b812f5ca9d29a5007366f38b6f34
humanhash: video-low-eleven-six
File name:file
Download: download sample
Signature Vidar
Create hunting rule
File size:413'224 bytes
First seen:2024-09-26 23:35:18 UTC
Last seen:2024-09-27 00:22:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:mzWi1fvPOSuEnigNkKoU/YT+rz4VFTzqEO:OWi1f3OEiyoU/6+rzoTGt
Threatray 129 similar samples on MalwareBazaar
TLSH T187942371CB814610F9CA3CB978A1C7D61E34E3B2A79AD9FB455C58F4B34333016A8E52
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/66f5dbb051c30_vdsagdas16.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
421
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-26 23:39:42 UTC
Tags:
vidar stealer
Link:
https://app.any.run/tasks/ba6a0f06-5b39-4d73-836a-b454ea220e47

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Msilzilla-10036350-0
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66f5efe64b14762f621227b6
Tags:
Encryption Static Micro Tori Msil
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
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Running batch commands
Creating a process with a hidden window
Forced shutdown of a system process
Connection attempt to an infection source
Sending a TCP request to an infection source
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:
overlay packed
Link:
https://www.filescan.io/uploads/66f5efe4b240a2b637c83d59/reports/5e60d618-57fa-4ec6-85a5-c063e098d1c9/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/23a0e5a9-d7b0-48d0-8144-96e5b2287817
Result
Threat name:
LummaC, RDPWrap Tool, LummaC Stealer, Vi
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1519866
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Adds a new user with administrator rights
AI detected suspicious sample
Allocates memory in foreign processes
Allows multiple concurrent remote connection
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Enables remote desktop connection
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
Modifies the windows firewall
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Sigma detected: Outbound RDP Connections Over Non-Standard Tools
Sigma detected: RDP Sensitive Settings Changed
Suricata IDS alerts for network traffic
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
Uses netsh to modify the Windows network and firewall settings
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected LummaC Stealer
Yara detected Powershell download and execute
Yara detected RDPWrap Tool
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1519866 Sample: file.exe Startdate: 27/09/2024 Architecture: WINDOWS Score: 100 115 wallkedsleeoi.shop 2->115 117 vozmeatillu.shop 2->117 119 12 other IPs or domains 2->119 155 Suricata IDS alerts for network traffic 2->155 157 Found malware configuration 2->157 159 Antivirus detection for URL or domain 2->159 161 20 other signatures 2->161 11 file.exe 2 2->11         started        15 rdpvideominiport.sys 2->15         started        17 rdpdr.sys 2->17         started        19 tsusbhub.sys 2->19         started        signatures3 process4 file5 103 C:\Users\user\AppData\Local\...\file.exe.log, CSV 11->103 dropped 173 Contains functionality to inject code into remote processes 11->173 175 Writes to foreign memory regions 11->175 177 Allocates memory in foreign processes 11->177 179 Injects a PE file into a foreign processes 11->179 21 RegAsm.exe 1 126 11->21         started        26 RegAsm.exe 11->26         started        28 conhost.exe 11->28         started        30 RegAsm.exe 11->30         started        signatures6 process7 dnsIp8 127 cowod.hopto.org 45.132.206.251, 49747, 80 LIFELINK-ASRU Russian Federation 21->127 129 5.75.211.162, 443, 49711, 49712 HETZNER-ASDE Germany 21->129 131 2 other IPs or domains 21->131 95 C:\Users\user\...\66f5de72d9ebd_rdp[1].exe, PE32 21->95 dropped 97 C:\Users\...\66f5dbaca34ac_lfdnsafnds[1].exe, PE32 21->97 dropped 99 C:\Users\...\66f5db9e54794_vfkagks[1].exe, PE32 21->99 dropped 101 9 other files (7 malicious) 21->101 dropped 163 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 21->163 165 Found many strings related to Crypto-Wallets (likely being stolen) 21->165 167 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 21->167 171 4 other signatures 21->171 32 CFHIIEHJKK.exe 21->32         started        37 GIEHJDHCBA.exe 2 21->37         started        39 BKKFCFBKFC.exe 2 21->39         started        41 cmd.exe 21->41         started        169 Searches for specific processes (likely to inject) 26->169 file9 signatures10 process11 dnsIp12 109 8.46.123.33, 3389, 49764 AS-PUBMATICUS United States 32->109 111 api.ipify.org 104.26.12.205, 49762, 80 CLOUDFLARENETUS United States 32->111 113 239.255.255.250 unknown Reserved 32->113 93 C:\Users\user\AppData\Local\...\RDPWInst.exe, PE32 32->93 dropped 141 Antivirus detection for dropped file 32->141 143 Machine Learning detection for dropped file 32->143 43 cmd.exe 32->43         started        45 cmd.exe 32->45         started        48 cmd.exe 32->48         started        57 3 other processes 32->57 145 Multi AV Scanner detection for dropped file 37->145 147 Writes to foreign memory regions 37->147 149 Allocates memory in foreign processes 37->149 151 LummaC encrypted strings found 37->151 50 RegAsm.exe 37->50         started        59 3 other processes 37->59 153 Injects a PE file into a foreign processes 39->153 53 RegAsm.exe 141 39->53         started        55 conhost.exe 39->55         started        61 2 other processes 41->61 file13 signatures14 process15 dnsIp16 63 RDPWInst.exe 43->63         started        67 conhost.exe 43->67         started        181 Adds a new user with administrator rights 45->181 69 net.exe 45->69         started        71 conhost.exe 45->71         started        73 net.exe 48->73         started        75 conhost.exe 48->75         started        121 reinforcenh.shop 104.21.77.130, 443, 49749 CLOUDFLARENETUS United States 50->121 123 ballotnwu.site 172.67.128.144, 443, 49751 CLOUDFLARENETUS United States 50->123 125 5 other IPs or domains 50->125 183 Tries to harvest and steal browser information (history, passwords, etc) 53->183 77 net.exe 57->77         started        79 net.exe 57->79         started        81 4 other processes 57->81 signatures17 process18 file19 105 C:\Program Files\RDP Wrapper\rdpwrap.dll, PE32+ 63->105 dropped 107 C:\Windows\System32\rfxvmt.dll, PE32+ 63->107 dropped 133 Multi AV Scanner detection for dropped file 63->133 135 Machine Learning detection for dropped file 63->135 137 Uses netsh to modify the Windows network and firewall settings 63->137 139 3 other signatures 63->139 83 netsh.exe 63->83         started        85 net1.exe 69->85         started        87 net1.exe 73->87         started        89 net1.exe 77->89         started        91 net1.exe 79->91         started        signatures20 process21
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-09-26 22:50:00 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=fkfnjsnpgay73z6tejqtz65jm7dd75xfmv6hjougsmcqaopqp5xa._file
Verdict:
malicious
Label(s):
stealc
Create hunting rule
Similar samples:
2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e
Vidar
6335282918d5ab79ed7704a1dc655915f829c435997e31d20780d6eda030a440
Vidar
8df76c9722b5a44e7e5c42de48f4073ef42eaa814903207abdb9aa72f0ed4616
Vidar
941e7002f11290e3ed9dd99d8cc0abc62f6cf69b923ae30b89741579854a8a70
Vidar
e0f1b468770374dc01046cd48f25609b5e04724a79323a049f02673ea0bcc811
Vidar
f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d
Vidar
+ 119 additional samples on MalwareBazaar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:b26735cbe8ca9e75712ffe3aa40c4a60 discovery spyware stealer
Link:
https://tria.ge/reports/240926-3ljx3stfjr/
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
Detect Vidar Stealer
Vidar
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199780418869
https://t.me/ae5ed
Verdict:
Malicious
Tags:
stealc vidar stealc
YARA:
n/a
Link:
https://app.threat.zone/submission/53ac008b-f2e3-418c-9b15-1b95a33c3364
Unpacked files
SH256 hash:
2ee4ab8ca439b02fe173747af6642c8f6939f9ca60eb83fb25b6efe77c8ce743
MD5 hash:
61cec39210e8f0ce7f47752dfe6f1b3c
SHA1 hash:
2b4de55394a2d2e585120d88fb4133bb05d6d3a9
Detections:
VidarStealer
Create hunting rule
Link:
https://www.unpac.me/results/f1144bd8-76b0-481a-a5f7-54dd825bc41b/
Parent samples :
941e7002f11290e3ed9dd99d8cc0abc62f6cf69b923ae30b89741579854a8a70
2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e
SH256 hash:
0a6b558dc092b4f6bce802a6407fe468f7b973c82db36e2d7a0d0db5635838b4
MD5 hash:
1fbd01ee768b7c4abfd2783a4707a072
SHA1 hash:
15288415ec755c2673da3c716386abfdd35aaaed
Link:
https://www.unpac.me/results/f1144bd8-76b0-481a-a5f7-54dd825bc41b/
SH256 hash:
2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e
MD5 hash:
2ff6b812f5ca9d29a5007366f38b6f34
SHA1 hash:
261344946fe8e06368b6385a0c815e1b99b89e49
Link:
https://www.unpac.me/results/f1144bd8-76b0-481a-a5f7-54dd825bc41b/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2a8ad4c9af30/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.16
Link:
https://yomi.yoroi.company/submissions/2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e

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 2a8ad4c9af3031fde7d322613cfba967c63ff6e5657c74ba8693050039f07f6e

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3193170/

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