MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4a16685ec6d408bafc872fac39012bb670ff7bba818a7af9f7dd411a383869dd. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4a16685ec6d408bafc872fac39012bb670ff7bba818a7af9f7dd411a383869dd
SHA3-384 hash: 732bab21d8515c56f82a7397ad5c5d829336b2db712d9156fb882d7141f5e7fb2621b3bb49da5ce62927504dc43f3113
SHA1 hash: ef7f9f0b82f45fc93ca503f4eadd8e423bc94887
MD5 hash: 257eb69581fd80827932ed434d32470f
humanhash: skylark-high-single-sierra
File name:file
Download: download sample
Signature Vidar
Create hunting rule
File size:290'344 bytes
First seen:2024-09-13 04:39:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:tQs0+jmxNThrvyoRUp4B1Pw3A0FWAtMql3EBdA9bPCp0uUfStm5zXT4htP6VYdWe:M+jOFxvVQ4rPw3A+WAtr3EPknfS9PKS3
Threatray 17 similar samples on MalwareBazaar
TLSH T1F5542303B7E45025DF700EF2ACD49714ABBBF7DE89A2274EA576C156C8823D02E3D625
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: https://brasmundi.com.br/vfdnwe.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
391
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-09-13 04:41:16 UTC
Tags:
vidar telegram stealer stealc loader
Link:
https://app.any.run/tasks/f6cca0ec-a0b7-4ac0-bb8a-6435a4b95d88

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:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66e3c22576bc4542b0498c61
Tags:
Banker Encryption Generic Network Static Stealth
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
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
Query of malicious DNS domain
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/66e3c224d7fbba2390eb0251/reports/ad6b5e4c-d3c4-4dd8-9298-7dc481696c71/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/4a16685ec6d408bafc872fac39012bb670ff7bba818a7af9f7dd411a383869dd
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/5876545a-2b91-4580-b928-d22fb0c18e98
Result
Threat name:
LummaC, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1510596
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 evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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
Multi AV Scanner detection for domain / URL
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)
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
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected LummaC Stealer
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1510596 Sample: file.exe Startdate: 13/09/2024 Architecture: WINDOWS Score: 100 116 t.me 2->116 118 gacan.zapto.org 2->118 120 brasmundi.com.br 2->120 138 Multi AV Scanner detection for domain / URL 2->138 140 Suricata IDS alerts for network traffic 2->140 142 Found malware configuration 2->142 144 15 other signatures 2->144 14 file.exe 2 2->14         started        signatures3 process4 file5 114 C:\Users\user\AppData\Local\...\file.exe.log, CSV 14->114 dropped 178 Contains functionality to inject code into remote processes 14->178 180 Writes to foreign memory regions 14->180 182 Allocates memory in foreign processes 14->182 184 Injects a PE file into a foreign processes 14->184 18 RegAsm.exe 1 224 14->18         started        23 RegAsm.exe 14->23         started        25 conhost.exe 14->25         started        27 RegAsm.exe 14->27         started        signatures6 process7 dnsIp8 122 t.me 149.154.167.99, 443, 49714, 49725 TELEGRAMRU United Kingdom 18->122 124 147.45.45.69, 49715, 49726, 49728 FREE-NET-ASFREEnetEU Russian Federation 18->124 126 brasmundi.com.br 209.145.56.187, 443, 49716, 49717 CDMUS United States 18->126 96 C:\Users\user\AppData\Local\...\vfdnwe[1].exe, PE32 18->96 dropped 98 C:\Users\user\AppData\Local\...\sgmfd[1].exe, PE32 18->98 dropped 100 C:\Users\user\AppData\Local\...\lnsfeo[1].exe, PE32 18->100 dropped 102 16 other files (12 malicious) 18->102 dropped 146 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->146 148 Found many strings related to Crypto-Wallets (likely being stolen) 18->148 150 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 18->150 156 2 other signatures 18->156 29 FHJDAAEGID.exe 2 18->29         started        32 AAAKEBGDAF.exe 2 18->32         started        34 BGDAAEHDHI.exe 18->34         started        36 cmd.exe 18->36         started        152 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 23->152 154 Searches for specific processes (likely to inject) 23->154 file9 signatures10 process11 signatures12 168 Multi AV Scanner detection for dropped file 29->168 170 Writes to foreign memory regions 29->170 172 Allocates memory in foreign processes 29->172 38 RegAsm.exe 33 29->38         started        43 conhost.exe 29->43         started        45 RegAsm.exe 29->45         started        47 RegAsm.exe 29->47         started        174 Injects a PE file into a foreign processes 32->174 176 LummaC encrypted strings found 32->176 49 RegAsm.exe 1 32->49         started        51 conhost.exe 32->51         started        53 conhost.exe 34->53         started        55 2 other processes 34->55 57 2 other processes 36->57 process13 dnsIp14 128 46.8.231.109, 49718, 49720, 49721 FIORD-ASIP-transitoperatorinRussiaUkraineandBaltics Russian Federation 38->128 104 C:\Users\user\AppData\Local\...\vfdnwe[1].exe, PE32 38->104 dropped 106 C:\Users\user\AppData\...\softokn3[1].dll, PE32 38->106 dropped 108 C:\Users\user\AppData\Local\...\lnsfeo[1].exe, PE32 38->108 dropped 112 7 other files (5 malicious) 38->112 dropped 158 Tries to steal Mail credentials (via file / registry access) 38->158 160 Tries to harvest and steal ftp login credentials 38->160 162 Tries to harvest and steal browser information (history, passwords, etc) 38->162 164 2 other signatures 38->164 59 cmd.exe 38->59         started        61 cmd.exe 38->61         started        110 C:\Program Files\...\Z0J6AY6YLGW5960HIQ.exe, PE32 49->110 dropped 63 Z0J6AY6YLGW5960HIQ.exe 2 49->63         started        file15 signatures16 process17 process18 65 userHDAFHIDGIJ.exe 59->65         started        68 conhost.exe 59->68         started        70 userJJJKFBAAAF.exe 61->70         started        72 conhost.exe 61->72         started        74 conhost.exe 63->74         started        signatures19 130 Multi AV Scanner detection for dropped file 65->130 132 Writes to foreign memory regions 65->132 134 Allocates memory in foreign processes 65->134 76 RegAsm.exe 65->76         started        79 conhost.exe 65->79         started        136 Injects a PE file into a foreign processes 70->136 81 RegAsm.exe 70->81         started        84 conhost.exe 70->84         started        86 RegAsm.exe 70->86         started        88 RegAsm.exe 70->88         started        process20 file21 166 Tries to harvest and steal browser information (history, passwords, etc) 76->166 94 C:\Program Filesbehaviorgraphoogle\...94C6F82TUJ.exe, PE32 81->94 dropped 90 NC6F82TUJ.exe 81->90         started        signatures22 process23 process24 92 conhost.exe 90->92         started       
Score:
59%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/4a16685ec6d408bafc872fac39012bb670ff7bba818a7af9f7dd411a383869dd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4a16685ec6d408bafc872fac39012bb670ff7bba818a7af9f7dd411a383869dd/
Threat name:
Win32.Trojan.LummaC
Create hunting rule
Status:
Malicious
First seen:
2024-09-13 04:40:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jilgqxwg2qelv7ehf6wdsajlwzyp6652qgfhv6px3varuobynhoq._file
Verdict:
malicious
Similar samples:
4ed6d72fef68c583439e803871226e76588ce6436d10362011b21763e0ccf176
Vidar
5ee0d7eda49cc7bcf2e445c36be3253e971ce4e8147537a8d4a02918411777f3
Vidar
c98f17dd444209ad0a6d71221b67cd632bc6409686f750bb5118a7e42eca91e0
Vidar
fc810b97cdfebeaa268367812e5e94175e4b47c150a136a4c596c86a6432b4f1
Vidar
fdf090545751ce09207f7cec140d21d246cb2f25002683e2cd36c92e18707f56
Vidar
+ 7 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/240913-fajrlsvcqn/
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://t.me/afsgsdgqr4r
https://t.me/edm0d
https://steamcommunity.com/profiles/76561199768374681
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d237e744-d6ef-460f-83ee-d935b120af55
Unpacked files
SH256 hash:
96b5b577b8081bb845d85ebdc3ab5d7ac1ca73e89e8d1940622af78022020388
MD5 hash:
7bf06bc9e4ecf17b8eb7c2536522b099
SHA1 hash:
f07fd272de90896f0bba756c33ea8dfa56f37754
Detections:
VidarStealer
Create hunting rule
Link:
https://www.unpac.me/results/8cb1113d-4a88-490c-aafb-28568c151743/
SH256 hash:
0ab41930f0a18d7629031bf5cd9a8c7090c13983c1d7567b9018185f0fa18f0d
MD5 hash:
2890a00ef6943ed98e2b7c6e3e49ae1c
SHA1 hash:
9072a751e68fe39222aebc87ffb898a423310ce9
Link:
https://www.unpac.me/results/8cb1113d-4a88-490c-aafb-28568c151743/
SH256 hash:
4a16685ec6d408bafc872fac39012bb670ff7bba818a7af9f7dd411a383869dd
MD5 hash:
257eb69581fd80827932ed434d32470f
SHA1 hash:
ef7f9f0b82f45fc93ca503f4eadd8e423bc94887
Link:
https://www.unpac.me/results/8cb1113d-4a88-490c-aafb-28568c151743/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4a16685ec6d4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/4a16685ec6d408bafc872fac39012bb670ff7bba818a7af9f7dd411a383869dd

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:Detect_APT29_WINELOADER_Backdoor
Create hunting rule
Author:daniyyell
Description:Detects APT29's WINELOADER backdoor variant used in phishing campaigns, this rule also detect bad pdf,shtml,htm and vbs or maybe more depends
Reference:https://cloud.google.com/blog/topics/threat-intelligence/apt29-wineloader-german-political-parties
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: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 4a16685ec6d408bafc872fac39012bb670ff7bba818a7af9f7dd411a383869dd

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3169788/

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