MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4311ebed531b92938b18b79d3982cfe8d48c5d395113ebc13aa25f4f29f1e211. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4311ebed531b92938b18b79d3982cfe8d48c5d395113ebc13aa25f4f29f1e211
SHA3-384 hash: 3ff70a10a3ca7ed4a0613a0ca1bbc14caf024aff30e066a24dd3da9f7632782ad67928d4a7ebfe55fe48a81ec38cb870
SHA1 hash: 1784cb5f647b9fbf3d845039c751c3749b8c9aa1
MD5 hash: 05ea0aa586cd127894ff0bd65566254c
humanhash: butter-charlie-glucose-oklahoma
File name:file.exe
Download: download sample
Signature Vidar
Create hunting rule
File size:163'328 bytes
First seen:2023-05-15 00:26:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:7iRZQ+OQBDMgJ7t0zcbuK/KMDlL5Woadiq1AZ6/CXN6IJm+:uRCyRRtQAZ5XN6Mm
Threatray 1 similar samples on MalwareBazaar
TLSH T11BF308116BF88507F3FE6F71E4B151200BB5F9866872EB4F494420DE28A5740AE627BF
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) (4505/5/1)
Reporter Chainskilabs
Tags:exe vidar

Intelligence

File Origin
# of uploads :
1
# of downloads :
268
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
file.exe
Verdict:
Malicious activity
Analysis date:
2023-05-15 00:28:58 UTC
Tags:
stealer vidar trojan arkei loader
Link:
https://app.any.run/tasks/d627cb06-a017-40f6-bf0a-3f4bd7105853

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/389897/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.67043950.6674.10657.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Sending an HTTP GET request
Creating a file in the %AppData% subdirectories
Launching a process
Creating a file
DNS request
Sending a custom TCP request
Reading critical registry keys
Using the Windows Management Instrumentation requests
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4311ebed531b92938b18b79d3982cfe8d48c5d395113ebc13aa25f4f29f1e211
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/c7555f38-89d4-4413-961a-102a0f32b4a4
Result
Threat name:
Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1233139
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
Writes to foreign memory regions
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 866120 Sample: file.exe Startdate: 15/05/2023 Architecture: WINDOWS Score: 100 54 filebin.net 2->54 58 Multi AV Scanner detection for domain / URL 2->58 60 Found malware configuration 2->60 62 Malicious sample detected (through community Yara rule) 2->62 64 12 other signatures 2->64 8 file.exe 16 6 2->8         started        13 Zfqrthsqujk.exe 14 3 2->13         started        15 Zfqrthsqujk.exe 2->15         started        signatures3 process4 dnsIp5 56 185.254.37.108, 49697, 49700, 49701 NETERRA-ASBG Germany 8->56 42 C:\Users\user\AppData\...\Zfqrthsqujk.exe, PE32 8->42 dropped 44 C:\Users\...\Zfqrthsqujk.exe:Zone.Identifier, ASCII 8->44 dropped 46 C:\Users\user\AppData\Local\...\file.exe.log, ASCII 8->46 dropped 72 Writes to foreign memory regions 8->72 74 Injects a PE file into a foreign processes 8->74 17 InstallUtil.exe 22 8->17         started        76 Multi AV Scanner detection for dropped file 13->76 78 Machine Learning detection for dropped file 13->78 22 InstallUtil.exe 13->22         started        24 InstallUtil.exe 15->24         started        file6 signatures7 process8 dnsIp9 50 t.me 149.154.167.99, 443, 49698, 49705 TELEGRAMRU United Kingdom 17->50 52 49.12.34.6, 1010, 49699, 49706 HETZNER-ASDE Germany 17->52 34 C:\Users\user\AppData\Local\...\pmrs[1].exe, PE32+ 17->34 dropped 36 C:\ProgramData\31321801904572460148.exe, PE32+ 17->36 dropped 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->66 68 Tries to steal Crypto Currency Wallets 17->68 26 31321801904572460148.exe 14 2 17->26         started        38 C:\ProgramData\68232375569832491018.exe, PE32+ 22->38 dropped 30 68232375569832491018.exe 22->30         started        40 C:\ProgramData\36052488886109120090.exe, PE32+ 24->40 dropped 70 Tries to harvest and steal browser information (history, passwords, etc) 24->70 32 36052488886109120090.exe 24->32         started        file10 signatures11 process12 file13 48 C:\Users\user\AppData\Roaming\...\Fnvghkp.exe, PE32+ 26->48 dropped 80 Multi AV Scanner detection for dropped file 26->80 82 Machine Learning detection for dropped file 26->82 signatures14
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4311ebed531b92938b18b79d3982cfe8d48c5d395113ebc13aa25f4f29f1e211/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Suspicious
First seen:
2023-05-14 08:29:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
8 of 37 (21.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=imi6x3ktdojjhcyyw6ottawp5dkiyxjzkej6xqj2ujpu6kpr4iiq._file
Verdict:
malicious
Similar samples:
d38dbda39b48417330b19ea7c0eb3e625ed97a68870f551a3c647d5da465a49c
Vidar
Result
Malware family:
vidar
Create hunting rule
Score:
  10/10
Tags:
family:vidar botnet:719c6da9f3ad7b3fb50dbce1f19a32c4 persistence spyware stealer
Link:
https://tria.ge/reports/230515-arrkwsea87/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Accesses 2FA software files, possible credential harvesting
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Downloads MZ/PE file
Vidar
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199501059503
https://t.me/mastersbots
Unpacked files
SH256 hash:
4311ebed531b92938b18b79d3982cfe8d48c5d395113ebc13aa25f4f29f1e211
MD5 hash:
05ea0aa586cd127894ff0bd65566254c
SHA1 hash:
1784cb5f647b9fbf3d845039c751c3749b8c9aa1
Link:
https://www.unpac.me/results/72d95d8c-5222-497b-8b12-27ee987e3108/
Malware family:
Vidar.A
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4311ebed531b/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/4311ebed531b92938b18b79d3982cfe8d48c5d395113ebc13aa25f4f29f1e211

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: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 4311ebed531b92938b18b79d3982cfe8d48c5d395113ebc13aa25f4f29f1e211

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/389897/

Comments