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Windows
Analysis Report
MatAugust.exe
Overview
General Information
Detection
Vidar
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Attempt to bypass Chrome Application-Bound Encryption
Multi AV Scanner detection for submitted file
Sigma detected: Search for Antivirus process
Suricata IDS alerts for network traffic
Yara detected Vidar stealer
AI detected suspicious sample
Drops PE files with a suspicious file extension
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Contains functionality for read data from the clipboard
Contains functionality to dynamically determine API calls
Contains functionality to retrieve information about pressed keystrokes
Contains functionality to shutdown / reboot the system
Creates a process in suspended mode (likely to inject code)
Creates files inside the system directory
Detected non-DNS traffic on DNS port
Detected potential crypto function
Dropped file seen in connection with other malware
Drops PE files
Enables debug privileges
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
PE / OLE file has an invalid certificate
PE file contains an invalid checksum
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Sigma detected: Browser Started with Remote Debugging
Uses 32bit PE files
Classification
- System is w10x64
- MatAugust.exe (PID: 7652 cmdline:
"C:\Users\ user\Deskt op\MatAugu st.exe" MD5: 39798D9BFF4607F95DF260FF89C564C0) - cmd.exe (PID: 7696 cmdline:
"C:\Window s\System32 \cmd.exe" /c move Ex pertise Ex pertise.cm d & Expert ise.cmd MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 7704 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - tasklist.exe (PID: 7780 cmdline:
tasklist MD5: 0A4448B31CE7F83CB7691A2657F330F1) - findstr.exe (PID: 7804 cmdline:
findstr /I "opssvc w rsa" MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - tasklist.exe (PID: 7824 cmdline:
tasklist MD5: 0A4448B31CE7F83CB7691A2657F330F1) - findstr.exe (PID: 7832 cmdline:
findstr "A vastUI AVG UI bdservi cehost nsW scSvc ekrn SophosHea lth" MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - cmd.exe (PID: 7868 cmdline:
cmd /c md 164676 MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - extrac32.exe (PID: 7888 cmdline:
extrac32 / Y /E Grab MD5: 9472AAB6390E4F1431BAA912FCFF9707) - findstr.exe (PID: 7908 cmdline:
findstr /V "slovenia " Contract ors MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - cmd.exe (PID: 7920 cmdline:
cmd /c cop y /b 16467 6\Stopped. com + Zero + Refugee s + Severe + Removal + Differe ntial + Mp h + Increa singly + B orn + Conv inced + Pa ssenger 16 4676\Stopp ed.com MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - cmd.exe (PID: 7936 cmdline:
cmd /c cop y /b ..\Fu rnished + ..\Relativ e + ..\Cal gary + ..\ Pour + ..\ Halfcom + ..\Nj + .. \Capitol + ..\Firewi re + ..\Tr ees h MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - Stopped.com (PID: 7964 cmdline:
Stopped.co m h MD5: 62D09F076E6E0240548C2F837536A46A) - chrome.exe (PID: 4324 cmdline:
"C:\Progra m Files\Go ogle\Chrom e\Applicat ion\chrome .exe" --re mote-debug ging-port= 9223 --pro file-direc tory="Defa ult" MD5: 45DE480806D1B5D462A7DDE4DCEFC4E4) - chrome.exe (PID: 7476 cmdline:
"C:\Progra m Files\Go ogle\Chrom e\Applicat ion\chrome .exe" --ty pe=utility --utility -sub-type= network.mo jom.Networ kService - -lang=en-U S --servic e-sandbox- type=none --mojo-pla tform-chan nel-handle =2428 --fi eld-trial- handle=227 2,i,126030 6813731236 0975,10609 3793107230 09523,2621 44 /prefet ch:8 MD5: 45DE480806D1B5D462A7DDE4DCEFC4E4) - cmd.exe (PID: 1144 cmdline:
"C:\Window s\system32 \cmd.exe" /c timeout /t 10 & d el /f /q " C:\Users\u ser\AppDat a\Local\Mi crosoft\Wi ndows\INet Cache\1646 76\Stopped .com" & rd /s /q "C: \ProgramDa ta\wlxlf" & exit MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 2368 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - timeout.exe (PID: 6028 cmdline:
timeout /t 10 MD5: 976566BEEFCCA4A159ECBDB2D4B1A3E3) - choice.exe (PID: 7980 cmdline:
choice /d y /t 5 MD5: FCE0E41C87DC4ABBE976998AD26C27E4)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Vidar | Vidar is a forked malware based on Arkei. It seems this stealer is one of the first that is grabbing information on 2FA Software and Tor Browser. | No Attribution |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Vidar_1 | Yara detected Vidar stealer | Joe Security |
Source: | Author: pH-T (Nextron Systems), Nasreddine Bencherchali (Nextron Systems): |
HIPS / PFW / Operating System Protection Evasion |
---|
Source: | Author: Joe Security: |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-31T16:57:36.950101+0100 | 2044247 | 1 | Malware Command and Control Activity Detected | 116.203.14.4 | 443 | 192.168.2.4 | 49742 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-31T16:57:38.251011+0100 | 2051831 | 1 | Malware Command and Control Activity Detected | 116.203.14.4 | 443 | 192.168.2.4 | 49743 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-31T16:57:38.250808+0100 | 2049087 | 1 | A Network Trojan was detected | 192.168.2.4 | 49743 | 116.203.14.4 | 443 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-31T16:57:34.305147+0100 | 2859378 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 49740 | 116.203.14.4 | 443 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: |
Source: | Integrated Neural Analysis Model: |
Source: | Static PE information: |
Source: | HTTPS traffic detected: | ||
Source: | HTTPS traffic detected: |
Source: | Static PE information: |
Source: | Code function: | 0_2_004062D5 | |
Source: | Code function: | 0_2_00402E18 | |
Source: | Code function: | 0_2_00406C9B |
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior | ||
Source: | File opened: | Jump to behavior |
Source: | Memory has grown: |
Networking |
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Source: | TCP traffic detected without corresponding DNS query: | ||
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Source: | UDP traffic detected without corresponding DNS query: | ||
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Source: | String found in binary or memory: | ||
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