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Windows
Analysis Report
FnTSHWLNWB.exe
Overview
General Information
Sample name: | FnTSHWLNWB.exerenamed because original name is a hash value |
Original sample name: | 7a1c5b88f8ac5869e4316a6ee3d43ef0.exe |
Analysis ID: | 1579511 |
MD5: | 7a1c5b88f8ac5869e4316a6ee3d43ef0 |
SHA1: | a685641eb078fe6749e8613791dc4bbd6cd3ae75 |
SHA256: | f2ec88ec0b02c5c1dd3dcbb26cae45d73a228fc9fa30c48894c352e1b3a2a417 |
Tags: | exeStealcuser-abuse_ch |
Infos: | |
Detection
Stealc, Vidar
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Attempt to bypass Chrome Application-Bound Encryption
Found malware configuration
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Overwrites code with unconditional jumps - possibly settings hooks in foreign process
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
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 steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Downloads executable code via HTTP
Drops PE files
Drops PE files to the application program directory (C:\ProgramData)
Entry point lies outside standard sections
Found dropped PE file which has not been started or loaded
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
PE / OLE file has an invalid certificate
PE file contains sections with non-standard names
Queries information about the installed CPU (vendor, model number etc)
Queries the volume information (name, serial number etc) of a device
Sample file is different than original file name gathered from version info
Sigma detected: Browser Started with Remote Debugging
Suricata IDS alerts with low severity for network traffic
Uses 32bit PE files
Yara detected Credential Stealer
Classification
- System is w10x64
- FnTSHWLNWB.exe (PID: 6664 cmdline:
"C:\Users\ user\Deskt op\FnTSHWL NWB.exe" MD5: 7A1C5B88F8AC5869E4316A6EE3D43EF0) - chrome.exe (PID: 7044 cmdline:
"C:\Progra m Files\Go ogle\Chrom e\Applicat ion\chrome .exe" --re mote-debug ging-port= 9229 --pro file-direc tory="" MD5: 45DE480806D1B5D462A7DDE4DCEFC4E4) - chrome.exe (PID: 3020 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 =2276 --fi eld-trial- handle=220 0,i,134471 5077534039 5651,18158 6419588360 44940,2621 44 /prefet ch:8 MD5: 45DE480806D1B5D462A7DDE4DCEFC4E4)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Stealc | Stealc is an information stealer advertised by its presumed developer Plymouth on Russian-speaking underground forums and sold as a Malware-as-a-Service since January 9, 2023. According to Plymouth's statement, stealc is a non-resident stealer with flexible data collection settings and its development is relied on other prominent stealers: Vidar, Raccoon, Mars and Redline.Stealc is written in C and uses WinAPI functions. It mainly targets date from web browsers, extensions and Desktop application of cryptocurrency wallets, and from other applications (messengers, email clients, etc.). The malware downloads 7 legitimate third-party DLLs to collect sensitive data from web browsers, including sqlite3.dll, nss3.dll, vcruntime140.dll, mozglue.dll, freebl3.dll, softokn3.dll and msvcp140.dll. It then exfiltrates the collected information file by file to its C2 server using HTTP POST requests. | No Attribution |
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 |
{"C2 url": "185.219.81.132/4bcb97a14f2e1544.php"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Stealc_1 | Yara detected Stealc | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Stealc | Yara detected Stealc | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_Stealc | Yara detected Stealc | Joe Security | ||
JoeSecurity_Vidar_1 | Yara detected Vidar stealer | Joe Security | ||
Click to see the 3 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
JoeSecurity_Stealc | Yara detected Stealc | Joe Security |
Source: | Author: pH-T (Nextron Systems), Nasreddine Bencherchali (Nextron Systems): |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-22T18:37:06.509975+0100 | 2044245 | 1 | Malware Command and Control Activity Detected | 185.219.81.132 | 80 | 192.168.2.4 | 49732 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-22T18:37:06.388743+0100 | 2044244 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 49732 | 185.219.81.132 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-22T18:37:06.786711+0100 | 2044246 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 49732 | 185.219.81.132 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-22T18:37:36.771614+0100 | 2044249 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 49751 | 185.219.81.132 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-22T18:37:08.187174+0100 | 2044248 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 49732 | 185.219.81.132 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-22T18:37:06.909815+0100 | 2044247 | 1 | Malware Command and Control Activity Detected | 185.219.81.132 | 80 | 192.168.2.4 | 49732 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-22T18:37:05.993222+0100 | 2044243 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 49732 | 185.219.81.132 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-12-22T18:37:08.934752+0100 | 2803304 | 3 | Unknown Traffic | 192.168.2.4 | 49732 | 185.219.81.132 | 80 | TCP |
2024-12-22T18:37:23.312828+0100 | 2803304 | 3 | Unknown Traffic | 192.168.2.4 | 49751 | 185.219.81.132 | 80 | TCP |
2024-12-22T18:37:25.858414+0100 | 2803304 | 3 | Unknown Traffic | 192.168.2.4 | 49751 | 185.219.81.132 | 80 | TCP |
2024-12-22T18:37:27.722068+0100 | 2803304 | 3 | Unknown Traffic | 192.168.2.4 | 49751 | 185.219.81.132 | 80 | TCP |
2024-12-22T18:37:28.835397+0100 | 2803304 | 3 | Unknown Traffic | 192.168.2.4 | 49751 | 185.219.81.132 | 80 | TCP |
2024-12-22T18:37:32.385985+0100 | 2803304 | 3 | Unknown Traffic | 192.168.2.4 | 49751 | 185.219.81.132 | 80 | TCP |
2024-12-22T18:37:33.360781+0100 | 2803304 | 3 | Unknown Traffic | 192.168.2.4 | 49751 | 185.219.81.132 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Virustotal: | Perma Link |
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Networking |
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