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Windows
Analysis Report
file.exe
Overview
General Information
Detection
Stealc
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus / Scanner detection for submitted sample
Attempt to bypass Chrome Application-Bound Encryption
Detected unpacking (changes PE section rights)
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
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Hides threads from debuggers
Machine Learning detection for sample
Monitors registry run keys for changes
PE file contains section with special chars
Sample uses string decryption to hide its real strings
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal browser information (history, passwords, etc)
AV process strings found (often used to terminate AV products)
Checks for debuggers (devices)
Checks if the current process is being debugged
Contains capabilities to detect virtual machines
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to dynamically determine API calls
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains functionality to query CPU information (cpuid)
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Detected non-DNS traffic on DNS port
Detected potential crypto function
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
Found large amount of non-executed APIs
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
One or more processes crash
PE file contains an invalid checksum
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 execution stops while process was sleeping (likely an evasion)
Sigma detected: Browser Started with Remote Debugging
Stores files to the Windows start menu directory
Suricata IDS alerts with low severity for network traffic
Uses 32bit PE files
Uses Microsoft's Enhanced Cryptographic Provider
Uses code obfuscation techniques (call, push, ret)
Uses insecure TLS / SSL version for HTTPS connection
Yara detected Credential Stealer
Classification
- System is w10x64
- file.exe (PID: 572 cmdline:
"C:\Users\ user\Deskt op\file.ex e" MD5: E71C5AEE12EE323FC4F40010437D4186) - chrome.exe (PID: 7156 cmdline:
"C:\\Progr am Files\\ Google\\Ch rome\\Appl ication\\c hrome.exe" --remote- debugging- port=9229 --profile- directory= "Default" MD5: 45DE480806D1B5D462A7DDE4DCEFC4E4) - chrome.exe (PID: 7276 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 =2344 --fi eld-trial- handle=230 0,i,122532 5496901648 3560,82013 4672791757 2469,26214 4 /prefetc h:8 MD5: 45DE480806D1B5D462A7DDE4DCEFC4E4) - msedge.exe (PID: 5688 cmdline:
"C:\\Progr am Files ( x86)\\Micr osoft\\Edg e\\Applica tion\\msed ge.exe" -- remote-deb ugging-por t=9229 --p rofile-dir ectory="De fault" MD5: 69222B8101B0601CC6663F8381E7E00F) - msedge.exe (PID: 8016 cmdline:
"C:\Progra m Files (x 86)\Micros oft\Edge\A pplication \msedge.ex e" --type= utility -- utility-su b-type=net work.mojom .NetworkSe rvice --la ng=en-GB - -service-s andbox-typ e=none --m ojo-platfo rm-channel -handle=26 36 --field -trial-han dle=2468,i ,182081228 5051100887 5,35863029 2499300278 ,262144 /p refetch:3 MD5: 69222B8101B0601CC6663F8381E7E00F) - WerFault.exe (PID: 7804 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 5 72 -s 2064 MD5: C31336C1EFC2CCB44B4326EA793040F2)
- msedge.exe (PID: 1408 cmdline:
"C:\Progra m Files (x 86)\Micros oft\Edge\A pplication \msedge.ex e" --remot e-debuggin g-port=922 9 --profil e-director y=Default --flag-swi tches-begi n --flag-s witches-en d --disabl e-nacl --d o-not-de-e levate MD5: 69222B8101B0601CC6663F8381E7E00F) - msedge.exe (PID: 7624 cmdline:
"C:\Progra m Files (x 86)\Micros oft\Edge\A pplication \msedge.ex e" --type= utility -- utility-su b-type=net work.mojom .NetworkSe rvice --la ng=en-GB - -service-s andbox-typ e=none --m ojo-platfo rm-channel -handle=22 12 --field -trial-han dle=2004,i ,110587586 2675381786 0,20676047 0264936278 4,262144 / prefetch:3 MD5: 69222B8101B0601CC6663F8381E7E00F)
- 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 |
{"C2 url": "http://185.215.113.206/6c4adf523b719729.php", "Botnet": "tale"}
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_Stealc | Yara detected Stealc | Joe Security | ||
JoeSecurity_Stealc | Yara detected Stealc | Joe Security | ||
JoeSecurity_PowershellDownloadAndExecute | Yara detected Powershell download and execute | Joe Security | ||
JoeSecurity_CredentialStealer | Yara detected Credential Stealer | Joe Security | ||
Click to see the 2 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_Stealc | Yara detected Stealc | Joe Security |
System Summary |
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Source: | Author: pH-T (Nextron Systems), Nasreddine Bencherchali (Nextron Systems): |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-11-01T12:13:15.037422+0100 | 2022930 | 1 | A Network Trojan was detected | 20.109.210.53 | 443 | 192.168.2.5 | 49718 | TCP |
2024-11-01T12:13:35.111361+0100 | 2022930 | 1 | A Network Trojan was detected | 4.175.87.197 | 443 | 192.168.2.5 | 59273 | TCP |
2024-11-01T12:13:36.875023+0100 | 2022930 | 1 | A Network Trojan was detected | 4.175.87.197 | 443 | 192.168.2.5 | 59286 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-11-01T12:13:02.242472+0100 | 2044245 | 1 | Malware Command and Control Activity Detected | 185.215.113.206 | 80 | 192.168.2.5 | 49704 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-11-01T12:13:02.236515+0100 | 2044244 | 1 | Malware Command and Control Activity Detected | 192.168.2.5 | 49704 | 185.215.113.206 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-11-01T12:13:02.524004+0100 | 2044246 | 1 | Malware Command and Control Activity Detected | 192.168.2.5 | 49704 | 185.215.113.206 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-11-01T12:13:03.631835+0100 | 2044248 | 1 | Malware Command and Control Activity Detected | 192.168.2.5 | 49704 | 185.215.113.206 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-11-01T12:13:02.530894+0100 | 2044247 | 1 | Malware Command and Control Activity Detected | 185.215.113.206 | 80 | 192.168.2.5 | 49704 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-11-01T12:13:01.948648+0100 | 2044243 | 1 | Malware Command and Control Activity Detected | 192.168.2.5 | 49704 | 185.215.113.206 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-11-01T12:13:04.159953+0100 | 2803304 | 3 | Unknown Traffic | 192.168.2.5 | 49704 | 185.215.113.206 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Code function: | 0_2_6C85B040 |
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Source: | Code function: | 0_2_6C89717D |
Source: | File opened: | Jump to behavior | ||
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Networking |
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