Edit tour
Windows
Analysis Report
M13W1o3scc.exe
Overview
General Information
Sample name: | M13W1o3scc.exerenamed because original name is a hash value |
Original sample name: | e6dd6a25125edd4c21fe5cf7bafcd2bb.exe |
Analysis ID: | 1528594 |
MD5: | e6dd6a25125edd4c21fe5cf7bafcd2bb |
SHA1: | c1b1ec6b5e78fcaff4290bff55ae86ee8816f715 |
SHA256: | 523cd90154c376b7f6953f1e825eb467b231b3fffe30ab321c1a69da22cb1148 |
Tags: | exeStealcuser-abuse_ch |
Infos: | |
Detection
Stealc
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for dropped file
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
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
Sigma detected: Search for Antivirus process
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
Drops PE files with a suspicious file extension
Found evasive API chain (may stop execution after checking locale)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Searches for specific processes (likely to inject)
AV process strings found (often used to terminate AV products)
Contains functionality for read data from the clipboard
Contains functionality to block mouse and keyboard input (often used to hinder debugging)
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check if a debugger is running (OutputDebugString,GetLastError)
Contains functionality to check if a window is minimized (may be used to check if an application is visible)
Contains functionality to communicate with device drivers
Contains functionality to create guard pages, often used to hinder reverse engineering and debugging
Contains functionality to dynamically determine API calls
Contains functionality to execute programs as a different user
Contains functionality to launch a process as a different user
Contains functionality to launch a program with higher privileges
Contains functionality to modify clipboard data
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains functionality to query CPU information (cpuid)
Contains functionality to query locales information (e.g. system language)
Contains functionality to read the PEB
Contains functionality to read the clipboard data
Contains functionality to retrieve information about pressed keystrokes
Contains functionality to shutdown / reboot the system
Contains functionality to simulate keystroke presses
Contains functionality to simulate mouse events
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Creates a process in suspended mode (likely to inject code)
Creates files inside the system directory
Detected potential crypto function
Downloads executable code via HTTP
Dropped file seen in connection with other malware
Drops PE files
Enables debug privileges
Extensive use of GetProcAddress (often used to hide API calls)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found evaded block containing many API calls
Found evasive API chain (date check)
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
OS version to string mapping found (often used in BOTs)
One or more processes crash
PE file contains sections with non-standard names
Potential key logger detected (key state polling based)
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: Execution of Suspicious File Type Extension
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)
Yara signature match
Classification
- System is w10x64
- M13W1o3scc.exe (PID: 7328 cmdline:
"C:\Users\ user\Deskt op\M13W1o3 scc.exe" MD5: E6DD6A25125EDD4C21FE5CF7BAFCD2BB) - cmd.exe (PID: 7376 cmdline:
"C:\Window s\System32 \cmd.exe" /c move Ha lo Halo.ba t & Halo.b at MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - conhost.exe (PID: 7384 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - tasklist.exe (PID: 7464 cmdline:
tasklist MD5: 0A4448B31CE7F83CB7691A2657F330F1) - findstr.exe (PID: 7476 cmdline:
findstr /I "wrsa ops svc" MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - tasklist.exe (PID: 7508 cmdline:
tasklist MD5: 0A4448B31CE7F83CB7691A2657F330F1) - findstr.exe (PID: 7516 cmdline:
findstr -I "avastui avgui bdse rvicehost nswscsvc s ophoshealt h" MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - cmd.exe (PID: 7552 cmdline:
cmd /c md 773416 MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - findstr.exe (PID: 7568 cmdline:
findstr /V "MineralA lertSignif icantVanil la" Partit ion MD5: F1D4BE0E99EC734376FDE474A8D4EA3E) - cmd.exe (PID: 7584 cmdline:
cmd /c cop y /b ..\Tr ansmit + . .\Turtle + ..\Vienna + ..\Diet + ..\Encl osure + .. \Banglades h + ..\Mob ility + .. \Cool + .. \Completel y A MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B) - Welding.pif (PID: 7600 cmdline:
Welding.pi f A MD5: 18CE19B57F43CE0A5AF149C96AECC685) - Welding.pif (PID: 7964 cmdline:
C:\Users\u ser\AppDat a\Local\Te mp\773416\ Welding.pi f MD5: 18CE19B57F43CE0A5AF149C96AECC685) - 478F.tmp.exe (PID: 8096 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\478F.t mp.exe" MD5: E35C6AD41081DDCDA2BA9C65B5B1A6F8) - WerFault.exe (PID: 3612 cmdline:
C:\Windows \SysWOW64\ WerFault.e xe -u -p 8 096 -s 104 8 MD5: C31336C1EFC2CCB44B4326EA793040F2) - choice.exe (PID: 7616 cmdline:
choice /d y /t 5 MD5: FCE0E41C87DC4ABBE976998AD26C27E4)
- 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://62.204.41.150/edd20096ecef326d.php", "Botnet": "default6_cap"}
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 | ||
Windows_Trojan_RedLineStealer_ed346e4c | unknown | unknown |
| |
JoeSecurity_Stealc | Yara detected Stealc | Joe Security | ||
Windows_Trojan_Smokeloader_3687686f | unknown | unknown |
| |
JoeSecurity_Stealc | Yara detected Stealc | Joe Security | ||
Click to see the 3 entries |
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_Stealc | Yara detected Stealc | Joe Security | ||
JoeSecurity_Stealc | Yara detected Stealc | Joe Security | ||
Click to see the 1 entries |
System Summary |
---|
Source: | Author: Max Altgelt (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 |
---|---|---|---|---|---|---|---|---|
2024-10-08T03:52:47.570397+0200 | 2044243 | 1 | Malware Command and Control Activity Detected | 192.168.2.4 | 60062 | 62.204.41.150 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2024-10-08T03:52:43.269522+0200 | 2803274 | 2 | Potentially Bad Traffic | 192.168.2.4 | 60060 | 172.67.179.207 | 443 | TCP |
2024-10-08T03:52:44.114430+0200 | 2803274 | 2 | Potentially Bad Traffic | 192.168.2.4 | 60061 | 176.113.115.37 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
---|
Source: | Avira: | ||
Source: | Avira: |
Source: | Malware Configuration Extractor: |
Source: | Virustotal: | Perma Link | ||
Source: | Virustotal: | Perma Link | ||
Source: | Virustotal: | Perma Link | ||
Source: | Virustotal: | Perma Link | ||
Source: | Virustotal: | Perma Link | ||
Source: | Virustotal: | Perma Link |
Source: | ReversingLabs: | |||
Source: | Virustotal: | Perma Link | ||
Source: | ReversingLabs: | |||
Source: | Virustotal: | Perma Link | ||
Source: | Virustotal: | Perma Link |
Source: | Virustotal: | Perma Link |
Source: | Integrated Neural Analysis Model: |
Source: | Joe Sandbox ML: | ||
Source: | Joe Sandbox ML: |
Source: | Code function: | 16_2_0040C820 | |
Source: | Code function: | 16_2_00407240 | |
Source: | Code function: | 16_2_00409AC0 | |
Source: | Code function: | 16_2_00418EA0 | |
Source: | Code function: | 16_2_00409B60 | |
Source: | Code function: | 16_2_022ACA87 | |
Source: | Code function: | 16_2_022A74A7 | |
Source: | Code function: | 16_2_022A9D27 | |
Source: | Code function: | 16_2_022B9107 | |
Source: | Code function: | 16_2_022A9DC7 |
Compliance |
---|
Source: | Unpacked PE file: |
Source: | Static PE information: |
Source: | File opened: | Jump to behavior |
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: | Code function: | 15_2_00114005 | |
Source: | Code function: | 15_2_000BE26E | |
Source: | Code function: | 15_2_0011C2FF | |
Source: | Code function: | 15_2_0011494A | |
Source: | Code function: | 15_2_0011CD14 | |
Source: | Code function: | 15_2_0011CD9F | |
Source: | Code function: | 15_2_0011F5D8 | |
Source: | Code function: | 15_2_0011F735 | |
Source: | Code function: | 15_2_0011FA36 | |
Source: | Code function: | 15_2_00113CE2 | |
Source: | Code function: | 16_2_0040E430 | |
Source: | Code function: | 16_2_004138B0 | |
Source: | Code function: | 16_2_00414570 | |
Source: | Code function: | 16_2_00414910 | |
Source: | Code function: | 16_2_0040ED20 | |
Source: | Code function: | 16_2_0040BE70 | |
Source: | Code function: | 16_2_0040DE10 | |
Source: | Code function: | 16_2_004016D0 | |
Source: | Code function: | 16_2_0040DA80 | |
Source: | Code function: | 16_2_00413EA0 | |
Source: | Code function: | 16_2_0040F6B0 | |
Source: | Code function: | 16_2_022AE697 | |
Source: | Code function: | 16_2_022B3B17 | |
Source: | Code function: | 16_2_022B4B77 | |
Source: | Code function: | 16_2_022AEF87 | |
Source: | Code function: | 16_2_022B47D7 | |
Source: | Code function: | 16_2_022AE077 | |
Source: | Code function: | 16_2_022ADCE7 | |
Source: | Code function: | 16_2_022AC0D7 | |
Source: | Code function: | 16_2_022A1937 | |
Source: | Code function: | 16_2_022B4107 | |
Source: | Code function: | 16_2_022AF917 |
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 |
Networking |
---|
Source: | Suricata IDS: |
Source: | URLs: |
Source: | HTTP traffic detected: |