Windows
Analysis Report
ADtours0121025.Vbs.vbs
Overview
General Information
Detection
FormBook
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Antivirus detection for dropped file
Malicious sample detected (through community Yara rule)
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
VBScript performs obfuscated calls to suspicious functions
Yara detected FormBook
AI detected suspicious sample
Binary is likely a compiled AutoIt script file
Found direct / indirect Syscall (likely to bypass EDR)
Found suspicious powershell code related to unpacking or dynamic code loading
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Powershell drops PE file
Queues an APC in another process (thread injection)
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
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 steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
AV process strings found (often used to terminate AV products)
Checks if the current process is being debugged
Contains functionality for execution timing, often used to detect debuggers
Contains functionality for read data from the clipboard
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to block mouse and keyboard input (often used to hinder debugging)
Contains functionality to call native functions
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 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 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)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Drops PE files
Extensive use of GetProcAddress (often used to hide API calls)
Found WSH timer for Javascript or VBS script (likely evasive script)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
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
Java / VBScript file with very long strings (likely obfuscated code)
May sleep (evasive loops) to hinder dynamic analysis
OS version to string mapping found (often used in BOTs)
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)
Sigma detected: Script Initiated Connection
Sigma detected: Uncommon Svchost Parent Process
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Uses code obfuscation techniques (call, push, ret)
Yara signature match
Classification
- System is w10x64
wscript.exe (PID: 4032 cmdline:
C:\Windows \System32\ WScript.ex e "C:\User s\user\Des ktop\ADtou rs0121025. Vbs.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80) powershell.exe (PID: 6812 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" -NoProfile -Executio nPolicy Re moteSigned -File "C: \Temp\scri pt.ps1" MD5: 04029E121A0CFA5991749937DD22A1D9) conhost.exe (PID: 880 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) x.exe (PID: 6712 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\x.exe" MD5: 2C1BDC899ED7D3078E5498735EB1E917) svchost.exe (PID: 3148 cmdline:
"C:\Users\ user\AppDa ta\Local\T emp\x.exe" MD5: 1ED18311E3DA35942DB37D15FA40CC5B) XG4tzkOqVF.exe (PID: 5760 cmdline:
"C:\Progra m Files (x 86)\PQbcYr QgjllyaAky tkURpQHDtR vpRmgYcbZH lIRNMCsQED \OhGqbzDwI 4.exe" MD5: 9C98D1A23EFAF1B156A130CEA7D2EE3A) sxstrace.exe (PID: 1240 cmdline:
"C:\Window s\SysWOW64 \sxstrace. exe" MD5: 209969CD31095C47FFB25959B10917F3) XG4tzkOqVF.exe (PID: 2220 cmdline:
"C:\Progra m Files (x 86)\PQbcYr QgjllyaAky tkURpQHDtR vpRmgYcbZH lIRNMCsQED \88Sd4usX1 OfX.exe" MD5: 9C98D1A23EFAF1B156A130CEA7D2EE3A) firefox.exe (PID: 348 cmdline:
"C:\Progra m Files\Mo zilla Fire fox\Firefo x.exe" MD5: C86B1BE9ED6496FE0E0CBE73F81D8045)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
Formbook, Formbo | FormBook contains a unique crypter RunPE that has unique behavioral patterns subject to detection. It was initially called "Babushka Crypter" by Insidemalware. |
⊘No configs have been found
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
Click to see the 4 entries |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security | ||
JoeSecurity_FormBook_1 | Yara detected FormBook | Joe Security |
System Summary |
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Source: | Author: frack113, Florian Roth: |
Source: | Author: Margaritis Dimitrios (idea), Florian Roth (Nextron Systems), oscd.community: |
Source: | Author: frack113: |
Source: | Author: Florian Roth (Nextron Systems): |
Source: | Author: Michael Haag: |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |
Source: | Author: vburov: |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
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2025-01-21T16:46:18.469199+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.8 | 49709 | 217.160.0.207 | 80 | TCP |
2025-01-21T16:46:43.609261+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.8 | 49750 | 47.83.1.90 | 80 | TCP |
2025-01-21T16:46:57.802009+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.8 | 49847 | 67.223.117.189 | 80 | TCP |
2025-01-21T16:47:11.407936+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.8 | 49930 | 72.14.185.43 | 80 | TCP |
2025-01-21T16:47:24.763992+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.8 | 49991 | 38.180.49.167 | 80 | TCP |
2025-01-21T16:47:38.570070+0100 | 2050745 | 1 | Malware Command and Control Activity Detected | 192.168.2.8 | 49995 | 68.65.122.71 | 80 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-01-21T16:45:28.226688+0100 | 2018856 | 1 | A Network Trojan was detected | 92.205.22.61 | 443 | 192.168.2.8 | 49704 | TCP |
Timestamp | SID | Severity | Classtype | Source IP | Source Port | Destination IP | Destination Port | Protocol |
---|---|---|---|---|---|---|---|---|
2025-01-21T16:46:35.213074+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49711 | 47.83.1.90 | 80 | TCP |
2025-01-21T16:46:37.105685+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49718 | 47.83.1.90 | 80 | TCP |
2025-01-21T16:46:40.306786+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49734 | 47.83.1.90 | 80 | TCP |
2025-01-21T16:46:50.199989+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49796 | 67.223.117.189 | 80 | TCP |
2025-01-21T16:46:52.706628+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49812 | 67.223.117.189 | 80 | TCP |
2025-01-21T16:46:55.250929+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49828 | 67.223.117.189 | 80 | TCP |
2025-01-21T16:47:03.779921+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49880 | 72.14.185.43 | 80 | TCP |
2025-01-21T16:47:06.359808+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49896 | 72.14.185.43 | 80 | TCP |
2025-01-21T16:47:08.875008+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49912 | 72.14.185.43 | 80 | TCP |
2025-01-21T16:47:17.097250+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49965 | 38.180.49.167 | 80 | TCP |
2025-01-21T16:47:19.660285+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49982 | 38.180.49.167 | 80 | TCP |
2025-01-21T16:47:22.268796+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49990 | 38.180.49.167 | 80 | TCP |
2025-01-21T16:47:30.815203+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49992 | 68.65.122.71 | 80 | TCP |
2025-01-21T16:47:33.026023+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49993 | 68.65.122.71 | 80 | TCP |
2025-01-21T16:47:36.024396+0100 | 2855464 | 1 | A Network Trojan was detected | 192.168.2.8 | 49994 | 68.65.122.71 | 80 | TCP |
Click to jump to signature section
Show All Signature Results
AV Detection |
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Source: | Code function: | 5_2_002B60DD | |
Source: | Code function: | 5_2_002B63F9 | |
Source: | Code function: | 5_2_002BEB60 | |
Source: | Code function: | 5_2_002B6CA9 | |
Source: | Code function: | 5_2_002BF56F | |
Source: | Code function: | 5_2_002BF5FA | |
Source: | Code function: | 5_2_002C1B2F | |
Source: | Code function: | 5_2_002C1C8A | |
Source: | Code function: | 5_2_002C1F94 |
Software Vulnerabilities |
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Networking |
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Source: | Code function: | 5_2_002C4EB5 |
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