Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
27/10/2026, 07:00
General
- Target 2026-10-26_c82f87a09efe6f773cd0ce646d921fb5_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe
- Size 406KB
- Sample261027-hslp2abs31
- SHA256 87d9f88d6346ecf87e02f0fd5e1a9e59d740ddae665696ed5f26280b25d6e7ae
Malware Config
Extracted
-
xworm
-
XWorm V5.6
-
Install_directory
%LocalAppData%
-
install_file
USB.exe
-
pastebin_url
https://pastebin.com/raw/Fxzr3jeT
Signatures
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 3 IoCs
- Custom signatureDetects Windows executables referencing non-Windows User-Agents 3 IoCs
- Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes a file named after a Windows system binary 1 TTPs 1 IoCs
The file runs from a user directory while carrying the name of an executable that normally only exists in System32.
- Executes dropped EXE 1 IoCs
- Modifies system executable filetype association 2 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- Modifies registry class 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-10-26_c82f87a09efe6f773cd0ce646d921fb5_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe"C:\Users\Admin\AppData\Local\Temp\2026-10-26_c82f87a09efe6f773cd0ce646d921fb5_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe"1⤵
- Modifies system executable filetype association
- Modifies registry class
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\Documents\diagnostics\audiodg.exe"C:\Users\Admin\Documents\diagnostics\audiodg.exe"2⤵
- Creates a file in the Startup directory
- Executes a file named after a Windows system binary
- Executes dropped EXE
- Adds Run key to start application
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Event Triggered Execution
1Change Default File Association
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Event Triggered Execution
1Change Default File Association
1Replay Monitor
Loading Replay Monitor...
Downloads
2026-10-26_c82f87a09efe6f773cd0ce646d921fb5_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm..exe
audiodg.exe
shost.exe
memory/3660-12-0x00007FFA676FF000-0x00007FFA67700000-memory.dmp
memory/3660-14-0x0000000000F10000-0x0000000000F26000-memory.dmp
memory/3660-15-0x00007FFA67570000-0x00007FFA67F14000-memory.dmp
memory/3660-16-0x00007FFA67570000-0x00007FFA67F14000-memory.dmp
memory/3660-17-0x00007FFA67570000-0x00007FFA67F14000-memory.dmp
memory/3660-21-0x00007FFA67570000-0x00007FFA67F14000-memory.dmp