Analysis
- max time kernel
35s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
07/06/2024, 03:37
General
- Target XClient.exe
- Size 73KB
- Sample240607-d6fnqaab84
- SHA256 fff939bf8b7dba00e0e9245ad4a9b16a6207041ca5e7cff918704f5a5d3f562d
Score
10/10
Malware Config
Extracted
Family
-
xworm
Attributes
-
Install_directory
%AppData%
-
install_file
XClient.exe
-
pastebin_url
https://pastebin.com/raw/Xei4S8Yz
Signatures
- Detect Xworm Payload 1 IoCs
- Xworm
Xworm is a remote access trojan written in C#.
- Drops startup file 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3748 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/3192-0-0x00007FFED7BA3000-0x00007FFED7BA5000-memory.dmp
memory/3192-1-0x0000000000E80000-0x0000000000E98000-memory.dmp
memory/3192-6-0x00007FFED7BA0000-0x00007FFED8661000-memory.dmp
memory/3192-7-0x00007FFED7BA3000-0x00007FFED7BA5000-memory.dmp
memory/3192-8-0x00007FFED7BA0000-0x00007FFED8661000-memory.dmp
memory/3192-10-0x0000000002F30000-0x0000000002F3A000-memory.dmp
memory/3192-11-0x000000001BB20000-0x000000001BB2C000-memory.dmp