Analysis
- max time kernel
148s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
16/10/2024, 05:03
General
- Target 7fd5435121f2cb4320b1bc49400152ec3fecce7f5ce0acce56f32c327126c970.exe
- Size 5.1MB
- Sample241016-fp7f8atenh
- SHA256 7fd5435121f2cb4320b1bc49400152ec3fecce7f5ce0acce56f32c327126c970
Malware Config
Extracted
-
xworm
-
3.1
-
xwor3july.duckdns.org:9402
-
JIs7HXfvmVwG8wtR
-
install_file
USB.exe
Signatures
- Detect Xworm Payload 1 IoCs
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Xworm
Xworm is a remote access trojan written in C#.
- Loads dropped DLL 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Drops file in System32 directory 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7fd5435121f2cb4320b1bc49400152ec3fecce7f5ce0acce56f32c327126c970.exe"C:\Users\Admin\AppData\Local\Temp\7fd5435121f2cb4320b1bc49400152ec3fecce7f5ce0acce56f32c327126c970.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\7fd5435121f2cb4320b1bc49400152ec3fecce7f5ce0acce56f32c327126c970.exe"C:\Users\Admin\AppData\Local\Temp\7fd5435121f2cb4320b1bc49400152ec3fecce7f5ce0acce56f32c327126c970.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
nsq87C2.tmp
nsq87C2.tmp
nsq87C2.tmp
nsq87C2.tmp
nsq885F.tmp
nsq885F.tmp
nsq885F.tmp
nsv8744.tmp
nsv8744.tmp
nsv8744.tmp
memory/2948-596-0x0000000000800000-0x0000000001A54000-memory.dmp
memory/2948-600-0x0000000077301000-0x0000000077421000-memory.dmp
memory/2948-604-0x0000000036980000-0x00000000369E6000-memory.dmp
memory/2948-603-0x0000000036970000-0x000000003697A000-memory.dmp
memory/2948-586-0x0000000001A60000-0x00000000030F4000-memory.dmp
memory/2948-587-0x0000000077388000-0x0000000077389000-memory.dmp
memory/2948-589-0x0000000001A60000-0x00000000030F4000-memory.dmp
memory/2948-602-0x00000000368C0000-0x0000000036952000-memory.dmp
memory/2948-597-0x0000000000800000-0x000000000080E000-memory.dmp
memory/2948-598-0x0000000035C40000-0x0000000035CDC000-memory.dmp
memory/2948-601-0x00000000361D0000-0x0000000036774000-memory.dmp
memory/4300-583-0x0000000077301000-0x0000000077421000-memory.dmp
memory/4300-582-0x0000000005060000-0x00000000066F4000-memory.dmp
memory/4300-585-0x0000000005060000-0x00000000066F4000-memory.dmp
memory/4300-584-0x0000000073F54000-0x0000000073F55000-memory.dmp