Analysis
- max time kernel
148s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
20/06/2024, 17:24
General
- Target Output_protected.exe
- Size 8.2MB
- Sample240620-vyw46syfpg
- SHA256 fd8df8af1c321b577ab06cb56fedc05dcf3959bd30342d3b907f54a443c9827c
Malware Config
Extracted
-
xworm
-
2.2
-
testarosa.duckdns.org:7109
-
f54DQ6gNeWXFsQ22
-
install_file
recovery.exe
Signatures
- Detect Xworm Payload 1 IoCs
- Xworm
Xworm is a remote access trojan written in C#.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Themida packer 5 IoCs
Detects Themida, an advanced Windows software protection system.
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Output_protected.exe"C:\Users\Admin\AppData\Local\Temp\Output_protected.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Fx vip.exe"C:\Users\Admin\AppData\Roaming\Fx vip.exe"2⤵
- Executes dropped EXE
-
-
C:\Users\Admin\AppData\Roaming\Fxvip.exe"C:\Users\Admin\AppData\Roaming\Fxvip.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\Fxvip.exe"C:\Users\Admin\AppData\Roaming\Fxvip.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Fxvip.exe.log
Fx vip.exe
Fxvip.exe
memory/64-40-0x0000000005B20000-0x00000000060C4000-memory.dmp
memory/64-41-0x0000000005670000-0x0000000005702000-memory.dmp
memory/64-48-0x0000000075D90000-0x0000000075E80000-memory.dmp
memory/64-43-0x0000000005290000-0x000000000529A000-memory.dmp
memory/64-39-0x00000000012C0000-0x00000000012C6000-memory.dmp
memory/64-37-0x00000000009D0000-0x00000000009FA000-memory.dmp
memory/64-36-0x0000000075D90000-0x0000000075E80000-memory.dmp
memory/624-35-0x0000000140000000-0x0000000140C16000-memory.dmp
memory/920-38-0x0000000000400000-0x00000000011B2000-memory.dmp
memory/920-10-0x0000000005680000-0x000000000571C000-memory.dmp
memory/920-2-0x0000000075D90000-0x0000000075E80000-memory.dmp
memory/920-9-0x0000000000400000-0x00000000011B2000-memory.dmp
memory/920-34-0x0000000075D90000-0x0000000075E80000-memory.dmp
memory/920-6-0x0000000075D90000-0x0000000075E80000-memory.dmp
memory/920-8-0x0000000000400000-0x00000000011B2000-memory.dmp
memory/920-1-0x0000000075DB0000-0x0000000075DB1000-memory.dmp
memory/920-5-0x0000000075D90000-0x0000000075E80000-memory.dmp
memory/920-3-0x0000000075D90000-0x0000000075E80000-memory.dmp
memory/920-0-0x0000000000400000-0x00000000011B2000-memory.dmp
memory/920-4-0x0000000075D90000-0x0000000075E80000-memory.dmp
memory/3512-44-0x0000000000400000-0x0000000000410000-memory.dmp