Analysis
- max time kernel
897s - max time network
899s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
12/01/2025, 12:56
General
- Target JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exe
- Size 156KB
- Sample250112-p6ebfasras
- SHA256 aead3b29e4eb3a2c5499b67eb81a609bd85944a1d7ec6b9557be527a0c566929
Malware Config
Extracted
-
asyncrat
-
0.5.7B
-
Default
-
winx.xcapdatap.capetown:6204
-
AsyncMutex_6SI8OkPnk
-
delay
3
-
install
false
-
install_folder
%AppData%
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
- Asyncrat family
- ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exeC:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exe cmd /c %SIGILL% "SIGTERM|DELETE|SIGKILL"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PqVwJtjSm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9A18.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dbf61f566a642cdd0df3fc1d078debb8.exe"{path}"2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
tmp9A18.tmp
memory/4384-20-0x0000000074990000-0x0000000075140000-memory.dmp
memory/4384-19-0x0000000074990000-0x0000000075140000-memory.dmp
memory/4384-18-0x0000000074990000-0x0000000075140000-memory.dmp
memory/4384-16-0x0000000074990000-0x0000000075140000-memory.dmp
memory/4384-14-0x0000000000400000-0x0000000000412000-memory.dmp
memory/4764-4-0x0000000074990000-0x0000000075140000-memory.dmp
memory/4764-6-0x0000000005110000-0x00000000051AC000-memory.dmp
memory/4764-8-0x000000007499E000-0x000000007499F000-memory.dmp
memory/4764-9-0x0000000074990000-0x0000000075140000-memory.dmp
memory/4764-10-0x0000000005B40000-0x0000000005B58000-memory.dmp
memory/4764-7-0x0000000004E70000-0x0000000004E78000-memory.dmp
memory/4764-5-0x0000000004E80000-0x0000000004E8A000-memory.dmp
memory/4764-0-0x000000007499E000-0x000000007499F000-memory.dmp
memory/4764-17-0x0000000074990000-0x0000000075140000-memory.dmp
memory/4764-3-0x0000000004EA0000-0x0000000004F32000-memory.dmp
memory/4764-2-0x0000000005450000-0x00000000059F4000-memory.dmp
memory/4764-1-0x0000000000490000-0x00000000004BC000-memory.dmp