Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
06/09/2024, 03:48
General
- Target ce93e8d0d7bcd6bd6275d04d5741d1b8_JaffaCakes118.exe
- Size 108KB
- Sample240906-ec6tgsvall
- SHA256 75d88142223054ed2cebe6ade54aeb69d0f8d271021c1969cbd59915196251a9
Malware Config
Extracted
-
guloader
-
http://icitius33xxx10314522289466.com/newavpn_encrypted_4D67F00.bin
-
https://veleaurasia.com/newavpn_encrypted_4D67F00.bin
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Guloader payload 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- 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: MapViewOfSection 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ce93e8d0d7bcd6bd6275d04d5741d1b8_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\ce93e8d0d7bcd6bd6275d04d5741d1b8_JaffaCakes118.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\Users\Admin\AppData\Local\Temp\ce93e8d0d7bcd6bd6275d04d5741d1b8_JaffaCakes118.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/1604-2-0x0000000002C50000-0x0000000002C58000-memory.dmp
memory/1604-3-0x00000000771C1000-0x00000000772E1000-memory.dmp
memory/1604-7-0x0000000002C50000-0x0000000002C58000-memory.dmp
memory/1604-8-0x00000000771C1000-0x00000000772E1000-memory.dmp
memory/1604-10-0x0000000002C50000-0x0000000002C58000-memory.dmp
memory/4600-5-0x00000000771C1000-0x00000000772E1000-memory.dmp
memory/4600-4-0x0000000000E10000-0x0000000000F10000-memory.dmp
memory/4600-9-0x0000000000E10000-0x0000000000F10000-memory.dmp