Analysis
- max time kernel
131s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
25/08/2024, 02:13
General
- Target bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe
- Size 120KB
- Sample240825-cnp9rsscmg
- SHA256 0512c8c515096734e33d52d39d554b683466183859b968f3c3fc525be6acd69e
Score
10/10
Malware Config
Extracted
Family
-
guloader
C2
-
https://drive.google.com/uc?export=download&id=1v78PFto3JJf_8bTs6JiFNPTELOwzYfT0
xor.base64
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
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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\bfe4aabcee56d9ea66622617e6a5fe4b_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\bfe4aabcee56d9ea66622617e6a5fe4b_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\bfe4aabcee56d9ea66622617e6a5fe4b_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/116-2-0x00000000022D0000-0x00000000022D8000-memory.dmp
memory/116-3-0x0000000077C11000-0x0000000077D31000-memory.dmp
memory/116-16-0x00000000022D0000-0x00000000022D8000-memory.dmp
memory/116-17-0x00000000022D0000-0x00000000022D8000-memory.dmp
memory/4836-5-0x0000000077C11000-0x0000000077D31000-memory.dmp
memory/4836-4-0x0000000000FC0000-0x00000000010C0000-memory.dmp