Analysis
- max time kernel
142s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
11/06/2024, 18:53
General
- Target 9f35961be31f1f9cdf24d5e20b9536fe_JaffaCakes118.exe
- Size 1.3MB
- Sample240611-xjp4esxdmb
- SHA256 3642ba0e262f576c152453beb30380803be88543afe6a229d2dc77ebe03531b4
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\9f35961be31f1f9cdf24d5e20b9536fe_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\9f35961be31f1f9cdf24d5e20b9536fe_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\MSInstall\MSBuild.exe"C:\Users\Admin\AppData\Local\Temp\MSInstall\MSBuild.exe"2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3828 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
MSBuild.exe
memory/1944-11-0x00007FFDB9663000-0x00007FFDB9665000-memory.dmp
memory/1944-12-0x0000000000750000-0x00000000007FE000-memory.dmp
memory/1944-13-0x00007FFDB9663000-0x00007FFDB9665000-memory.dmp
memory/1944-14-0x0000000002890000-0x00000000028CA000-memory.dmp
memory/1944-15-0x00007FFDB9660000-0x00007FFDBA121000-memory.dmp
memory/1944-16-0x00007FFDB9660000-0x00007FFDBA121000-memory.dmp
memory/1944-17-0x0000000002930000-0x000000000293A000-memory.dmp
memory/1944-18-0x000000001C2F0000-0x000000001C340000-memory.dmp
memory/1944-19-0x00007FFDB9660000-0x00007FFDBA121000-memory.dmp
memory/1944-20-0x00007FFDB9660000-0x00007FFDBA121000-memory.dmp