Analysis
- max time kernel
146s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240319-en - resource tags
- submitted
01/04/2024, 11:20
General
- Target Hitomi Downloader.exe
- Size 9.7MB
- Sample240401-nfenvada2t
- SHA256 2b5bf75c0aede1169e7aa2b4c760b1852f34990d5b8ce27ca2fa21efa35e0635
Malware Config
Signatures
- RisePro
RisePro stealer is an infostealer distributed by PrivateLoader.
- Downloads MZ/PE file
- 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 8 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Hitomi Downloader.exe"C:\Users\Admin\AppData\Local\Temp\Hitomi Downloader.exe"1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Users\Admin\AppData\Local\Temp\Update.exe"C:\Users\Admin\AppData\Local\Temp\Update.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
-
-
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=1300 --field-trial-handle=2276,i,5672504106535478802,17394903851940863593,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Update.exe
memory/860-0-0x0000000075370000-0x0000000075921000-memory.dmp
memory/860-1-0x0000000075370000-0x0000000075921000-memory.dmp
memory/860-2-0x00000000014F0000-0x0000000001500000-memory.dmp
memory/860-3-0x00000000014F0000-0x0000000001500000-memory.dmp
memory/860-4-0x0000000075370000-0x0000000075921000-memory.dmp
memory/860-5-0x00000000014F0000-0x0000000001500000-memory.dmp
memory/860-6-0x00000000014F0000-0x0000000001500000-memory.dmp
memory/860-34-0x00000000014F0000-0x0000000001500000-memory.dmp
memory/860-32-0x00000000014F0000-0x0000000001500000-memory.dmp
memory/4796-23-0x00000000033C0000-0x00000000033C1000-memory.dmp
memory/4796-20-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/4796-19-0x0000000001890000-0x0000000001891000-memory.dmp
memory/4796-22-0x00000000033B0000-0x00000000033B1000-memory.dmp
memory/4796-24-0x00000000033D0000-0x00000000033D1000-memory.dmp
memory/4796-25-0x00000000006D0000-0x0000000001212000-memory.dmp
memory/4796-27-0x00000000033E0000-0x00000000033E1000-memory.dmp
memory/4796-31-0x00000000006D0000-0x0000000001212000-memory.dmp
memory/4796-21-0x00000000006D0000-0x0000000001212000-memory.dmp
memory/4796-18-0x0000000001880000-0x0000000001881000-memory.dmp