Resubmissions
06/12/2021, 10:42
211206-mrvzjadggm718/11/2021, 09:01
211118-kyyynafbd7718/11/2021, 08:53
211118-ktap9scbam7Analysis
- max time kernel
111s - max time network
129s - platform
windows10_x64 - resource
win10-en-20211104 - submitted
18/11/2021, 09:01
General
- Target 2098765234567890987660.E.exe
- Size 759KB
- Sample211118-kyyynafbd7
- SHA256 caa0fa101c0ee313ae591239f18dcd8fc37cb235af7dfb2e9de350d7f448d34b
Malware Config
Signatures
- Loads dropped DLL 1 IoCs
- 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
- Drops desktop.ini file(s) 2 IoCs
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"C:\Users\Admin\AppData\Local\Temp\2098765234567890987660.E.exe"2⤵
- Accesses Microsoft Outlook profiles
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3976-119-0x0000000000400000-0x000000000048B000-memory.dmp
memory/3976-121-0x0000000000400000-0x000000000048B000-memory.dmp
memory/3976-122-0x0000000002400000-0x0000000002401000-memory.dmp
memory/3976-123-0x0000000002401000-0x0000000002402000-memory.dmp
memory/3976-125-0x0000000002407000-0x0000000002408000-memory.dmp
memory/3976-124-0x0000000002402000-0x0000000002404000-memory.dmp
memory/3976-126-0x0000000002408000-0x0000000002409000-memory.dmp