Analysis
- max time kernel
142s - max time network
113s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
21/02/2023, 14:18
General
- Target File No65482 Rfq..exe
- Size 604KB
- Sample230221-rl9mysfa73
- SHA256 9d4bb6ad1ecf6354fa3839fc9ae30f458bfb8a4dc0c1b99ad024108113afa833
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 4 IoCs
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 3 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
- Adds Run key to start application 2 TTPs 1 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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\File No65482 Rfq..exe"C:\Users\Admin\AppData\Local\Temp\File No65482 Rfq..exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\xecjfsrfi.exe"C:\Users\Admin\AppData\Local\Temp\xecjfsrfi.exe" C:\Users\Admin\AppData\Local\Temp\iwnpg.a2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\xecjfsrfi.exe"C:\Users\Admin\AppData\Local\Temp\xecjfsrfi.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
igwtkyr.nui
iwnpg.a
xecjfsrfi.exe
xecjfsrfi.exe
xecjfsrfi.exe
xecjfsrfi.exe
xecjfsrfi.exe
xecjfsrfi.exe
xecjfsrfi.exe
memory/1492-73-0x0000000000400000-0x000000000048E000-memory.dmp
memory/1492-69-0x0000000000400000-0x000000000048E000-memory.dmp
memory/1492-75-0x0000000001F10000-0x0000000001F8C000-memory.dmp
memory/1492-76-0x0000000000400000-0x000000000048E000-memory.dmp
memory/1492-77-0x0000000004840000-0x0000000004880000-memory.dmp
memory/1492-78-0x0000000004840000-0x0000000004880000-memory.dmp
memory/1492-79-0x0000000004840000-0x0000000004880000-memory.dmp
memory/1492-80-0x00000000005D0000-0x00000000005DA000-memory.dmp
memory/1492-81-0x00000000053A0000-0x0000000005406000-memory.dmp
memory/1492-83-0x0000000004840000-0x0000000004880000-memory.dmp
memory/1788-72-0x0000000000230000-0x0000000000233000-memory.dmp