Analysis
- max time kernel
83s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
19/01/2023, 12:19
General
- Target bdd2047e6d281cd44f9d3fc99b0fcd7f.exe
- Size 407KB
- Sample230119-pg6pdsfh27
- SHA256 77a8dd63bb9b99da6daa8291b894e4a1dc05d8476abd943d728798760fb1422b
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- Executes dropped EXE 2 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
- 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 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\bdd2047e6d281cd44f9d3fc99b0fcd7f.exe"C:\Users\Admin\AppData\Local\Temp\bdd2047e6d281cd44f9d3fc99b0fcd7f.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\zvaidm.exe"C:\Users\Admin\AppData\Local\Temp\zvaidm.exe" C:\Users\Admin\AppData\Local\Temp\juhxdvt.ut2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\zvaidm.exe"C:\Users\Admin\AppData\Local\Temp\zvaidm.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
gspzpf.hoa
juhxdvt.ut
zvaidm.exe
zvaidm.exe
zvaidm.exe
memory/5088-139-0x0000000000400000-0x0000000000438000-memory.dmp
memory/5088-140-0x0000000004A90000-0x0000000005034000-memory.dmp
memory/5088-141-0x0000000004980000-0x0000000004A1C000-memory.dmp
memory/5088-142-0x0000000005C80000-0x0000000005E42000-memory.dmp
memory/5088-143-0x0000000005E50000-0x0000000005EE2000-memory.dmp
memory/5088-144-0x0000000005F60000-0x0000000005F6A000-memory.dmp