Analysis
- max time kernel
139s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
22/12/2023, 14:10
General
- Target Remittance Advice.exe
- Size 515KB
- Sample231222-rgn6fsabc3
- SHA256 13f500cb766e4c37869fb3286cbefb2c2ecefb4a799ef7e5723f574a842d5647
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 2 IoCs
- 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
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Remittance Advice.exe"C:\Users\Admin\AppData\Local\Temp\Remittance Advice.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/64-13-0x0000000075250000-0x0000000075A00000-memory.dmp
memory/64-8-0x0000000000400000-0x0000000000426000-memory.dmp
memory/64-17-0x0000000006650000-0x000000000665A000-memory.dmp
memory/64-16-0x00000000067F0000-0x00000000069B2000-memory.dmp
memory/64-15-0x00000000065D0000-0x0000000006620000-memory.dmp
memory/64-11-0x0000000075250000-0x0000000075A00000-memory.dmp
memory/64-14-0x00000000055F0000-0x0000000005600000-memory.dmp
memory/64-12-0x00000000055F0000-0x0000000005600000-memory.dmp
memory/116-5-0x0000000005950000-0x00000000059E2000-memory.dmp
memory/116-10-0x0000000075250000-0x0000000075A00000-memory.dmp
memory/116-0-0x0000000000E50000-0x0000000000ED6000-memory.dmp
memory/116-7-0x0000000005920000-0x0000000005928000-memory.dmp
memory/116-1-0x0000000075250000-0x0000000075A00000-memory.dmp
memory/116-6-0x0000000005A90000-0x0000000005B2C000-memory.dmp
memory/116-4-0x0000000005E40000-0x00000000063E4000-memory.dmp
memory/116-2-0x0000000005830000-0x0000000005840000-memory.dmp
memory/116-3-0x0000000005840000-0x0000000005894000-memory.dmp