Analysis
- max time kernel
47s - max time network
146s - platform
windows7_x64 - resource
win7v20201028 - submitted
10/03/2021, 07:54
General
- Target TAY YOUNG 478535 _TVOP - Mio, pdf.exe
- Size 959KB
- Sample210310-yssave534j
- SHA256 5fb48652e5909992ab84d9b849e19aebdef214eba613be1fb18b576ee8dfc618
Malware Config
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 3 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.
- 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
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\TAY YOUNG 478535 _TVOP - Mio, pdf.exe"C:\Users\Admin\AppData\Local\Temp\TAY YOUNG 478535 _TVOP - Mio, pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\TAY YOUNG 478535 _TVOP - Mio, pdf.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/432-9-0x0000000000400000-0x000000000046A000-memory.dmp
memory/432-11-0x00000000741A0000-0x000000007488E000-memory.dmp
memory/432-12-0x0000000000400000-0x000000000046A000-memory.dmp
memory/432-14-0x00000000008B0000-0x00000000008B1000-memory.dmp
memory/1904-2-0x00000000741A0000-0x000000007488E000-memory.dmp
memory/1904-3-0x0000000000910000-0x0000000000911000-memory.dmp
memory/1904-5-0x0000000000540000-0x0000000000541000-memory.dmp
memory/1904-6-0x0000000000530000-0x0000000000532000-memory.dmp
memory/1904-7-0x0000000005190000-0x0000000005204000-memory.dmp
memory/1904-8-0x0000000004980000-0x00000000049F0000-memory.dmp