Analysis
- max time kernel
150s - max time network
151s - platform
windows10_x64 - resource
win10v20201028 - 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 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.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\TAY YOUNG 478535 _TVOP - Mio, pdf.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\TAY YOUNG 478535 _TVOP - Mio, pdf.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\TAY YOUNG 478535 _TVOP - Mio, pdf.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/504-13-0x0000000000400000-0x000000000046A000-memory.dmp
memory/504-22-0x0000000006830000-0x0000000006831000-memory.dmp
memory/504-21-0x00000000056C0000-0x00000000056C1000-memory.dmp
memory/504-16-0x0000000073430000-0x0000000073B1E000-memory.dmp
memory/4692-7-0x00000000058D0000-0x00000000058D1000-memory.dmp
memory/4692-10-0x0000000007B20000-0x0000000007B21000-memory.dmp
memory/4692-11-0x0000000007DC0000-0x0000000007E34000-memory.dmp
memory/4692-12-0x000000000A350000-0x000000000A3C0000-memory.dmp
memory/4692-9-0x0000000005890000-0x0000000005892000-memory.dmp
memory/4692-8-0x0000000005710000-0x0000000005711000-memory.dmp
memory/4692-2-0x0000000073430000-0x0000000073B1E000-memory.dmp
memory/4692-6-0x0000000005790000-0x0000000005791000-memory.dmp
memory/4692-5-0x0000000005DF0000-0x0000000005DF1000-memory.dmp
memory/4692-3-0x0000000000CB0000-0x0000000000CB1000-memory.dmp