Analysis
- max time kernel
119s - max time network
133s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
25/10/2021, 06:09
General
- Target INVOICE 004.pdf.exe
- Size 18KB
- Sample211025-gwf4aagehl
- SHA256 8e2a4b1e4cbecbe4f157cc6edda64c32b856fb53cb3c265c4d49175d597b7541
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot2011911710:AAFbAKM_5V9w0QGHqXxcRu9A7iFSTWlskIg/sendMessage?chat_id=1293496579
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Downloads MZ/PE file
- 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 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 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\INVOICE 004.pdf.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE 004.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\INVOICE 004.pdf.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE 004.pdf.exe"2⤵
- 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
memory/1260-121-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1260-128-0x0000000005020000-0x00000000050BC000-memory.dmp
memory/1260-129-0x0000000006430000-0x0000000006431000-memory.dmp
memory/1260-130-0x0000000006600000-0x0000000006601000-memory.dmp
memory/1260-131-0x00000000063D0000-0x00000000063D1000-memory.dmp
memory/2864-115-0x0000000000640000-0x0000000000641000-memory.dmp
memory/2864-117-0x0000000005470000-0x0000000005471000-memory.dmp
memory/2864-118-0x0000000004E30000-0x0000000004E31000-memory.dmp
memory/2864-119-0x0000000004E00000-0x0000000004E1B000-memory.dmp
memory/2864-120-0x0000000005F80000-0x0000000005F81000-memory.dmp