Analysis
- max time kernel
53s - max time network
120s - platform
windows7_x64 - resource
win7-20220812-en - resource tags
- submitted
01/11/2022, 15:18
General
- Target Draft Documents.exe
- Size 915KB
- Sample221101-spk97sdaa3
- SHA256 275a5d67eb4e4f78c290a259d63cca1f0b9ea0a13abb0ff8b5eb36160f941a79
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot1507062795:AAEBb0H5OYbp-dWwXk8ffQp0InjOhKxhpbU/sendMessage?chat_id=1663822858
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 6 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.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Draft Documents.exe"C:\Users\Admin\AppData\Local\Temp\Draft Documents.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nbKgiEPdzGD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDD36.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Draft Documents.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\Draft Documents.exe"{path}"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
tmpDD36.tmp
memory/836-57-0x00000000048E0000-0x0000000004954000-memory.dmp
memory/836-55-0x0000000075AD1000-0x0000000075AD3000-memory.dmp
memory/836-54-0x0000000000180000-0x000000000026A000-memory.dmp
memory/836-58-0x00000000006A0000-0x00000000006C6000-memory.dmp
memory/836-56-0x00000000002F0000-0x0000000000302000-memory.dmp
memory/1360-67-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1360-61-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1360-62-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1360-64-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1360-66-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1360-70-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1360-72-0x0000000000400000-0x0000000000426000-memory.dmp