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 002.pdf.exe
- Size 18KB
- Sample211025-gwf4aaffd8
- SHA256 39a4ef63eed3420e394a7b9c0afd387ec27c4f70e1d293d2fe596ff3bf5ccd53
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 002.pdf.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE 002.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\INVOICE 002.pdf.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE 002.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/756-115-0x0000000000280000-0x0000000000281000-memory.dmp
memory/756-117-0x00000000050B0000-0x00000000050B1000-memory.dmp
memory/756-118-0x00000000025F0000-0x000000000260B000-memory.dmp
memory/756-119-0x0000000005BC0000-0x0000000005BC1000-memory.dmp
memory/756-120-0x0000000004BB0000-0x00000000050AE000-memory.dmp
memory/4280-124-0x0000000000500000-0x0000000000526000-memory.dmp
memory/4280-128-0x0000000004910000-0x0000000004E0E000-memory.dmp
memory/4280-129-0x0000000005CF0000-0x0000000005CF1000-memory.dmp
memory/4280-130-0x0000000005BD0000-0x0000000005BD1000-memory.dmp
memory/4280-131-0x0000000005BA0000-0x0000000005BA1000-memory.dmp