Analysis
- max time kernel
62s - max time network
118s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
04/04/2023, 15:22
General
- Target Confirmación de recibo de transferencia.exe
- Size 540KB
- Sample230404-srwtqaaa7x
- SHA256 9de26fd849696f46e6642548bb36fdc56cca315b717f95d7821e6520c2ea1b25
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
smtp.cerranor.com
-
Port
587
-
Username
-
Password
RxrpS#f2
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Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 7 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
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.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\Confirmación de recibo de transferencia.exe"C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"C:\Users\Admin\AppData\Local\Temp\Confirmación de recibo de transferencia.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1400-54-0x0000000001300000-0x000000000138E000-memory.dmp
memory/1400-55-0x0000000004C20000-0x0000000004C60000-memory.dmp
memory/1400-56-0x0000000000440000-0x0000000000454000-memory.dmp
memory/1400-57-0x0000000004C20000-0x0000000004C60000-memory.dmp
memory/1400-58-0x0000000000460000-0x000000000046C000-memory.dmp
memory/1400-59-0x0000000005040000-0x00000000050AE000-memory.dmp
memory/1400-60-0x00000000006F0000-0x00000000006F6000-memory.dmp
memory/1400-61-0x0000000000D40000-0x0000000000D68000-memory.dmp
memory/1772-62-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1772-64-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1772-63-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1772-66-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1772-65-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1772-67-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1772-69-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1772-71-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1772-72-0x0000000004B40000-0x0000000004B80000-memory.dmp
memory/1772-73-0x0000000004B40000-0x0000000004B80000-memory.dmp