Analysis
- max time kernel
76s - max time network
133s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
28/04/2023, 04:39
General
- Target Halkbank_Ekstre_20230426_075819_154055.exe
- Size 1.1MB
- Sample230428-e9zrfadg6v
- SHA256 b397cca1a04a9edb50e12c5f730cb660dff805000e6576455218dfd73a85e7f2
Malware Config
Extracted
-
snakekeylogger
-
https://api.telegram.org/bot5587666659:AAG8NrrXJQs__dhk8nLJBFOspz2my8OVpX0/sendMessage?chat_id=5569775004
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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20230426_075819_154055.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/804-66-0x0000000000400000-0x0000000000426000-memory.dmp
memory/804-68-0x0000000000400000-0x0000000000426000-memory.dmp
memory/804-72-0x0000000004CF0000-0x0000000004D30000-memory.dmp
memory/804-71-0x0000000004CF0000-0x0000000004D30000-memory.dmp
memory/804-70-0x0000000000400000-0x0000000000426000-memory.dmp
memory/804-64-0x0000000000400000-0x0000000000426000-memory.dmp
memory/804-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/804-61-0x0000000000400000-0x0000000000426000-memory.dmp
memory/804-62-0x0000000000400000-0x0000000000426000-memory.dmp
memory/804-63-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1432-55-0x0000000004E00000-0x0000000004E40000-memory.dmp
memory/1432-60-0x00000000044C0000-0x00000000044E8000-memory.dmp
memory/1432-54-0x0000000000FA0000-0x00000000010B6000-memory.dmp
memory/1432-59-0x0000000004B60000-0x0000000004BC2000-memory.dmp
memory/1432-58-0x0000000000960000-0x000000000096C000-memory.dmp
memory/1432-57-0x0000000004E00000-0x0000000004E40000-memory.dmp
memory/1432-56-0x0000000000480000-0x0000000000492000-memory.dmp