Analysis
- max time kernel
55s - max time network
154s - platform
windows7_x64 - resource
win7-20230220-en - resource tags
- submitted
07/03/2023, 12:27
General
- Target file.exe
- Size 774KB
- Sample230307-pmrseshc81
- SHA256 1896efa72cff54069401ed803a33765d3f6ca525aba0be3c5d7f27c9f9e02269
Malware Config
Extracted
-
snakekeylogger
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https://api.telegram.org/bot5875198898:AAHb7cYwGrkdJdBq0_UiL6kYLg7WcXhadcM/sendMessage?chat_id=5279616630
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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\testsohkf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\testsohkf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF5F4.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.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
tmpF5F4.tmp
memory/1424-78-0x0000000002670000-0x00000000026B0000-memory.dmp
memory/1676-71-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1676-72-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1676-79-0x0000000004100000-0x0000000004140000-memory.dmp
memory/1676-75-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1676-77-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1676-73-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1676-68-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1676-69-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1676-70-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1948-56-0x00000000003F0000-0x0000000000430000-memory.dmp
memory/1948-54-0x0000000000100000-0x00000000001C8000-memory.dmp
memory/1948-65-0x0000000004230000-0x0000000004258000-memory.dmp
memory/1948-57-0x00000000003F0000-0x0000000000430000-memory.dmp
memory/1948-59-0x00000000054A0000-0x0000000005540000-memory.dmp
memory/1948-58-0x0000000000490000-0x000000000049C000-memory.dmp
memory/1948-55-0x0000000000470000-0x0000000000486000-memory.dmp