Analysis
- max time kernel
42s - max time network
145s - platform
windows7_x64 - resource
win7-20220414-en - submitted
29/06/2022, 16:03
General
- Target Agency Appointment + Voyage Orders.exe
- Size 493KB
- Sample220629-thb9dsced3
- SHA256 675e2bcfc67dce57958c5f8acd387433bd678b2f5da5dac390f4dd2baca11d3f
Malware Config
Extracted
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snakekeylogger
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Protocol
smtp
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Host
mail.valleycountysar.org
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Port
26
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Username
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Password
PeUL%Y]lsfzK
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Email to
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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Agency Appointment + Voyage Orders.exe"C:\Users\Admin\AppData\Local\Temp\Agency Appointment + Voyage Orders.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\VXYTvqWadYLU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7263.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Agency Appointment + Voyage Orders.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmp7263.tmp
memory/1160-57-0x00000000045C0000-0x0000000004632000-memory.dmp
memory/1160-54-0x0000000000A70000-0x0000000000AF4000-memory.dmp
memory/1160-58-0x0000000000A40000-0x0000000000A66000-memory.dmp
memory/1160-56-0x00000000002A0000-0x00000000002AA000-memory.dmp
memory/1160-55-0x0000000075581000-0x0000000075583000-memory.dmp
memory/2004-61-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2004-62-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2004-64-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2004-66-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2004-67-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2004-70-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2004-72-0x0000000000400000-0x0000000000426000-memory.dmp