Analysis
- max time kernel
148s - max time network
152s - platform
windows10_x64 - resource
win10v20210408 - submitted
28/09/2021, 05:49
General
- Target Invoice M470031261, M470031262, M470031263.exe
- Size 549KB
- Sample210928-gh17asaff4
- SHA256 83177bc5d78b3fd5054543d6fc65d16b4576be79447ac5ee894a4b3b330e3764
Malware Config
Extracted
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snakekeylogger
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Protocol
smtp
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Host
smtp.vivaldi.net
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Port
587
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Username
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Password
favour123456789
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- 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.
- 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
- 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 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Invoice M470031261, M470031262, M470031263.exe"C:\Users\Admin\AppData\Local\Temp\Invoice M470031261, M470031262, M470031263.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\cJDaaPlsnip" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D4.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Invoice M470031261, M470031262, M470031263.exe"C:\Users\Admin\AppData\Local\Temp\Invoice M470031261, M470031262, M470031263.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Invoice M470031261, M470031262, M470031263.exe"C:\Users\Admin\AppData\Local\Temp\Invoice M470031261, M470031262, M470031263.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Invoice M470031261, M470031262, M470031263.exe"C:\Users\Admin\AppData\Local\Temp\Invoice M470031261, M470031262, M470031263.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/804-121-0x00000000054A0000-0x00000000054AE000-memory.dmp
memory/804-122-0x0000000006030000-0x0000000006081000-memory.dmp
memory/804-117-0x00000000053D0000-0x00000000053D1000-memory.dmp
memory/804-118-0x00000000054B0000-0x00000000054B1000-memory.dmp
memory/804-119-0x0000000005580000-0x0000000005581000-memory.dmp
memory/804-120-0x00000000053D0000-0x00000000058CE000-memory.dmp
memory/804-123-0x0000000006190000-0x00000000061B1000-memory.dmp
memory/804-114-0x0000000000940000-0x0000000000941000-memory.dmp
memory/804-116-0x00000000058D0000-0x00000000058D1000-memory.dmp
memory/2880-131-0x0000000005890000-0x0000000005D8E000-memory.dmp
memory/2880-125-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2880-132-0x0000000006C60000-0x0000000006C61000-memory.dmp