Analysis
- max time kernel
84s - max time network
113s - platform
windows10_x64 - resource
win10v20210410 - submitted
06/07/2021, 16:13
General
- Target Invoice_7734.exe
- Size 1.1MB
- Sample210706-1fme8d38d2
- SHA256 043c91c0f8bd07fdce3af1ccadf2afec896527684eacee91d78e7afe32173d51
Malware Config
Extracted
-
snakekeylogger
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Protocol
smtp
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Host
mail.greentrading.com.pk
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Port
26
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Username
-
Password
lovetoall
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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Invoice_7734.exe"C:\Users\Admin\AppData\Local\Temp\Invoice_7734.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\cpTzxZYkSeedB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4EEC.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Invoice_7734.exe"C:\Users\Admin\AppData\Local\Temp\Invoice_7734.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\Invoice_7734.exe"C:\Users\Admin\AppData\Local\Temp\Invoice_7734.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/696-137-0x0000000006B40000-0x0000000006B41000-memory.dmp
memory/696-134-0x00000000053B0000-0x00000000058AE000-memory.dmp
memory/696-127-0x0000000000400000-0x0000000000420000-memory.dmp
memory/3744-119-0x00000000051E0000-0x00000000051E1000-memory.dmp
memory/3744-123-0x0000000001280000-0x00000000012E8000-memory.dmp
memory/3744-124-0x0000000005DA0000-0x0000000005DD1000-memory.dmp
memory/3744-122-0x0000000005D50000-0x0000000005D5F000-memory.dmp
memory/3744-121-0x0000000005070000-0x000000000510C000-memory.dmp
memory/3744-120-0x0000000005450000-0x0000000005451000-memory.dmp
memory/3744-114-0x0000000000810000-0x0000000000811000-memory.dmp
memory/3744-118-0x00000000052D0000-0x00000000052D1000-memory.dmp
memory/3744-117-0x0000000005730000-0x0000000005731000-memory.dmp
memory/3744-116-0x0000000005110000-0x0000000005111000-memory.dmp