Analysis
- max time kernel
113s - max time network
115s - platform
windows10_x64 - resource
win10v20201028 - submitted
09/11/2020, 20:47
General
- Target Cópia de pagamento_0100188654_10062020.exe
- Size 520KB
- Sample201109-d7lr5hflqx
- SHA256 4fc7415e4a84d6645a11260c1da7e68ed8a6a2a941cd706fc7060912ba4721ed
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.ductoslimpios.com.mx
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Port
587
-
Username
-
Password
Nhost+321
Extracted
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agenttesla
-
Protocol
smtp
-
Host
mail.ductoslimpios.com.mx
-
Port
587
-
Username
-
Password
Nhost+321
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 IoCs
- rezer0 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
- 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.
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Cópia de pagamento_0100188654_10062020.exe"C:\Users\Admin\AppData\Local\Temp\Cópia de pagamento_0100188654_10062020.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\JlDvBKad" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF7D3.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Cópia de pagamento_0100188654_10062020.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\netsh.exe"netsh" wlan show profile3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/900-13-0x0000000073430000-0x0000000073B1E000-memory.dmp
memory/900-18-0x0000000005510000-0x0000000005511000-memory.dmp
memory/900-22-0x00000000066B0000-0x00000000066B1000-memory.dmp
memory/900-19-0x00000000061C0000-0x00000000061C1000-memory.dmp
memory/900-10-0x0000000000400000-0x0000000000452000-memory.dmp
memory/4688-3-0x0000000007CE0000-0x0000000007CE1000-memory.dmp
memory/4688-4-0x0000000007880000-0x0000000007881000-memory.dmp
memory/4688-1-0x00000000006F0000-0x00000000006F1000-memory.dmp
memory/4688-0-0x0000000073430000-0x0000000073B1E000-memory.dmp
memory/4688-5-0x0000000002A10000-0x0000000002A1C000-memory.dmp
memory/4688-7-0x00000000082E0000-0x0000000008333000-memory.dmp
memory/4688-6-0x00000000079C0000-0x00000000079C1000-memory.dmp