Analysis
- max time kernel
91s - max time network
16s - platform
windows7_x64 - resource
win7v200722 - submitted
31/08/2020, 09:03
General
- Target PURCHASE ORDER (PO.4029530).exe
- Size 615KB
- Sample200831-e6bgjf57bx
- SHA256 aea7319d67789e4e524c4af9bcb842d66593a97dff25cb4be43eee5f5fb86963
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 7 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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- 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 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER (PO.4029530).exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER (PO.4029530).exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\djlNlFkpBw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB8E3.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER (PO.4029530).exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1400-0-0x0000000074560000-0x0000000074C4E000-memory.dmp
memory/1400-1-0x0000000000E60000-0x0000000000E61000-memory.dmp
memory/1400-3-0x00000000003B0000-0x00000000003B3000-memory.dmp
memory/1400-4-0x0000000004B50000-0x0000000004BD1000-memory.dmp
memory/1400-5-0x0000000000450000-0x00000000004CE000-memory.dmp
memory/1992-9-0x0000000000400000-0x0000000000466000-memory.dmp
memory/1992-11-0x0000000000400000-0x0000000000466000-memory.dmp
memory/1992-12-0x0000000000400000-0x0000000000466000-memory.dmp
memory/1992-13-0x00000000744E0000-0x0000000074BCE000-memory.dmp