Analysis
- max time kernel
162s - max time network
138s - platform
windows10_x64 - resource
win10v20210408 - submitted
30/08/2021, 13:12
General
- Target 9aab484a5709f7565d8553d19e21f589.exe
- Size 1.2MB
- Sample210830-afhz8flefa
- SHA256 fbe10985705a09416e36fe4bed6c63a58e7bcdcecec469f0c025ff6f5d09360e
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot1880141509:AAHjseWsCVnzygKB72YGbdj6S0DpdeKfGSs/sendDocument
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 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.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\9aab484a5709f7565d8553d19e21f589.exe"C:\Users\Admin\AppData\Local\Temp\9aab484a5709f7565d8553d19e21f589.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\bOjNHI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8483.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\9aab484a5709f7565d8553d19e21f589.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\9aab484a5709f7565d8553d19e21f589.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1212-135-0x0000000006600000-0x0000000006601000-memory.dmp
memory/1212-134-0x0000000005A80000-0x0000000005A81000-memory.dmp
memory/1212-133-0x0000000005910000-0x0000000005E0E000-memory.dmp
memory/1212-127-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4796-119-0x0000000003410000-0x0000000003411000-memory.dmp
memory/4796-123-0x0000000007630000-0x00000000076C2000-memory.dmp
memory/4796-124-0x000000000A180000-0x000000000A1CE000-memory.dmp
memory/4796-122-0x00000000032D0000-0x00000000032DE000-memory.dmp
memory/4796-121-0x0000000005870000-0x000000000590C000-memory.dmp
memory/4796-120-0x0000000005B70000-0x0000000005B71000-memory.dmp
memory/4796-114-0x0000000000F10000-0x0000000000F11000-memory.dmp
memory/4796-118-0x00000000059B0000-0x00000000059B1000-memory.dmp
memory/4796-117-0x0000000005EB0000-0x0000000005EB1000-memory.dmp
memory/4796-116-0x0000000005910000-0x0000000005911000-memory.dmp