Analysis
- max time kernel
147s - max time network
145s - platform
windows10_x64 - resource
win10v20201028 - submitted
02/12/2020, 16:34
General
- Target DHL SHIPPING AND TRACKING DOCUMENT_PDF_1.exe
- Size 751KB
- Sample201202-a5xqf574ba
- SHA256 068e09db64c69a2e1b69a791dc3a2756f6fa1091b56ff47285dadd8f425ebe9d
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.specialmetal.ir
-
Port
587
-
Username
-
Password
02188985257
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 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.
- Looks up external IP address via web service 2 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 2 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DHL SHIPPING AND TRACKING DOCUMENT_PDF_1.exe"C:\Users\Admin\AppData\Local\Temp\DHL SHIPPING AND TRACKING DOCUMENT_PDF_1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ypbtRz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2A4D.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\DHL SHIPPING AND TRACKING DOCUMENT_PDF_1.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/636-11-0x0000000006220000-0x00000000062D0000-memory.dmp
memory/636-6-0x0000000004BC0000-0x0000000004BC1000-memory.dmp
memory/636-7-0x0000000004B40000-0x0000000004B41000-memory.dmp
memory/636-8-0x0000000005A50000-0x0000000005A51000-memory.dmp
memory/636-9-0x0000000004E80000-0x0000000004E81000-memory.dmp
memory/636-10-0x0000000004E60000-0x0000000004E6E000-memory.dmp
memory/636-2-0x00000000739E0000-0x00000000740CE000-memory.dmp
memory/636-3-0x0000000000270000-0x0000000000271000-memory.dmp
memory/636-5-0x0000000005020000-0x0000000005021000-memory.dmp
memory/1344-14-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1344-17-0x00000000739E0000-0x00000000740CE000-memory.dmp
memory/1344-22-0x0000000005550000-0x0000000005551000-memory.dmp
memory/1344-23-0x0000000006030000-0x0000000006031000-memory.dmp