Analysis
- max time kernel
130s - max time network
121s - platform
windows10_x64 - resource
win10v20201028 - submitted
18/12/2020, 14:37
General
- Target DHL.SHIPPMENT.DETAILS.2020.PDF.exe
- Size 750KB
- Sample201218-f5kcht19aj
- SHA256 f8e5afc0bf8d6f78d876f882e7b101759d2a761d992ecc1930e626f56de328ac
Malware Config
Extracted
-
Protocol
smtp
-
Host
web2.changeip.com
-
Port
587
-
Username
-
Password
2*xaR!aKyovu
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
web2.changeip.com
-
Port
587
-
Username
-
Password
2*xaR!aKyovu
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.
- 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 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.SHIPPMENT.DETAILS.2020.PDF.exe"C:\Users\Admin\AppData\Local\Temp\DHL.SHIPPMENT.DETAILS.2020.PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ileQssdiOuqsOo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5BBD.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\DHL.SHIPPMENT.DETAILS.2020.PDF.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3248-13-0x0000000000400000-0x000000000045A000-memory.dmp
memory/3248-22-0x0000000005E20000-0x0000000005E21000-memory.dmp
memory/3248-21-0x0000000005210000-0x0000000005211000-memory.dmp
memory/3248-16-0x0000000073920000-0x000000007400E000-memory.dmp
memory/3976-5-0x0000000007550000-0x0000000007551000-memory.dmp
memory/3976-6-0x0000000007050000-0x0000000007051000-memory.dmp
memory/3976-2-0x0000000073920000-0x000000007400E000-memory.dmp
memory/3976-10-0x0000000009430000-0x0000000009431000-memory.dmp
memory/3976-3-0x00000000001F0000-0x00000000001F1000-memory.dmp
memory/3976-9-0x0000000000B40000-0x0000000000BCF000-memory.dmp
memory/3976-8-0x00000000072B0000-0x00000000072B4000-memory.dmp
memory/3976-7-0x0000000004C30000-0x0000000004C31000-memory.dmp