Analysis
- max time kernel
119s - max time network
120s - platform
windows10_x64 - resource
win10 - submitted
13/10/2020, 17:49
General
- Target Returned message contents.pdf.exe
- Size 909KB
- Sample201013-5pq74aps4a
- SHA256 e5171bb49c254789fa2528ab19a09aeeae8869148da7d3a539da9f6a75ff7b85
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.northwestpowdercoating.co.uk
-
Port
587
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Username
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Password
C^0z.^LxykTW
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 8 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Returned message contents.pdf.exe"C:\Users\Admin\AppData\Local\Temp\Returned message contents.pdf.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\tbPdptBihWl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp28E5.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Returned message contents.pdf.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\Returned message contents.pdf.exe"{path}"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/792-9-0x000000000AD70000-0x000000000ADD9000-memory.dmp
memory/792-0-0x0000000073450000-0x0000000073B3E000-memory.dmp
memory/792-4-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
memory/792-5-0x0000000002B00000-0x0000000002B01000-memory.dmp
memory/792-6-0x00000000052A0000-0x00000000052A4000-memory.dmp
memory/792-7-0x00000000074F0000-0x00000000074F1000-memory.dmp
memory/792-3-0x0000000005690000-0x0000000005691000-memory.dmp
memory/792-1-0x0000000000610000-0x0000000000611000-memory.dmp
memory/792-8-0x0000000007450000-0x00000000074BA000-memory.dmp
memory/2036-12-0x0000000000400000-0x0000000000436000-memory.dmp
memory/2036-14-0x0000000073450000-0x0000000073B3E000-memory.dmp
memory/2036-19-0x00000000054A0000-0x00000000054A1000-memory.dmp
memory/2036-20-0x0000000005C70000-0x0000000005C71000-memory.dmp