Analysis
- max time kernel
190s - max time network
35s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
- submitted
24/11/2022, 22:27
General
- Target shipping docs.exe
- Size 1.1MB
- Sample221124-2c3hdsda98
- SHA256 df4eed6b429eba0c7fe96cce25b317efe39b46a443574f1d0aa9445da22f0ac2
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5676971476:AAFdGsXW8kwzXNIluAGV-a4sJ2XBy68O9WI/
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- 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 20 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 25 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NbJyVSEVODXHn.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NbJyVSEVODXHn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"C:\Users\Admin\AppData\Local\Temp\shipping docs.exe"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmpEC.tmp
d93f411851d7c929.customDestinations-ms
memory/520-66-0x000000006ED90000-0x000000006F33B000-memory.dmp
memory/520-82-0x000000006ED90000-0x000000006F33B000-memory.dmp
memory/860-72-0x0000000000400000-0x000000000043C000-memory.dmp
memory/860-79-0x0000000000400000-0x000000000043C000-memory.dmp
memory/860-77-0x0000000000400000-0x000000000043C000-memory.dmp
memory/860-74-0x0000000000400000-0x000000000043C000-memory.dmp
memory/860-73-0x0000000000400000-0x000000000043C000-memory.dmp
memory/860-70-0x0000000000400000-0x000000000043C000-memory.dmp
memory/860-69-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1268-68-0x0000000008450000-0x00000000084C8000-memory.dmp
memory/1268-54-0x0000000000DA0000-0x0000000000EBE000-memory.dmp
memory/1268-55-0x0000000074E01000-0x0000000074E03000-memory.dmp
memory/1268-57-0x0000000000480000-0x000000000048C000-memory.dmp
memory/1268-56-0x0000000000630000-0x0000000000648000-memory.dmp
memory/1268-58-0x0000000007D50000-0x0000000007DFE000-memory.dmp
memory/1756-67-0x000000006ED90000-0x000000006F33B000-memory.dmp
memory/1756-81-0x000000006ED90000-0x000000006F33B000-memory.dmp