Analysis
- max time kernel
117s - max time network
120s - platform
windows7_x64 - resource
win7-20230831-en - resource tags
- submitted
22/09/2023, 14:55
General
- Target DOC73287284262.bat.exe
- Size 527KB
- Sample230922-saffeaaf74
- SHA256 48e030cc0ca1af0e027949d1f16b86226e352065d9bf5eba4ca7719efe61b0cf
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.ru
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Port
587
-
Username
-
Password
Chibuonyenze8888
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DOC73287284262.bat.exe"C:\Users\Admin\AppData\Local\Temp\DOC73287284262.bat.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DaumicSuB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp56D7.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\DOC73287284262.bat.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
tmp56D7.tmp
memory/2296-0-0x0000000074960000-0x000000007504E000-memory.dmp
memory/2296-1-0x0000000000E60000-0x0000000000EEA000-memory.dmp
memory/2296-2-0x0000000004EB0000-0x0000000004EF0000-memory.dmp
memory/2296-3-0x0000000000440000-0x000000000044C000-memory.dmp
memory/2296-4-0x0000000074960000-0x000000007504E000-memory.dmp
memory/2296-5-0x0000000004EB0000-0x0000000004EF0000-memory.dmp
memory/2296-6-0x0000000004E30000-0x0000000004EAC000-memory.dmp
memory/2296-7-0x00000000042F0000-0x0000000004332000-memory.dmp
memory/2296-25-0x0000000074960000-0x000000007504E000-memory.dmp
memory/2448-12-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2448-13-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2448-19-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2448-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2448-15-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2448-21-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2448-23-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2448-24-0x0000000074960000-0x000000007504E000-memory.dmp
memory/2448-26-0x0000000004CE0000-0x0000000004D20000-memory.dmp
memory/2448-11-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2448-27-0x0000000074960000-0x000000007504E000-memory.dmp