Analysis
- max time kernel
153s - max time network
159s - platform
windows10-2004_x64 - resource
win10v2004-20230915-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
-
Port
587
-
Username
-
Password
Chibuonyenze8888
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 11 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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DaumicSuB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC32C.tmp"2⤵
- Creates scheduled task(s)
-
-
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
DOC73287284262.bat.exe.log
tmpC32C.tmp
memory/624-5-0x00000000052F0000-0x0000000005300000-memory.dmp
memory/624-2-0x0000000004FF0000-0x000000000508C000-memory.dmp
memory/624-4-0x0000000005090000-0x0000000005122000-memory.dmp
memory/624-1-0x0000000074970000-0x0000000075120000-memory.dmp
memory/624-6-0x0000000005190000-0x000000000519A000-memory.dmp
memory/624-7-0x0000000005200000-0x0000000005256000-memory.dmp
memory/624-8-0x00000000063A0000-0x00000000063AC000-memory.dmp
memory/624-9-0x0000000074970000-0x0000000075120000-memory.dmp
memory/624-10-0x00000000052F0000-0x0000000005300000-memory.dmp
memory/624-11-0x0000000006530000-0x00000000065AC000-memory.dmp
memory/624-12-0x00000000063C0000-0x0000000006402000-memory.dmp
memory/624-3-0x0000000005640000-0x0000000005BE4000-memory.dmp
memory/624-19-0x0000000074970000-0x0000000075120000-memory.dmp
memory/624-0-0x0000000000660000-0x00000000006EA000-memory.dmp
memory/944-16-0x0000000000400000-0x0000000000442000-memory.dmp
memory/944-20-0x0000000074970000-0x0000000075120000-memory.dmp
memory/944-21-0x0000000005280000-0x0000000005290000-memory.dmp
memory/944-22-0x0000000005290000-0x00000000052F6000-memory.dmp
memory/944-23-0x0000000006070000-0x00000000060C0000-memory.dmp
memory/944-24-0x0000000074970000-0x0000000075120000-memory.dmp
memory/944-25-0x0000000005280000-0x0000000005290000-memory.dmp