Analysis
- max time kernel
123s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
02/11/2022, 14:53
General
- Target e4d759c3be1ffffb65dedc540d319bab.exe
- Size 665KB
- Sample221102-r9a5ashfc8
- SHA256 172bf551662345dcf072f3dd78e9f3bff20183be4d5f31f44e3de8795e856fe5
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5169304639:AAEuGpfCL-hv_A-RdB_r9uRMHt_yvJZb2Z8/
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 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
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 7 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e4d759c3be1ffffb65dedc540d319bab.exe"C:\Users\Admin\AppData\Local\Temp\e4d759c3be1ffffb65dedc540d319bab.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XkZDTwcLUiTx.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XkZDTwcLUiTx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp47E6.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\e4d759c3be1ffffb65dedc540d319bab.exe"C:\Users\Admin\AppData\Local\Temp\e4d759c3be1ffffb65dedc540d319bab.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\e4d759c3be1ffffb65dedc540d319bab.exe"C:\Users\Admin\AppData\Local\Temp\e4d759c3be1ffffb65dedc540d319bab.exe"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 v6
Replay Monitor
Loading Replay Monitor...
Downloads
e4d759c3be1ffffb65dedc540d319bab.exe.log
tmp47E6.tmp
memory/1728-144-0x0000000000400000-0x000000000043C000-memory.dmp
memory/1728-160-0x0000000006D00000-0x0000000006D50000-memory.dmp
memory/3444-133-0x00000000051F0000-0x0000000005794000-memory.dmp
memory/3444-134-0x0000000004CE0000-0x0000000004D72000-memory.dmp
memory/3444-135-0x0000000004F90000-0x0000000004F9A000-memory.dmp
memory/3444-136-0x0000000007900000-0x000000000799C000-memory.dmp
memory/3444-132-0x00000000003A0000-0x000000000044C000-memory.dmp
memory/4224-146-0x0000000005B80000-0x0000000005BA2000-memory.dmp
memory/4224-153-0x0000000007CF0000-0x000000000836A000-memory.dmp
memory/4224-139-0x0000000004D30000-0x0000000004D66000-memory.dmp
memory/4224-147-0x0000000005C20000-0x0000000005C86000-memory.dmp
memory/4224-148-0x0000000005D00000-0x0000000005D66000-memory.dmp
memory/4224-149-0x0000000006380000-0x000000000639E000-memory.dmp
memory/4224-150-0x0000000007540000-0x0000000007572000-memory.dmp
memory/4224-151-0x00000000708B0000-0x00000000708FC000-memory.dmp
memory/4224-152-0x0000000006940000-0x000000000695E000-memory.dmp
memory/4224-142-0x00000000053F0000-0x0000000005A18000-memory.dmp
memory/4224-154-0x00000000076A0000-0x00000000076BA000-memory.dmp
memory/4224-155-0x0000000007710000-0x000000000771A000-memory.dmp
memory/4224-156-0x0000000007920000-0x00000000079B6000-memory.dmp
memory/4224-157-0x00000000078D0000-0x00000000078DE000-memory.dmp
memory/4224-158-0x00000000079E0000-0x00000000079FA000-memory.dmp
memory/4224-159-0x00000000079C0000-0x00000000079C8000-memory.dmp