Analysis
- max time kernel
80s - max time network
104s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
13/12/2022, 16:41
General
- Target SecuriteInfo.com.Win32.RATX-gen.15090.18131.exe
- Size 837KB
- Sample221213-t64csafb67
- SHA256 2244c1910eec55c85a115fa27cfbc558ecbee563441065ba45656b68e3c8cdb9
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.ru
-
Port
587
-
Username
-
Password
brillium12345
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 1 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.15090.18131.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.15090.18131.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\Roaming\FbBewpXRPzlqpI.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\FbBewpXRPzlqpI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1731.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.15090.18131.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.RATX-gen.15090.18131.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
tmp1731.tmp
memory/3360-144-0x0000000005540000-0x00000000055A6000-memory.dmp
memory/3360-152-0x0000000006F80000-0x0000000006F8A000-memory.dmp
memory/3360-156-0x0000000007230000-0x0000000007238000-memory.dmp
memory/3360-137-0x0000000002300000-0x0000000002336000-memory.dmp
memory/3360-146-0x0000000005C00000-0x0000000005C1E000-memory.dmp
memory/3360-141-0x0000000004E10000-0x0000000005438000-memory.dmp
memory/3360-154-0x0000000007140000-0x000000000714E000-memory.dmp
memory/3360-153-0x0000000007190000-0x0000000007226000-memory.dmp
memory/3360-142-0x0000000004C40000-0x0000000004C62000-memory.dmp
memory/3360-145-0x0000000005620000-0x0000000005686000-memory.dmp
memory/3360-147-0x0000000006BA0000-0x0000000006BD2000-memory.dmp
memory/3360-150-0x0000000007550000-0x0000000007BCA000-memory.dmp
memory/3360-155-0x0000000007250000-0x000000000726A000-memory.dmp
memory/3360-151-0x0000000006F10000-0x0000000006F2A000-memory.dmp
memory/3360-148-0x0000000071AE0000-0x0000000071B2C000-memory.dmp
memory/3360-149-0x0000000006140000-0x000000000615E000-memory.dmp
memory/4480-134-0x0000000005D70000-0x0000000005E0C000-memory.dmp
memory/4480-132-0x00000000007B0000-0x0000000000886000-memory.dmp
memory/4480-133-0x0000000005680000-0x0000000005712000-memory.dmp
memory/4824-143-0x00000000052B0000-0x0000000005854000-memory.dmp
memory/4824-140-0x0000000000400000-0x000000000042E000-memory.dmp
memory/4824-157-0x0000000006C90000-0x0000000006C9A000-memory.dmp
memory/4824-158-0x0000000006D10000-0x0000000006D60000-memory.dmp