Analysis
- max time kernel
89s - max time network
82s - platform
windows7_x64 - resource
win7-20220812-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
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agenttesla
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Protocol
smtp
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Host
smtp.yandex.ru
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Port
587
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Username
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Password
brillium12345
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
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 25 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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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⤵
- 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\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\tmp9BB4.tmp"2⤵
- Creates scheduled task(s)
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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⤵
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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⤵
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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
tmp9BB4.tmp
memory/1196-61-0x00000000002D0000-0x00000000002DA000-memory.dmp
memory/1196-81-0x00000000002D0000-0x00000000002DA000-memory.dmp
memory/1196-58-0x00000000002D0000-0x00000000002DA000-memory.dmp
memory/1196-57-0x00000000002D0000-0x00000000002DA000-memory.dmp
memory/1196-59-0x0000000004CE5000-0x0000000004CF6000-memory.dmp
memory/1196-54-0x0000000000190000-0x0000000000266000-memory.dmp
memory/1196-60-0x00000000002D0000-0x00000000002DA000-memory.dmp
memory/1196-62-0x0000000000330000-0x000000000033E000-memory.dmp
memory/1196-63-0x0000000005710000-0x00000000057B2000-memory.dmp
memory/1196-82-0x0000000004CE5000-0x0000000004CF6000-memory.dmp
memory/1196-68-0x0000000005A00000-0x0000000005A6A000-memory.dmp
memory/1196-55-0x0000000075D01000-0x0000000075D03000-memory.dmp
memory/1196-56-0x00000000002E0000-0x00000000002F2000-memory.dmp
memory/1744-83-0x000000006D180000-0x000000006D72B000-memory.dmp
memory/1744-84-0x000000006D180000-0x000000006D72B000-memory.dmp
memory/2004-70-0x0000000000400000-0x000000000042E000-memory.dmp
memory/2004-72-0x0000000000400000-0x000000000042E000-memory.dmp
memory/2004-73-0x0000000000400000-0x000000000042E000-memory.dmp
memory/2004-74-0x0000000000400000-0x000000000042E000-memory.dmp
memory/2004-77-0x0000000000400000-0x000000000042E000-memory.dmp
memory/2004-79-0x0000000000400000-0x000000000042E000-memory.dmp
memory/2004-69-0x0000000000400000-0x000000000042E000-memory.dmp