Analysis
- max time kernel
121s - max time network
123s - platform
windows7_x64 - resource
win7-20240704-en - resource tags
- submitted
09/07/2024, 04:20
General
- Target SecuriteInfo.com.Trojan.MSIL.Crypt.9988.11992.exe
- Size 884KB
- Sample240709-ex384ayane
- SHA256 540496b0cde097cb083d1c501af7b0ed84c5e94922be37700bfa44c2090ecfbc
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.groupmt.vn
-
Port
587
-
Username
-
Password
4j37SF2n8e
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Crypt.9988.11992.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Crypt.9988.11992.exe"1⤵
- Suspicious use of SetThreadContext
- 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\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Crypt.9988.11992.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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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\mjSnCB.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mjSnCB" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE7C0.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Crypt.9988.11992.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.MSIL.Crypt.9988.11992.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
tmpE7C0.tmp
d93f411851d7c929.customDestinations-ms
memory/1952-4-0x0000000000450000-0x0000000000458000-memory.dmp
memory/1952-31-0x0000000074070000-0x000000007475E000-memory.dmp
memory/1952-0-0x000000007407E000-0x000000007407F000-memory.dmp
memory/1952-5-0x0000000000510000-0x000000000051E000-memory.dmp
memory/1952-6-0x00000000021A0000-0x0000000002224000-memory.dmp
memory/1952-2-0x0000000074070000-0x000000007475E000-memory.dmp
memory/1952-1-0x0000000000810000-0x00000000008F0000-memory.dmp
memory/1952-3-0x0000000000300000-0x0000000000312000-memory.dmp
memory/2764-23-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2764-19-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2764-30-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2764-29-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2764-28-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2764-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2764-25-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2764-21-0x0000000000400000-0x0000000000442000-memory.dmp