Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
12/11/2024, 02:20
General
- Target 4ad4bb99aa68ac6d5828c71c3f3d5d2983ead0626fd77aba7bb98de727a4b90b.exe
- Size 1.1MB
- Sample241112-csezlasfja
- SHA256 4ad4bb99aa68ac6d5828c71c3f3d5d2983ead0626fd77aba7bb98de727a4b90b
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.showpiece.trillennium.biz
-
Port
587
-
Username
-
Password
3KJ[T.3]fsSW
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- Loads dropped DLL 1 IoCs
- 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 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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 NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4ad4bb99aa68ac6d5828c71c3f3d5d2983ead0626fd77aba7bb98de727a4b90b.exe"C:\Users\Admin\AppData\Local\Temp\4ad4bb99aa68ac6d5828c71c3f3d5d2983ead0626fd77aba7bb98de727a4b90b.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\4ad4bb99aa68ac6d5828c71c3f3d5d2983ead0626fd77aba7bb98de727a4b90b.exe"C:\Users\Admin\AppData\Local\Temp\4ad4bb99aa68ac6d5828c71c3f3d5d2983ead0626fd77aba7bb98de727a4b90b.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/4024-15-0x0000000077A81000-0x0000000077BA1000-memory.dmp
memory/4024-16-0x0000000077A81000-0x0000000077BA1000-memory.dmp
memory/4024-17-0x00000000746D5000-0x00000000746D6000-memory.dmp
memory/4876-18-0x0000000077B08000-0x0000000077B09000-memory.dmp
memory/4876-19-0x0000000077B25000-0x0000000077B26000-memory.dmp
memory/4876-32-0x0000000000820000-0x0000000001A74000-memory.dmp
memory/4876-33-0x0000000000820000-0x0000000001A74000-memory.dmp
memory/4876-34-0x0000000077A81000-0x0000000077BA1000-memory.dmp
memory/4876-35-0x000000007297E000-0x000000007297F000-memory.dmp
memory/4876-36-0x0000000000820000-0x0000000000860000-memory.dmp
memory/4876-37-0x000000003A880000-0x000000003AE24000-memory.dmp
memory/4876-38-0x000000003A750000-0x000000003A7B6000-memory.dmp
memory/4876-39-0x0000000072970000-0x0000000073120000-memory.dmp
memory/4876-40-0x000000003B490000-0x000000003B4E0000-memory.dmp
memory/4876-41-0x000000003B4E0000-0x000000003B572000-memory.dmp
memory/4876-42-0x000000003B740000-0x000000003B74A000-memory.dmp
memory/4876-44-0x000000007297E000-0x000000007297F000-memory.dmp
memory/4876-45-0x0000000072970000-0x0000000073120000-memory.dmp