Analysis
- max time kernel
151s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20230831-en - resource tags
- submitted
07/09/2023, 09:56
General
- Target SecuriteInfo.com.Win32.PWSX-gen.25815.11108.exe
- Size 607KB
- Sample230907-lycwvsge3w
- SHA256 0ebdabe6c28a3f019e3dec1cd4f8fe1aeb40adc099c33d984b7291d15cd3725e
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.telefoonreparatiebovenkarspel.nl
-
Port
587
-
Username
-
Password
Madarjan007!
-
Email to
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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.25815.11108.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.25815.11108.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.25815.11108.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.25815.11108.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 v15
Replay Monitor
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Downloads
memory/2992-16-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2992-24-0x0000000005080000-0x0000000005090000-memory.dmp
memory/2992-23-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/2992-22-0x00000000068D0000-0x0000000006920000-memory.dmp
memory/2992-20-0x0000000005240000-0x00000000052A6000-memory.dmp
memory/2992-19-0x0000000005080000-0x0000000005090000-memory.dmp
memory/2992-18-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/4156-11-0x0000000004C80000-0x0000000004C90000-memory.dmp
memory/4156-15-0x00000000081E0000-0x000000000827C000-memory.dmp
memory/4156-14-0x0000000004C80000-0x0000000004C90000-memory.dmp
memory/4156-13-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/4156-12-0x0000000004C90000-0x0000000004C9A000-memory.dmp
memory/4156-1-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/4156-21-0x0000000074C90000-0x0000000075440000-memory.dmp
memory/4156-10-0x0000000004CB0000-0x0000000004D42000-memory.dmp
memory/4156-9-0x00000000051C0000-0x0000000005764000-memory.dmp
memory/4156-8-0x0000000000220000-0x00000000002BC000-memory.dmp