Analysis
- max time kernel
150s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
03/10/2022, 08:27
General
- Target SecuriteInfo.com.Win32.DropperX-gen.15338.exe
- Size 240KB
- Sample221003-kcemwsgefp
- SHA256 b8df5dd15d2bb8b3201cd4d3de86f6e8f0458a1fcc1939788ba38b99e7a219dc
Malware Config
Extracted
-
agenttesla
-
https://api.telegram.org/bot5573324852:AAHIZ4Q-DwFDzqPmvNO-b6oPMlnlWj8EfMY/sendDocument
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
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.15338.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.15338.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.15338.exeC:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.DropperX-gen.15338.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
SecuriteInfo.com.Win32.DropperX-gen.15338.exe.log
memory/4104-132-0x0000000000A40000-0x0000000000A82000-memory.dmp
memory/4104-133-0x0000000005FE0000-0x0000000006002000-memory.dmp
memory/4296-136-0x00000000057F0000-0x0000000005E18000-memory.dmp
memory/4296-137-0x0000000005770000-0x00000000057D6000-memory.dmp
memory/4296-138-0x0000000005F20000-0x0000000005F86000-memory.dmp
memory/4296-139-0x0000000006680000-0x000000000669E000-memory.dmp
memory/4296-140-0x0000000007EC0000-0x000000000853A000-memory.dmp
memory/4296-141-0x0000000006B70000-0x0000000006B8A000-memory.dmp
memory/4296-135-0x00000000030B0000-0x00000000030E6000-memory.dmp
memory/4356-143-0x0000000000400000-0x000000000043A000-memory.dmp
memory/4356-145-0x0000000005A90000-0x0000000006034000-memory.dmp
memory/4356-146-0x0000000005580000-0x000000000561C000-memory.dmp
memory/4356-147-0x0000000006870000-0x00000000068C0000-memory.dmp
memory/4356-148-0x0000000007080000-0x0000000007112000-memory.dmp
memory/4356-149-0x0000000007040000-0x000000000704A000-memory.dmp