Analysis
- max time kernel
137s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
02/11/2022, 05:00
General
- Target SecuriteInfo.com.Win32.PWSX-gen.4460.29629.exe
- Size 665KB
- Sample221102-fm2g7aabdr
- SHA256 add9c8baf898a95f7fda191fc281bbd09f36d8548fec2169d53e1998a6baca48
Malware Config
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
- 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 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 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4460.29629.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4460.29629.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JwlPDKBegRw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2710.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4460.29629.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.4460.29629.exe"{path}"2⤵
- 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.PWSX-gen.4460.29629.exe.log
tmp2710.tmp
memory/4640-141-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4640-143-0x0000000005F70000-0x0000000005FD6000-memory.dmp
memory/4640-144-0x0000000006A30000-0x0000000006A80000-memory.dmp
memory/5080-136-0x0000000004A90000-0x0000000004A9A000-memory.dmp
memory/5080-135-0x0000000004B60000-0x0000000004BFC000-memory.dmp
memory/5080-134-0x0000000004AC0000-0x0000000004B52000-memory.dmp
memory/5080-132-0x0000000000060000-0x000000000010C000-memory.dmp
memory/5080-133-0x0000000004FD0000-0x0000000005574000-memory.dmp