Analysis
- max time kernel
135s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230221-en - resource tags
- submitted
04/05/2023, 08:34
General
- Target No.13234290.scr.exe
- Size 724KB
- Sample230504-kgf2hsba57
- SHA256 26ec84d86c07a621e86269544e8e4018d40bfe4c19a3ced4ee3749155bc4acc8
Malware Config
Extracted
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
08069270459ugo
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.yandex.com
-
Port
587
-
Username
-
Password
08069270459ugo
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.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\No.13234290.scr.exe"C:\Users\Admin\AppData\Local\Temp\No.13234290.scr.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\No.13234290.scr.exe"C:\Users\Admin\AppData\Local\Temp\No.13234290.scr.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 v6
Replay Monitor
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Downloads
No.13234290.scr.exe.log
memory/3852-140-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3852-150-0x00000000054F0000-0x0000000005500000-memory.dmp
memory/3852-149-0x0000000006F80000-0x0000000006F8A000-memory.dmp
memory/3852-145-0x0000000006E40000-0x0000000006E90000-memory.dmp
memory/3852-144-0x00000000060D0000-0x0000000006136000-memory.dmp
memory/3852-143-0x00000000054F0000-0x0000000005500000-memory.dmp
memory/3980-136-0x0000000005C30000-0x0000000005CC2000-memory.dmp
memory/3980-139-0x0000000005A30000-0x0000000005A40000-memory.dmp
memory/3980-138-0x0000000009B30000-0x0000000009BCC000-memory.dmp
memory/3980-137-0x0000000005A30000-0x0000000005A40000-memory.dmp
memory/3980-133-0x0000000000FF0000-0x00000000010AA000-memory.dmp
memory/3980-135-0x0000000006130000-0x00000000066D4000-memory.dmp
memory/3980-134-0x0000000005A30000-0x0000000005A40000-memory.dmp