Analysis
- max time kernel
116s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
03/04/2024, 18:56
General
- Target Scan0020.exe
- Size 638KB
- Sample240403-xlhr5aaa78
- SHA256 f88b736fe32b6e458ce63fb67b8bf0ebf6388e6e35e23bf9bcb46893375115f1
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
us2.smtp.mailhostbox.com
-
Port
587
-
Username
-
Password
e)cnIdR1
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla payload 1 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Scan0020.exe"C:\Users\Admin\AppData\Local\Temp\Scan0020.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\bsDYPzuh" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB98C.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\Scan0020.exe"C:\Users\Admin\AppData\Local\Temp\Scan0020.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Scan0020.exe.log
memory/4980-10-0x00000000060C0000-0x000000000615C000-memory.dmp
memory/4980-21-0x0000000075280000-0x0000000075A30000-memory.dmp
memory/4980-3-0x0000000004CE0000-0x0000000004D72000-memory.dmp
memory/4980-4-0x0000000002690000-0x00000000026A0000-memory.dmp
memory/4980-5-0x0000000004C70000-0x0000000004C7A000-memory.dmp
memory/4980-6-0x0000000004CC0000-0x0000000004CDC000-memory.dmp
memory/4980-7-0x00000000051B0000-0x00000000051C8000-memory.dmp
memory/4980-8-0x0000000075280000-0x0000000075A30000-memory.dmp
memory/4980-9-0x0000000002690000-0x00000000026A0000-memory.dmp
memory/4980-0-0x0000000075280000-0x0000000075A30000-memory.dmp
memory/4980-2-0x00000000051F0000-0x0000000005794000-memory.dmp
memory/4980-1-0x00000000001B0000-0x0000000000256000-memory.dmp
memory/4980-11-0x0000000006190000-0x0000000006204000-memory.dmp
memory/5036-17-0x0000000000400000-0x000000000043C000-memory.dmp
memory/5036-20-0x0000000075280000-0x0000000075A30000-memory.dmp
memory/5036-22-0x0000000005570000-0x0000000005580000-memory.dmp
memory/5036-23-0x0000000005850000-0x0000000005868000-memory.dmp
memory/5036-24-0x00000000064F0000-0x0000000006556000-memory.dmp
memory/5036-25-0x0000000075280000-0x0000000075A30000-memory.dmp
memory/5036-26-0x0000000005570000-0x0000000005580000-memory.dmp
memory/5036-27-0x0000000006660000-0x00000000066B0000-memory.dmp