Analysis
- max time kernel
131s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
13/01/2023, 07:28
General
- Target SecuriteInfo.com.Win32.PWSX-gen.11850.13189.exe
- Size 1006KB
- Sample230113-janmcaah8v
- SHA256 3d64b3a9e1b1e570d0fa0352a34477fb030a900072f862d35f98c8af6eb40487
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.huiijingco.com
-
Port
587
-
Username
-
Password
lNLUrZT2
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla payload 1 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- 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
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- 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 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\SecuriteInfo.com.Win32.PWSX-gen.11850.13189.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.11850.13189.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.11850.13189.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.11850.13189.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.11850.13189.exe"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
Loading Replay Monitor...
Downloads
memory/3648-156-0x0000000005E70000-0x0000000005EC0000-memory.dmp
memory/3648-142-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3676-150-0x0000000006D10000-0x0000000006D2A000-memory.dmp
memory/3676-151-0x0000000006D80000-0x0000000006D8A000-memory.dmp
memory/3676-155-0x0000000007030000-0x0000000007038000-memory.dmp
memory/3676-139-0x00000000020E0000-0x0000000002116000-memory.dmp
memory/3676-140-0x0000000004D00000-0x0000000005328000-memory.dmp
memory/3676-154-0x0000000007050000-0x000000000706A000-memory.dmp
memory/3676-153-0x0000000006F40000-0x0000000006F4E000-memory.dmp
memory/3676-144-0x0000000004C00000-0x0000000004C66000-memory.dmp
memory/3676-143-0x0000000004A60000-0x0000000004A82000-memory.dmp
memory/3676-145-0x0000000005A20000-0x0000000005A3E000-memory.dmp
memory/3676-146-0x0000000005FE0000-0x0000000006012000-memory.dmp
memory/3676-147-0x0000000070CF0000-0x0000000070D3C000-memory.dmp
memory/3676-148-0x0000000005FC0000-0x0000000005FDE000-memory.dmp
memory/3676-149-0x0000000007360000-0x00000000079DA000-memory.dmp
memory/3676-152-0x0000000006F90000-0x0000000007026000-memory.dmp
memory/4700-136-0x0000000008690000-0x000000000872C000-memory.dmp
memory/4700-132-0x0000000000050000-0x0000000000152000-memory.dmp
memory/4700-134-0x0000000004B90000-0x0000000004C22000-memory.dmp
memory/4700-135-0x0000000004AF0000-0x0000000004AFA000-memory.dmp
memory/4700-138-0x0000000009110000-0x0000000009176000-memory.dmp
memory/4700-133-0x0000000005140000-0x00000000056E4000-memory.dmp