Analysis
- max time kernel
149s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
05/12/2022, 10:38
General
- Target SecuriteInfo.com.Win32.PWSX-gen.6425.11525.exe
- Size 687KB
- Sample221205-mpdx8sbd87
- SHA256 683021733dec8f81d58cfb993c6049c3f2b361b2bcb18046f02ab3211cf09e33
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.6425.11525.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.6425.11525.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.6425.11525.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.6425.11525.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.6425.11525.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/1628-150-0x0000000006C70000-0x0000000006C8A000-memory.dmp
memory/1628-153-0x0000000007C30000-0x0000000007C3E000-memory.dmp
memory/1628-155-0x0000000007C80000-0x0000000007C88000-memory.dmp
memory/1628-154-0x0000000007CA0000-0x0000000007CBA000-memory.dmp
memory/1628-145-0x0000000005E00000-0x0000000005E1E000-memory.dmp
memory/1628-152-0x0000000007B50000-0x0000000007BE6000-memory.dmp
memory/1628-139-0x0000000005000000-0x0000000005036000-memory.dmp
memory/1628-140-0x00000000057C0000-0x0000000005DE8000-memory.dmp
memory/1628-151-0x0000000007940000-0x000000000794A000-memory.dmp
memory/1628-149-0x0000000007F70000-0x00000000085EA000-memory.dmp
memory/1628-143-0x00000000055F0000-0x0000000005612000-memory.dmp
memory/1628-148-0x0000000006B60000-0x0000000006B7E000-memory.dmp
memory/1628-146-0x0000000006B80000-0x0000000006BB2000-memory.dmp
memory/1628-144-0x0000000005710000-0x0000000005776000-memory.dmp
memory/1628-147-0x0000000070760000-0x00000000707AC000-memory.dmp
memory/4176-142-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4176-156-0x00000000016B0000-0x0000000001700000-memory.dmp
memory/4908-133-0x0000000005430000-0x00000000059D4000-memory.dmp
memory/4908-132-0x00000000003A0000-0x0000000000452000-memory.dmp
memory/4908-138-0x0000000005EE0000-0x0000000005F46000-memory.dmp
memory/4908-136-0x0000000005DD0000-0x0000000005E6C000-memory.dmp
memory/4908-135-0x0000000004DE0000-0x0000000004DEA000-memory.dmp
memory/4908-134-0x0000000004E80000-0x0000000004F12000-memory.dmp