Analysis
- max time kernel
129s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
30/01/2023, 08:34
General
- Target Shipping Documents_pdf.exe
- Size 764KB
- Sample230130-kgfqrabd21
- SHA256 196135e36e7b2a6c13b68f0e22bbebbf93f9b4925911adaa72d775629d74dfcf
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\Shipping Documents_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Shipping Documents_pdf.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\Shipping Documents_pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\Shipping Documents_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Shipping Documents_pdf.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/1240-156-0x0000000006160000-0x00000000061B0000-memory.dmp
memory/1240-142-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4452-150-0x0000000006E10000-0x0000000006E2A000-memory.dmp
memory/4452-151-0x0000000006E80000-0x0000000006E8A000-memory.dmp
memory/4452-155-0x0000000007130000-0x0000000007138000-memory.dmp
memory/4452-139-0x0000000000CE0000-0x0000000000D16000-memory.dmp
memory/4452-154-0x0000000007150000-0x000000000716A000-memory.dmp
memory/4452-153-0x0000000007040000-0x000000000704E000-memory.dmp
memory/4452-141-0x0000000004CF0000-0x0000000005318000-memory.dmp
memory/4452-143-0x0000000004AC0000-0x0000000004AE2000-memory.dmp
memory/4452-144-0x00000000053C0000-0x0000000005426000-memory.dmp
memory/4452-145-0x0000000005B00000-0x0000000005B1E000-memory.dmp
memory/4452-146-0x00000000060E0000-0x0000000006112000-memory.dmp
memory/4452-147-0x0000000071790000-0x00000000717DC000-memory.dmp
memory/4452-148-0x00000000060C0000-0x00000000060DE000-memory.dmp
memory/4452-149-0x0000000007450000-0x0000000007ACA000-memory.dmp
memory/4452-152-0x0000000007090000-0x0000000007126000-memory.dmp
memory/4728-136-0x0000000008E60000-0x0000000008EFC000-memory.dmp
memory/4728-132-0x0000000000870000-0x0000000000936000-memory.dmp
memory/4728-134-0x0000000005360000-0x00000000053F2000-memory.dmp
memory/4728-135-0x00000000052E0000-0x00000000052EA000-memory.dmp
memory/4728-138-0x0000000009240000-0x00000000092A6000-memory.dmp
memory/4728-133-0x0000000005910000-0x0000000005EB4000-memory.dmp