Analysis
- max time kernel
135s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
26/01/2023, 08:08
General
- Target Bank Details_pdf.exe
- Size 935KB
- Sample230126-j1j2vaee3t
- SHA256 031e9d43bb362aef89deff7c9fbc4d0cf3c4ed7f7eb8869c402a0a0f803feb08
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\Bank Details_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Bank Details_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\Bank Details_pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\Bank Details_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Bank Details_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
Bank Details_pdf.exe.log
memory/1216-157-0x00000000061A0000-0x00000000061F0000-memory.dmp
memory/1216-142-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3588-150-0x0000000007500000-0x0000000007B7A000-memory.dmp
memory/3588-152-0x0000000006F10000-0x0000000006F1A000-memory.dmp
memory/3588-156-0x00000000071C0000-0x00000000071C8000-memory.dmp
memory/3588-139-0x00000000045E0000-0x0000000004616000-memory.dmp
memory/3588-140-0x0000000004CA0000-0x00000000052C8000-memory.dmp
memory/3588-155-0x00000000071E0000-0x00000000071FA000-memory.dmp
memory/3588-154-0x00000000070D0000-0x00000000070DE000-memory.dmp
memory/3588-153-0x0000000007120000-0x00000000071B6000-memory.dmp
memory/3588-144-0x0000000004BC0000-0x0000000004BE2000-memory.dmp
memory/3588-145-0x00000000053D0000-0x0000000005436000-memory.dmp
memory/3588-146-0x0000000005BA0000-0x0000000005BBE000-memory.dmp
memory/3588-147-0x0000000006B90000-0x0000000006BC2000-memory.dmp
memory/3588-148-0x0000000070600000-0x000000007064C000-memory.dmp
memory/3588-149-0x00000000060C0000-0x00000000060DE000-memory.dmp
memory/3588-151-0x0000000006EA0000-0x0000000006EBA000-memory.dmp
memory/4908-132-0x0000000000C00000-0x0000000000CF0000-memory.dmp
memory/4908-134-0x0000000005670000-0x0000000005702000-memory.dmp
memory/4908-135-0x0000000005720000-0x000000000572A000-memory.dmp
memory/4908-136-0x00000000062E0000-0x000000000637C000-memory.dmp
memory/4908-138-0x0000000006710000-0x0000000006776000-memory.dmp
memory/4908-133-0x0000000005D30000-0x00000000062D4000-memory.dmp