Analysis
- max time kernel
145s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
13/01/2023, 14:08
General
- Target PURCHASE ORDER.exe
- Size 434KB
- Sample230113-rfj54sdb6x
- SHA256 87e32aa4c7cdad4872573c0d62e51e9256d1c774dbdebd2cb2e706734aa69e1f
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Executes dropped EXE 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 7 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ochfhrpklc.exe"C:\Users\Admin\AppData\Local\Temp\ochfhrpklc.exe" C:\Users\Admin\AppData\Local\Temp\ntiydcsvzue.u2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ochfhrpklc.exe"C:\Users\Admin\AppData\Local\Temp\ochfhrpklc.exe"3⤵
- Executes dropped EXE
- 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
kkajibsa.ac
ntiydcsvzue.u
ochfhrpklc.exe
ochfhrpklc.exe
ochfhrpklc.exe
memory/4180-139-0x0000000004AF0000-0x0000000005094000-memory.dmp
memory/4180-140-0x0000000000400000-0x000000000043F000-memory.dmp
memory/4180-141-0x00000000049C0000-0x0000000004A5C000-memory.dmp
memory/4180-142-0x0000000005930000-0x0000000005996000-memory.dmp
memory/4180-143-0x0000000005CD0000-0x0000000005D62000-memory.dmp
memory/4180-144-0x0000000005D70000-0x0000000005D7A000-memory.dmp
memory/4180-145-0x0000000006160000-0x00000000061B0000-memory.dmp