Analysis
- max time kernel
91s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
02/11/2022, 10:11
General
- Target ESY510942.exe
- Size 279KB
- Sample221102-l7xydsbgam
- SHA256 dfaf97d53abf5a5beb3f87f6a427a0329d4916495de13c605c2dbd7084a7cafe
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 SetWindowsHookEx 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\ESY510942.exe"C:\Users\Admin\AppData\Local\Temp\ESY510942.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\lalpc.exe"C:\Users\Admin\AppData\Local\Temp\lalpc.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\lalpc.exe"C:\Users\Admin\AppData\Local\Temp\lalpc.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
cdjhdvmaks.jfn
lalpc.exe
lalpc.exe
lalpc.exe
ubgkr.gbv
memory/1952-139-0x0000000004F80000-0x0000000005524000-memory.dmp
memory/1952-140-0x0000000000400000-0x000000000044E000-memory.dmp
memory/1952-141-0x0000000004AF0000-0x0000000004B8C000-memory.dmp
memory/1952-142-0x0000000005A70000-0x0000000005AD6000-memory.dmp
memory/1952-143-0x0000000005CF0000-0x0000000005D40000-memory.dmp
memory/1952-144-0x0000000006320000-0x00000000063B2000-memory.dmp
memory/1952-145-0x0000000006620000-0x000000000662A000-memory.dmp