Analysis
- max time kernel
90s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
20/09/2022, 09:00
General
- Target SecuriteInfo.com.W32.Injector.FIHC-3037.22773.exe
- Size 105KB
- Sample220920-kybhcsgahn
- SHA256 7e7e4ddcd61df737e689389da1b59df402521f3310ad402c0696b97cf6ce3a20
Malware Config
Extracted
-
Protocol
ftp
-
Host
ftp.overviewsupplies.com
-
Port
21
-
Username
-
Password
w[3c2r?B,Of+
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.overviewsupplies.com/
-
Port
21
-
Username
-
Password
w[3c2r?B,Of+
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Loads dropped DLL 1 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 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 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Injector.FIHC-3037.22773.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Injector.FIHC-3037.22773.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v2.0.50727\caspol.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Injector.FIHC-3037.22773.exe"2⤵
- Checks QEMU agent file
- Accesses Microsoft Outlook profiles
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- 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
System.dll
memory/924-142-0x00007FF8EE470000-0x00007FF8EE665000-memory.dmp
memory/924-143-0x0000000077130000-0x00000000772D3000-memory.dmp
memory/924-152-0x00000000727E0000-0x0000000072D91000-memory.dmp
memory/924-151-0x0000000077130000-0x00000000772D3000-memory.dmp
memory/924-139-0x0000000000D70000-0x0000000000E70000-memory.dmp
memory/924-150-0x00007FF8EE470000-0x00007FF8EE665000-memory.dmp
memory/924-148-0x00000000727E0000-0x0000000072D91000-memory.dmp
memory/924-147-0x0000000000400000-0x000000000043A000-memory.dmp
memory/924-141-0x0000000000D70000-0x0000000000E70000-memory.dmp
memory/924-145-0x0000000000401000-0x000000000062B000-memory.dmp
memory/924-144-0x0000000000400000-0x000000000062B000-memory.dmp
memory/3972-136-0x0000000077130000-0x00000000772D3000-memory.dmp
memory/3972-134-0x0000000004C40000-0x0000000004D40000-memory.dmp
memory/3972-140-0x0000000077130000-0x00000000772D3000-memory.dmp
memory/3972-149-0x0000000004C40000-0x0000000004D40000-memory.dmp
memory/3972-138-0x0000000077130000-0x00000000772D3000-memory.dmp
memory/3972-133-0x0000000004C40000-0x0000000004D40000-memory.dmp
memory/3972-135-0x00007FF8EE470000-0x00007FF8EE665000-memory.dmp