amadey | 4badc4f87e22b0474631da39a0b6b13672decf3d34e0598f98aec04262e1be8c

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	GHIJJEGDBF.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorti.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 8 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	GHIJJEGDBF.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	GHIJJEGDBF.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorti.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorti.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3642458265-1901903390-453309326-1000\Control Panel\International\Geo\Nation	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3642458265-1901903390-453309326-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3642458265-1901903390-453309326-1000\Control Panel\International\Geo\Nation	GHIJJEGDBF.exe

Executes dropped EXE 4 IoCs

pid	Process
3420	GHIJJEGDBF.exe
4824	explorti.exe
2376	explorti.exe
1568	explorti.exe

Identifies Wine through registry keys 2 TTPs 4 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3642458265-1901903390-453309326-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-3642458265-1901903390-453309326-1000\Software\Wine	GHIJJEGDBF.exe
Key opened	\REGISTRY\USER\S-1-5-21-3642458265-1901903390-453309326-1000\Software\Wine	explorti.exe
Key opened	\REGISTRY\USER\S-1-5-21-3642458265-1901903390-453309326-1000\Software\Wine	explorti.exe

Loads dropped DLL 2 IoCs

pid	Process
2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs

pid	Process
2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
3420	GHIJJEGDBF.exe
4824	explorti.exe
2376	explorti.exe
1568	explorti.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorti.job	GHIJJEGDBF.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
3420	GHIJJEGDBF.exe
3420	GHIJJEGDBF.exe
4824	explorti.exe
4824	explorti.exe
2376	explorti.exe
2376	explorti.exe
1568	explorti.exe
1568	explorti.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3420	GHIJJEGDBF.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
1624	cmd.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 1436	2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe	85
PID 2936 wrote to memory of 1436	2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe	85
PID 2936 wrote to memory of 1436	2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe	85
PID 2936 wrote to memory of 1624	2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe	87
PID 2936 wrote to memory of 1624	2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe	87
PID 2936 wrote to memory of 1624	2936	9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe	87
PID 1436 wrote to memory of 3420	1436	cmd.exe	89
PID 1436 wrote to memory of 3420	1436	cmd.exe	89
PID 1436 wrote to memory of 3420	1436	cmd.exe	89
PID 3420 wrote to memory of 4824	3420	GHIJJEGDBF.exe	90
PID 3420 wrote to memory of 4824	3420	GHIJJEGDBF.exe	90
PID 3420 wrote to memory of 4824	3420	GHIJJEGDBF.exe	90

C:\Users\Admin\AppData\Local\Temp\9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe
"C:\Users\Admin\AppData\Local\Temp\9bcd9e7b8d3962b9c7e916adbf6a3607d5896fa4ddbfa93f66d2936c7bf4028a.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\GHIJJEGDBF.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1436
- - C:\Users\Admin\AppData\Local\Temp\GHIJJEGDBF.exe
    "C:\Users\Admin\AppData\Local\Temp\GHIJJEGDBF.exe"
    3⤵
    - Identifies VirtualBox via ACPI registry values (likely anti-VM)
    - Checks BIOS information in registry
    - Checks computer location settings
    - Executes dropped EXE
    - Identifies Wine through registry keys
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:3420
  - - C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
      "C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"
      4⤵
      Identifies VirtualBox via ACPI registry values (likely anti-VM)
      Checks BIOS information in registry
      Executes dropped EXE
      Identifies Wine through registry keys
      Suspicious use of NtSetInformationThreadHideFromDebugger
      Suspicious behavior: EnumeratesProcesses
      PID:4824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\HDBGDHDAEC.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetWindowsHookEx
  PID:1624

C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2376

C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion