92a65702c5459eb17d64e89027aed58452d5c2af82b4263416d8d1d0c9707bc7

Virtualization/Sandbox Evasion

T1497

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

Checks BIOS information in registry 2 TTPs 4 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\VideoBiosVersion	SecretTweak.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	SecretTweak.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	SecretTweak.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	SecretTweak.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation	SecretTweak.exe
Key value queried	\REGISTRY\USER\S-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation	SecretTweak.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

defense_evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SecretTweak.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	SecretTweak.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs

defense_evasion

Debugger Evasion

T1622

pid	Process
2836	SecretTweak.exe
3472	SecretTweak.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 6 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
2324	cmd.exe
4476	cmd.exe
1440	cmd.exe
912	cmd.exe
2236	cmd.exe
1112	cmd.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
4164	schtasks.exe
5012	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2836	SecretTweak.exe
2836	SecretTweak.exe
3472	SecretTweak.exe
3472	SecretTweak.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2836	SecretTweak.exe
Token: 33	2836	SecretTweak.exe
Token: SeIncBasePriorityPrivilege	2836	SecretTweak.exe
Token: SeDebugPrivilege	3472	SecretTweak.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2836	SecretTweak.exe
2836	SecretTweak.exe
2836	SecretTweak.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2836	SecretTweak.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 1440	2836	SecretTweak.exe	97
PID 1440 wrote to memory of 624	1440	cmd.exe	99
PID 2836 wrote to memory of 912	2836	SecretTweak.exe	101
PID 912 wrote to memory of 4164	912	cmd.exe	103
PID 2836 wrote to memory of 2236	2836	SecretTweak.exe	106
PID 2236 wrote to memory of 5056	2236	cmd.exe	108
PID 3472 wrote to memory of 1112	3472	SecretTweak.exe	112
PID 1112 wrote to memory of 908	1112	cmd.exe	114
PID 3472 wrote to memory of 2324	3472	SecretTweak.exe	116
PID 2324 wrote to memory of 5012	2324	cmd.exe	119
PID 3472 wrote to memory of 4476	3472	SecretTweak.exe	120
PID 4476 wrote to memory of 2844	4476	cmd.exe	122

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\SecretTweak\SecretTweak.exe
"C:\Users\Admin\AppData\Local\Temp\SecretTweak\SecretTweak.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2836
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c w32tm /resync /force >nul 2>&1
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1440
- - C:\Windows\system32\w32tm.exe
    w32tm /resync /force
    3⤵
    PID:624
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /C schtasks /create /xml "C:\Users\Admin\AppData\Local\Temp\SecretTweak_AutoStart.xml" /tn "SecretTweak" /f 2>&1
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\system32\schtasks.exe
    schtasks /create /xml "C:\Users\Admin\AppData\Local\Temp\SecretTweak_AutoStart.xml" /tn "SecretTweak" /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4164
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /C schtasks /query /tn "SecretTweak" >nul 2>&1
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:2236
- - C:\Windows\system32\schtasks.exe
    schtasks /query /tn "SecretTweak"
    3⤵
    PID:5056

C:\Users\Admin\AppData\Local\Temp\SecretTweak\SecretTweak.exe
C:\Users\Admin\AppData\Local\Temp\SecretTweak\SecretTweak.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3472
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c w32tm /resync /force >nul 2>&1
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1112
- - C:\Windows\system32\w32tm.exe
    w32tm /resync /force
    3⤵
    PID:908
- C:\Windows\system32\cmd.exe
  cmd.exe /C schtasks /create /xml "C:\Users\Admin\AppData\Local\Temp\SecretTweak_AutoStart.xml" /tn "SecretTweak" /f 2>&1
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\system32\schtasks.exe
    schtasks /create /xml "C:\Users\Admin\AppData\Local\Temp\SecretTweak_AutoStart.xml" /tn "SecretTweak" /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:5012
- C:\Windows\system32\cmd.exe
  cmd.exe /C schtasks /query /tn "SecretTweak" >nul 2>&1
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:4476
- - C:\Windows\system32\schtasks.exe
    schtasks /query /tn "SecretTweak"
    3⤵
    PID:2844

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Debugger Evasion

T1622

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Debugger Evasion

T1622

Query Registry

System Information Discovery