modiloader | abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477

System Information Discovery

persistence privilege_escalation

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	Server.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	VnHaxLoader.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dae31c02cb06222e776b9ccb9207edb1.exe	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dae31c02cb06222e776b9ccb9207edb1.exe	system.exe

Executes dropped EXE 8 IoCs

pid	Process
400	Server.exe
5072	VnHaxLoader.exe
1416	system.exe
4816	._cache_VnHaxLoader.exe
4052	Synaptics.exe
116	._cache_Synaptics.exe
4312	ha3sZkx3q6ulY9.exe
4224	pFpWWC8TEgmmgk.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dae31c02cb06222e776b9ccb9207edb1 = "\"C:\\Users\\Admin\\AppData\\Roaming\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\dae31c02cb06222e776b9ccb9207edb1 = "\"C:\\Users\\Admin\\AppData\\Roaming\\system.exe\" .."	system.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	VnHaxLoader.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_VnHaxLoader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ha3sZkx3q6ulY9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pFpWWC8TEgmmgk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	VnHaxLoader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe

Checks processor information in registry 2 TTPs 3 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	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	VnHaxLoader.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1240	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1416	system.exe
1416	system.exe
1416	system.exe
1416	system.exe
1416	system.exe
1416	system.exe
1416	system.exe
1416	system.exe
1416	system.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4816	._cache_VnHaxLoader.exe
Token: SeDebugPrivilege	116	._cache_Synaptics.exe
Token: SeDebugPrivilege	4312	ha3sZkx3q6ulY9.exe
Token: SeDebugPrivilege	4224	pFpWWC8TEgmmgk.exe
Token: SeDebugPrivilege	1416	system.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 4228 wrote to memory of 400	4228	abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe	82
PID 4228 wrote to memory of 400	4228	abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe	82
PID 4228 wrote to memory of 400	4228	abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe	82
PID 4228 wrote to memory of 5072	4228	abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe	83
PID 4228 wrote to memory of 5072	4228	abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe	83
PID 4228 wrote to memory of 5072	4228	abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe	83
PID 400 wrote to memory of 1416	400	Server.exe	84
PID 400 wrote to memory of 1416	400	Server.exe	84
PID 400 wrote to memory of 1416	400	Server.exe	84
PID 1416 wrote to memory of 4768	1416	system.exe	85
PID 1416 wrote to memory of 4768	1416	system.exe	85
PID 1416 wrote to memory of 4768	1416	system.exe	85
PID 5072 wrote to memory of 4816	5072	VnHaxLoader.exe	87
PID 5072 wrote to memory of 4816	5072	VnHaxLoader.exe	87
PID 5072 wrote to memory of 4816	5072	VnHaxLoader.exe	87
PID 5072 wrote to memory of 4052	5072	VnHaxLoader.exe	89
PID 5072 wrote to memory of 4052	5072	VnHaxLoader.exe	89
PID 5072 wrote to memory of 4052	5072	VnHaxLoader.exe	89
PID 4052 wrote to memory of 116	4052	Synaptics.exe	90
PID 4052 wrote to memory of 116	4052	Synaptics.exe	90
PID 4052 wrote to memory of 116	4052	Synaptics.exe	90
PID 4816 wrote to memory of 4312	4816	._cache_VnHaxLoader.exe	94
PID 4816 wrote to memory of 4312	4816	._cache_VnHaxLoader.exe	94
PID 4816 wrote to memory of 4312	4816	._cache_VnHaxLoader.exe	94
PID 116 wrote to memory of 4224	116	._cache_Synaptics.exe	97
PID 116 wrote to memory of 4224	116	._cache_Synaptics.exe	97
PID 116 wrote to memory of 4224	116	._cache_Synaptics.exe	97

C:\Users\Admin\AppData\Local\Temp\abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe
"C:\Users\Admin\AppData\Local\Temp\abe7301bf2f32f652c0317068168387a2828f27d1c755e2fda2336c0208c7477N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4228
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:400
- - C:\Users\Admin\AppData\Roaming\system.exe
    "C:\Users\Admin\AppData\Roaming\system.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1416
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\system.exe" "system.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:4768
- C:\Users\Admin\AppData\Local\Temp\VnHaxLoader.exe
  "C:\Users\Admin\AppData\Local\Temp\VnHaxLoader.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:5072
- - C:\Users\Admin\AppData\Local\Temp\._cache_VnHaxLoader.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_VnHaxLoader.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4816
  - - C:\Users\Admin\AppData\Local\Temp\ha3sZkx3q6ulY9.exe
      C:\Users\Admin\AppData\Local\Temp\._cache_VnHaxLoader.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:4312
- - C:\ProgramData\Synaptics\Synaptics.exe
    "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:4052
  - - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:116
    - - C:\Users\Admin\AppData\Local\Temp\pFpWWC8TEgmmgk.exe
        
        C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:4224

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery