modiloader | 5c90433cb3e4d5dbac1e1a6a01f241889c5e612d3a8b6e6e82c305ed53873c9d

Modify Registry

Processes:

dllhost.exe

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:Wc7TkRnIl5=\"Lb3r5\";l1x1=new%20ActiveXObject(\"WScript.Shell\");nkyNWr2A=\"40\";TBW3P=l1x1.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\515aea08\\\\e74bddb1\");yrXwx3yZ9=\"KyuQg\";eval(TBW3P);lh8IzMjU5R=\"k2XG46Gj\";"	dllhost.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

dllhost.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools dllhost.exe

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

T1012

System Information Discovery

T1082

Processes:

dllhost.exe

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

Processes:

dllhost.exe

pid process

2496 dllhost.exe

pid	process
2496	dllhost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

Processes:

dllhost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ = "mshta javascript:m0ULdbi7G=\"04XHft6ua\";vD29=new%20ActiveXObject(\"WScript.Shell\");feXizD5ZH=\"4rT\";qI7U2N=vD29.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\515aea08\\\\e74bddb1\");t6ESoV5Mr=\"nmrrDHpd\";eval(qI7U2N);YI7WsrZL=\"1KC1isv1W\";"	dllhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\ = "mshta javascript:ad7h9LOK=\"ZCob\";z93j=new%20ActiveXObject(\"WScript.Shell\");o1A4dLYrL=\"ranLBlqd\";BKf5D=z93j.RegRead(\"HKCU\\\\software\\\\515aea08\\\\e74bddb1\");vPDMjv9r9=\"Lywfnrwofc\";eval(BKf5D);E6iICTpL=\"s\";"	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

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

dllhost.exe

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

Processes:

VirusShare_875219cca65f986eae6d4f75bd0364d0.exe

description	pid	process	target process
PID 2664 set thread context of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

Processes:

dllhost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\explorer.exe = "0"	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\iexplore.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-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\dllhost.exe = "0"	dllhost.exe
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
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\International	dllhost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

VirusShare_875219cca65f986eae6d4f75bd0364d0.exedllhost.exe

pid	process
2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe

Suspicious behavior: MapViewOfSection 12 IoCs

Processes:

VirusShare_875219cca65f986eae6d4f75bd0364d0.exedllhost.exedllhost.exe

pid	process
2520	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
2520	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
2520	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
2556	dllhost.exe
2556	dllhost.exe
2556	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe
2496	dllhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

VirusShare_875219cca65f986eae6d4f75bd0364d0.exe

pid process

2664 VirusShare_875219cca65f986eae6d4f75bd0364d0.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

VirusShare_875219cca65f986eae6d4f75bd0364d0.exeVirusShare_875219cca65f986eae6d4f75bd0364d0.exedllhost.exedllhost.exe

description	pid	process	target process
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2664 wrote to memory of 2520	2664	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
PID 2520 wrote to memory of 2556	2520	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	dllhost.exe
PID 2520 wrote to memory of 2556	2520	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	dllhost.exe
PID 2520 wrote to memory of 2556	2520	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	dllhost.exe
PID 2520 wrote to memory of 2556	2520	VirusShare_875219cca65f986eae6d4f75bd0364d0.exe	dllhost.exe
PID 2556 wrote to memory of 2496	2556	dllhost.exe	dllhost.exe
PID 2556 wrote to memory of 2496	2556	dllhost.exe	dllhost.exe
PID 2556 wrote to memory of 2496	2556	dllhost.exe	dllhost.exe
PID 2556 wrote to memory of 2496	2556	dllhost.exe	dllhost.exe
PID 2496 wrote to memory of 2364	2496	dllhost.exe	dllhost.exe
PID 2496 wrote to memory of 2364	2496	dllhost.exe	dllhost.exe
PID 2496 wrote to memory of 2364	2496	dllhost.exe	dllhost.exe
PID 2496 wrote to memory of 2364	2496	dllhost.exe	dllhost.exe
PID 2496 wrote to memory of 1948	2496	dllhost.exe	explorer.exe
PID 2496 wrote to memory of 1948	2496	dllhost.exe	explorer.exe
PID 2496 wrote to memory of 1948	2496	dllhost.exe	explorer.exe
PID 2496 wrote to memory of 1948	2496	dllhost.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_875219cca65f986eae6d4f75bd0364d0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2664

C:\Users\Admin\AppData\Local\Temp\VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
C:\Users\Admin\AppData\Local\Temp\VirusShare_875219cca65f986eae6d4f75bd0364d0.exe
2⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2520

C:\Windows\SysWOW64\dllhost.exe
dllhost.exe
3⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2556

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:2496

C:\Windows\SysWOW64\dllhost.exe
"C:\Windows\SysWOW64\dllhost.exe"
5⤵
PID:2364

C:\Windows\SysWOW64\explorer.exe
explorer.exe
5⤵
PID:1948

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Virtualization/Sandbox Evasion

T1497

Modify Registry

3

Credential Access

Discovery

Software Discovery

1

T1518

Query Registry

4

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery