f405e45a64b4c05b21ae657e35d07e10d1e3efd0f80dc95ec8797b29ae03b167

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "3"	svchost.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	svchost.exe

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "1"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	dea5298d4d44155f83323f44cd9eec21.exe

Executes dropped EXE 1 IoCs

pid	Process
4904	winlogon.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NVIDIA Media Center Library = "C:\\Users\\Admin\\Admin1\\winlogon.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NVIDIA Media Center Library = "C:\\Users\\Admin\\Admin1\\winlogon.exe"	svchost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4904 set thread context of 3892	4904	winlogon.exe	95

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 10 IoCs

adware spyware

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Search Page = "http://3-f-9-1-1-v-v-g-d-k-5-5-4-5-v-.5-b-e-n-t-f-p-p-7-1-1-0-7-c-q-0-3-00-6-u-7-t-1-n-y-q-u-f-u.info"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Search Page = "http://1-7-t-3-.u-l-c-6-e-p-a-a-0-z-m-s-m-00-v-2-i-7-5-f-l-7-7-l-t-j-h-h-9.info"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Default_Search_URL = "http://b-5-9-u-n-t-5-s-7-.5-b-e-n-t-f-p-p-7-1-1-0-7-c-q-0-3-00-6-u-7-t-1-n-y-q-u-f-u.info"	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Default_Page_URL = "http://7-b-k-7-9-j-e-1-q-1-v-q-1-b-1-t-1-3-g-w-1-9-n-3-7-3-r-.a-l-v-d-z-o0-n-x-6-v-0-q-q-m-7-g-d-z-7-7-o-b-m-7-z-4-a-q-0.info"	svchost.exe
Key created	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Software\Microsoft\Internet Explorer\Main	svchost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Local Page = "http://d-6-o-o-k-s-5-e-c-z-f-x-2-v-8-9-0-a-m-3-t-1-8-a-o-3-4-6-.u-l-c-6-e-p-a-a-0-z-m-s-m-00-v-2-i-7-5-f-l-7-7-l-t-j-h-h-9.info"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Local Page = "http://8-i-8-a-u-0-i-6-b-u-7-.5-b-e-n-t-f-p-p-7-1-1-0-7-c-q-0-3-00-6-u-7-t-1-n-y-q-u-f-u.info"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Default_Search_URL = "http://n-l-m-d-b-n-9-9-k-5-0-2-w-5-8-3-c-6-a-1-3-b-i-.i-k-r-g-1-0-u-5-1-f-3-g-li-9-p-1-x-t-6-g-l-8-m-q-y-s-k-6-l.info"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Default_Page_URL = "http://5-r-y-4-e-z-z-h-m-i-4-z-7-f-6-6-d-0-y-m-8-m-g-l-w-2-m-5-s-.u-l-c-6-e-p-a-a-0-z-m-s-m-00-v-2-i-7-5-f-l-7-7-l-t-j-h-h-9.info"	svchost.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Internet Explorer\Main	svchost.exe

Modifies Internet Explorer start page 1 TTPs 2 IoCs

stealer

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://3-0-.5-b-e-n-t-f-p-p-7-1-1-0-7-c-q-0-3-00-6-u-7-t-1-n-y-q-u-f-u.info"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Start Page = "http://3-e-.5-b-e-n-t-f-p-p-7-1-1-0-7-c-q-0-3-00-6-u-7-t-1-n-y-q-u-f-u.info"	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeBackupPrivilege	3892	svchost.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4204	dea5298d4d44155f83323f44cd9eec21.exe
4904	winlogon.exe
3892	svchost.exe
3892	svchost.exe
3892	svchost.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 4904	4204	dea5298d4d44155f83323f44cd9eec21.exe	94
PID 4204 wrote to memory of 4904	4204	dea5298d4d44155f83323f44cd9eec21.exe	94
PID 4204 wrote to memory of 4904	4204	dea5298d4d44155f83323f44cd9eec21.exe	94
PID 4904 wrote to memory of 3892	4904	winlogon.exe	95
PID 4904 wrote to memory of 3892	4904	winlogon.exe	95
PID 4904 wrote to memory of 3892	4904	winlogon.exe	95
PID 4904 wrote to memory of 3892	4904	winlogon.exe	95
PID 4904 wrote to memory of 3892	4904	winlogon.exe	95
PID 4904 wrote to memory of 3892	4904	winlogon.exe	95
PID 4904 wrote to memory of 3892	4904	winlogon.exe	95
PID 4904 wrote to memory of 3892	4904	winlogon.exe	95

C:\Users\Admin\AppData\Local\Temp\dea5298d4d44155f83323f44cd9eec21.exe
"C:\Users\Admin\AppData\Local\Temp\dea5298d4d44155f83323f44cd9eec21.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Users\Admin\Admin1\winlogon.exe
  "C:\Users\Admin\Admin1\winlogon.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4904
- - C:\Windows\SysWOW64\svchost.exe
    0
    3⤵
    - Modifies visibility of file extensions in Explorer
    - Modifies visiblity of hidden/system files in Explorer
    - UAC bypass
    - Windows security bypass
    - Adds Run key to start application
    - Modifies Internet Explorer settings
    - Modifies Internet Explorer start page
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3892

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Query Registry

T1012

System Information Discovery