47e5df70654cbcabc73440e2e29aa962baa66e09cfef1973cd9084c7b5b91b74

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	3c17072460aa23cf616534a6bd598572.exe

Windows security bypass 2 TTPs 1 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	3c17072460aa23cf616534a6bd598572.exe

Windows security modification 2 TTPs 1 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	3c17072460aa23cf616534a6bd598572.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	3c17072460aa23cf616534a6bd598572.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5088 set thread context of 2124	5088	3c17072460aa23cf616534a6bd598572.exe	87

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\system\wincal.exe	3c17072460aa23cf616534a6bd598572.exe
File opened for modification	C:\WINDOWS\system\wincal.exe	3c17072460aa23cf616534a6bd598572.exe

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3512	msedge.exe
3512	msedge.exe
1512	msedge.exe
1512	msedge.exe
3632	identity_helper.exe
3632	identity_helper.exe
5056	msedge.exe
5056	msedge.exe
5056	msedge.exe
5056	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeBackupPrivilege	2124	3c17072460aa23cf616534a6bd598572.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe
1512	msedge.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5088	3c17072460aa23cf616534a6bd598572.exe
2124	3c17072460aa23cf616534a6bd598572.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 2124	5088	3c17072460aa23cf616534a6bd598572.exe	87
PID 5088 wrote to memory of 2124	5088	3c17072460aa23cf616534a6bd598572.exe	87
PID 5088 wrote to memory of 2124	5088	3c17072460aa23cf616534a6bd598572.exe	87
PID 5088 wrote to memory of 2124	5088	3c17072460aa23cf616534a6bd598572.exe	87
PID 5088 wrote to memory of 2124	5088	3c17072460aa23cf616534a6bd598572.exe	87
PID 5088 wrote to memory of 2124	5088	3c17072460aa23cf616534a6bd598572.exe	87
PID 5088 wrote to memory of 2124	5088	3c17072460aa23cf616534a6bd598572.exe	87
PID 5088 wrote to memory of 2124	5088	3c17072460aa23cf616534a6bd598572.exe	87
PID 2124 wrote to memory of 1512	2124	3c17072460aa23cf616534a6bd598572.exe	93
PID 2124 wrote to memory of 1512	2124	3c17072460aa23cf616534a6bd598572.exe	93
PID 1512 wrote to memory of 2256	1512	msedge.exe	94
PID 1512 wrote to memory of 2256	1512	msedge.exe	94
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 5096	1512	msedge.exe	95
PID 1512 wrote to memory of 3512	1512	msedge.exe	96
PID 1512 wrote to memory of 3512	1512	msedge.exe	96
PID 1512 wrote to memory of 4872	1512	msedge.exe	97
PID 1512 wrote to memory of 4872	1512	msedge.exe	97
PID 1512 wrote to memory of 4872	1512	msedge.exe	97
PID 1512 wrote to memory of 4872	1512	msedge.exe	97
PID 1512 wrote to memory of 4872	1512	msedge.exe	97
PID 1512 wrote to memory of 4872	1512	msedge.exe	97
PID 1512 wrote to memory of 4872	1512	msedge.exe	97
PID 1512 wrote to memory of 4872	1512	msedge.exe	97
PID 1512 wrote to memory of 4872	1512	msedge.exe	97
PID 1512 wrote to memory of 4872	1512	msedge.exe	97

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	3c17072460aa23cf616534a6bd598572.exe

C:\Users\Admin\AppData\Local\Temp\3c17072460aa23cf616534a6bd598572.exe
"C:\Users\Admin\AppData\Local\Temp\3c17072460aa23cf616534a6bd598572.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Users\Admin\AppData\Local\Temp\3c17072460aa23cf616534a6bd598572.exe
  "C:\Users\Admin\AppData\Local\Temp\3c17072460aa23cf616534a6bd598572.exe"
  2⤵
  - UAC bypass
  - Windows security bypass
  - Windows security modification
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2124
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://www.google.cl/
    3⤵
    - Enumerates system info in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    - Suspicious use of WriteProcessMemory
    PID:1512
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffbb24f46f8,0x7ffbb24f4708,0x7ffbb24f4718
      4⤵
      PID:2256
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2100 /prefetch:2
      4⤵
      PID:5096
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2524 /prefetch:3
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:3512
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2856 /prefetch:8
      4⤵
      PID:4872
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3248 /prefetch:1
      4⤵
      PID:4708
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3212 /prefetch:1
      4⤵
      PID:4524
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4044 /prefetch:1
      4⤵
      PID:1612
  - - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5080 /prefetch:8
      4⤵
      PID:3260
  - - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5080 /prefetch:8
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:3632
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5148 /prefetch:1
      4⤵
      PID:3212
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5140 /prefetch:1
      4⤵
      PID:2964
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5444 /prefetch:1
      4⤵
      PID:2764
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5412 /prefetch:1
      4⤵
      PID:4348
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2088,997970091440840418,3245799876694749248,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1868 /prefetch:2
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:5056

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1264

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry