hxxp://polka[.]typekit[.]com

Analysis

max time kernel
59s
max time network
61s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03/01/2023, 15:16

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

http://polka.typekit.com

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run	msedge.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\c83f25f6-ea18-46f1-b550-90eab14c5638.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20230103161713.pma	setup.exe

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

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings	powershell.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	msedge.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4740	powershell.exe
4740	powershell.exe
4684	msedge.exe
4684	msedge.exe
2132	msedge.exe
2132	msedge.exe
5024	identity_helper.exe
5024	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
2132	msedge.exe
2132	msedge.exe
2132	msedge.exe
2132	msedge.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4740	powershell.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2132	msedge.exe
2132	msedge.exe
2132	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 4816	2132	msedge.exe	83
PID 2132 wrote to memory of 4816	2132	msedge.exe	83
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 1540	2132	msedge.exe	86
PID 2132 wrote to memory of 4684	2132	msedge.exe	87
PID 2132 wrote to memory of 4684	2132	msedge.exe	87
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88
PID 2132 wrote to memory of 3660	2132	msedge.exe	88

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell start shell:Appsfolder\Microsoft.MicrosoftEdge_8wekyb3d8bbwe!MicrosoftEdge http://polka.typekit.com
1⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4740

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --edge-redirect=Windows.Launch http://polka.typekit.com
1⤵
- Adds Run key to start application
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2132
- 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=0xf8,0xfc,0x100,0xd4,0x104,0x7ff9c00846f8,0x7ff9c0084708,0x7ff9c0084718
  2⤵
  PID:4816
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2128,9515273844090614898,9753923727983227611,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2140 /prefetch:2
  2⤵
  PID:1540
- 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=2128,9515273844090614898,9753923727983227611,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2324 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4684
- 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=2128,9515273844090614898,9753923727983227611,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2684 /prefetch:8
  2⤵
  PID:3660
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,9515273844090614898,9753923727983227611,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3784 /prefetch:1
  2⤵
  PID:4348
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,9515273844090614898,9753923727983227611,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3796 /prefetch:1
  2⤵
  PID:4664
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2128,9515273844090614898,9753923727983227611,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5296 /prefetch:8
  2⤵
  PID:2576
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2128,9515273844090614898,9753923727983227611,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5480 /prefetch:8
  2⤵
  PID:1120
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,9515273844090614898,9753923727983227611,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5400 /prefetch:1
  2⤵
  PID:4160
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2128,9515273844090614898,9753923727983227611,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5584 /prefetch:1
  2⤵
  PID:5112
- 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=2128,9515273844090614898,9753923727983227611,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3840 /prefetch:8
  2⤵
  PID:4884
- C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
  2⤵
  - Drops file in Program Files directory
  PID:3928
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x224,0x228,0x22c,0x220,0x1fc,0x7ff6b0a75460,0x7ff6b0a75470,0x7ff6b0a75480
    3⤵
    PID:1468
- 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=2128,9515273844090614898,9753923727983227611,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3840 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:5024

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4728

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4740-132-0x0000018CA3360000-0x0000018CA3382000-memory.dmp

Filesize
136KB

Download
memory/4740-134-0x00007FF9C6AF0000-0x00007FF9C75B1000-memory.dmp

Filesize
10.8MB

Download
memory/4740-133-0x00007FF9C6AF0000-0x00007FF9C75B1000-memory.dmp

Filesize
10.8MB

Download