hxxp://polyfill[.]io

Analysis

max time kernel
149s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2024, 08:59

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General

Target

http://polyfill.io

Score

1^/10

Malware Config

Signatures

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	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133642980313693247"	chrome.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1896	chrome.exe
1896	chrome.exe
1776	chrome.exe
1776	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe
Token: SeShutdownPrivilege	1896	chrome.exe
Token: SeCreatePagefilePrivilege	1896	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe
1896	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1896 wrote to memory of 4972	1896	chrome.exe	88
PID 1896 wrote to memory of 4972	1896	chrome.exe	88
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 464	1896	chrome.exe	89
PID 1896 wrote to memory of 4936	1896	chrome.exe	90
PID 1896 wrote to memory of 4936	1896	chrome.exe	90
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91
PID 1896 wrote to memory of 3272	1896	chrome.exe	91

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument http://polyfill.io
1⤵
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1896
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=110.0.5481.104 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7fffa143ab58,0x7fffa143ab68,0x7fffa143ab78
  2⤵
  PID:4972
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1728 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:2
  2⤵
  PID:464
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2184 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:8
  2⤵
  PID:4936
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=2200 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:8
  2⤵
  PID:3272
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2904 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:1
  2⤵
  PID:2676
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3268 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:1
  2⤵
  PID:2408
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4208 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:1
  2⤵
  PID:444
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3680 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:1
  2⤵
  PID:2172
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4500 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:8
  2⤵
  PID:3932
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4656 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:8
  2⤵
  PID:3068
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=4248 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:1
  2⤵
  PID:4404
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --mojo-platform-channel-handle=2388 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:1
  2⤵
  PID:4052
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=4704 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:1
  2⤵
  PID:852
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --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=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2312 --field-trial-handle=1932,i,2615084194096542409,9488191699589867442,131072 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1776

C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\110.0.5481.104\elevation_service.exe"
1⤵
PID:2160

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4204,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=3468 /prefetch:8
1⤵
PID:4836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\24058d90-19ed-4390-84d0-2951a2330478.tmp

Filesize
255KB

MD5
7832952e0567f33691702ace9caa1d0e

SHA1
e07444902c06a903d54906d5c24a08fa9d00cae7

SHA256
7318adefd71a9839fe55d42ed4114bfb4b9b85dab5890d7924135c48795cdd43

SHA512
b36261893ee942fd82949531a4240a27f69b22666690313cdde79ade90411477fb13ccc000c06c1499076cbbfb0ede5ba166fecbb61ba6ec23192542d20f778b

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C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State

Filesize
929B

MD5
417859cb2656aa6f86d027ed80949374

SHA1
94c85bb7ebd7eacb59a6da30d42b0159f133aa04

SHA256
053bafd67b1d685e7d42c7442d3f0cc2ea70e8a3dbfac8c003ed219cfdd3be15

SHA512
efef1a8c7944c370776af64c645bddc31c5a9634ce64c790ea13e2ffa4830f8068d207cf717f68269940ae53a46ee02bf5d258261e26734859edbb69ebf67454

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C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

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C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

Filesize
7KB

MD5
ff133894d2e7a344863253978b5de7e7

SHA1
59e4c87045ac2e2e6565d73e5b1939e02dc7bf87

SHA256
48b433f0d4dbbf245d583b3a363b73f4d3269b3eb062fc8c6c1c2fd589c7eb3a

SHA512
59e0ba2dd82a1070f1bda1ebe2e51695c08f718c919d5533f4175bc50c19847cc7a2226858bad2ff1240e89a07aba0fd24ed57a2bd16c1b4d5f45b297dab86b8

Download Submit