hxxp://kyun[.]host

Analysis

max time kernel
1799s
max time network
1685s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
09/06/2024, 01:24

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General

Target

http://kyun.host

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 = "133623700407857038"	chrome.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3060	chrome.exe
3060	chrome.exe
4076	chrome.exe
4076	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs

pid	Process
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe
Token: SeShutdownPrivilege	3060	chrome.exe
Token: SeCreatePagefilePrivilege	3060	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe

Suspicious use of SendNotifyMessage 12 IoCs

pid	Process
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe
3060	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 1592	3060	chrome.exe	79
PID 3060 wrote to memory of 1592	3060	chrome.exe	79
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 1568	3060	chrome.exe	81
PID 3060 wrote to memory of 2360	3060	chrome.exe	82
PID 3060 wrote to memory of 2360	3060	chrome.exe	82
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83
PID 3060 wrote to memory of 4060	3060	chrome.exe	83

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://kyun.host
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:3060
- 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=0x100,0x104,0x108,0xdc,0x10c,0x7ffcb57dab58,0x7ffcb57dab68,0x7ffcb57dab78
  2⤵
  PID:1592
- 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=1548 --field-trial-handle=1852,i,6040064744971891488,13771241962458240423,131072 /prefetch:2
  2⤵
  PID:1568
- 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=1972 --field-trial-handle=1852,i,6040064744971891488,13771241962458240423,131072 /prefetch:8
  2⤵
  PID:2360
- 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=2072 --field-trial-handle=1852,i,6040064744971891488,13771241962458240423,131072 /prefetch:8
  2⤵
  PID:4060
- 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=2976 --field-trial-handle=1852,i,6040064744971891488,13771241962458240423,131072 /prefetch:1
  2⤵
  PID:1304
- 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=2984 --field-trial-handle=1852,i,6040064744971891488,13771241962458240423,131072 /prefetch:1
  2⤵
  PID:588
- 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=3780 --field-trial-handle=1852,i,6040064744971891488,13771241962458240423,131072 /prefetch:1
  2⤵
  PID:1048
- 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=3252 --field-trial-handle=1852,i,6040064744971891488,13771241962458240423,131072 /prefetch:8
  2⤵
  PID:5000
- 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=4476 --field-trial-handle=1852,i,6040064744971891488,13771241962458240423,131072 /prefetch:8
  2⤵
  PID:1084
- 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=10.0.22000.1 --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1832 --field-trial-handle=1852,i,6040064744971891488,13771241962458240423,131072 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4076

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:2344

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\Default\Code Cache\js\index-dir\the-real-index

Filesize
120B

MD5
8d5a4d719400d66eae45b9ce8183cb0f

SHA1
8e405db82ff9f346c73cfb9a41dd5e8ae9c2ae86

SHA256
9d86b5cfcf9447a4a48612ac1b7895b4dedc3d6552b6e20d52073290664afa6f

SHA512
33defc00306578aefaff7a76a9b8f41f219007dce8fa0ff4394ba33a5856b3019ecd0d3dcd68f0c2d829d4736fa7c49649acac3396908f195918b9ebbf735824

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

Filesize
1KB

MD5
5aacae9f895d6dd9c95e674d2244ab7d

SHA1
ca3735430b2cf07ecffe47c09b43a8836fc41443

SHA256
202f419ab0b1dab17602134791476192c364319f83a611599d0511aaf94b3fe8

SHA512
56131e8966a81b626037c0f7eafa3739565bac80ccfaf756646647a3245bfe2fddf6415ad695bd73b368761d957928e56f0940b1836d6b4fccd7a4dd036b3810

Download Submit
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
8c1f1682224d2f3ca0d9f114de791925

SHA1
b0427e5b2a23cddccbedf5e0bcff6f3db2541bca

SHA256
067163847616c265980f0f25dfbda6acb85af790755abde9beb81c7106bf1238

SHA512
4292be34306c3403814bc155048bb91f89638cc023d4a2e379a13fe292826a53a5bbae53f77a7c351d2b1c9d40f6b7ae6099acdd3d734de8562d3e1844d0a30d

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

Filesize
129KB

MD5
9b5e5432f87ca095896520508d048b13

SHA1
0d7c64f17b7d724c60a0100b2677eb9c7fd6ed40

SHA256
ee961b5f26135f78a99da7b589f714bf8953da8cf69b44c2cea3ee330dd768a1

SHA512
d8b319065e01c02264d6f5c538e802a0ecec6bb5ed6dfa141cd19679369ab37ec83a7de23e14ba3502d42386f2ddb2485929ef11b1f02b8e108b86fc5e44d482

Download Submit