hxxp://api[.]valorbest[.]pt/

Resubmissions

19/08/2024, 17:23

240819-vyh8bawgnc 1

19/08/2024, 17:23

240819-vx6l8awglf 4

Analysis

max time kernel
16s
max time network
23s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
19/08/2024, 17:23

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

http://api.valorbest.pt/

Score

4^/10

discovery

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SystemTemp	chrome.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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 = "133685618150685362"	chrome.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1287768749-810021449-2672985988-1000\{8E7BDFCD-824D-4E45-B6B8-4235ECC1C221}	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3860	chrome.exe
3860	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe

Suspicious use of AdjustPrivilegeToken 32 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe
Token: SeShutdownPrivilege	3860	chrome.exe
Token: SeCreatePagefilePrivilege	3860	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe

Suspicious use of SendNotifyMessage 12 IoCs

pid	Process
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe
3860	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3860 wrote to memory of 4716	3860	chrome.exe	81
PID 3860 wrote to memory of 4716	3860	chrome.exe	81
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 4876	3860	chrome.exe	82
PID 3860 wrote to memory of 1928	3860	chrome.exe	83
PID 3860 wrote to memory of 1928	3860	chrome.exe	83
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84
PID 3860 wrote to memory of 1640	3860	chrome.exe	84

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://api.valorbest.pt/
1⤵
- Drops file in Windows directory
- 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:3860
- 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:4 --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=123.0.6312.123 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7fff8d9bcc40,0x7fff8d9bcc4c,0x7fff8d9bcc58
  2⤵
  PID:4716
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1800,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=1796 /prefetch:2
  2⤵
  PID:4876
- 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 --no-appcompat-clear --field-trial-handle=2076,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=2092 /prefetch:3
  2⤵
  PID:1928
- 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 --no-appcompat-clear --field-trial-handle=2164,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=2180 /prefetch:8
  2⤵
  PID:1640
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=2992,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=3028 /prefetch:1
  2⤵
  PID:4248
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3016,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=3216 /prefetch:1
  2⤵
  PID:1464
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4348,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=4412 /prefetch:1
  2⤵
  PID:5076
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --field-trial-handle=4652,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=4664 /prefetch:1
  2⤵
  PID:1192
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --field-trial-handle=4420,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=4560 /prefetch:1
  2⤵
  PID:836
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --field-trial-handle=5068,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=5004 /prefetch:1
  2⤵
  PID:3808
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --no-appcompat-clear --field-trial-handle=3148,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=5092 /prefetch:8
  2⤵
  PID:2060
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=video_capture.mojom.VideoCaptureService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=3112,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=4488 /prefetch:8
  2⤵
  - Modifies registry class
  PID:2768
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --field-trial-handle=4468,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=3348 /prefetch:1
  2⤵
  PID:3004
- 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 --no-appcompat-clear --field-trial-handle=5220,i,5778450082468726812,12429988022508743533,262144 --variations-seed-version=20240801-180145.014000 --mojo-platform-channel-handle=5544 /prefetch:8
  2⤵
  PID:2084

C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe"
1⤵
PID:1288

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
1⤵
PID:4952

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
649B

MD5
a0b02eb8ec777c9696766bb2513bfcab

SHA1
cb17f280bf4ff6982a0bad03ba5d3da7195c3f4e

SHA256
46df827605109db9b39da0f98b17a144b35ff774720663c816b1930d8d6ce810

SHA512
bae7dc8e93f1727fa70deab8b445c4b04049d1644a359b048ad9bb86428066bedfb8050766f11ba19485a9d7c8f6f290c397159efc0b000dca6ad0920aeec68c

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000019

Filesize
209KB

MD5
3e552d017d45f8fd93b94cfc86f842f2

SHA1
dbeebe83854328e2575ff67259e3fb6704b17a47

SHA256
27d9c4613df7a3c04da0b79c13217aa69992b441acb7e44bf2a7578ca87d97d6

SHA512
e616436f2f15615429c7c5c37de3990c3e86c5e1da7d75a0f524fc458b75d44a5be1a3648a628d63e1cf8aa062e08b538f2f2bc9c6a0b42157beb24f82c571d9

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

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

Filesize
1KB

MD5
d941d2c3e5fac9a0aec21712aa82294b

SHA1
232d42f028ca50be16dcc1fa42dbf2a02a280c47

SHA256
8306e952c02a23114c840bef7e774c4c58441abbccdb3806cb7e0d9acba10610

SHA512
70121d1449a96c670f41c3b9db0e1027e68b144f2518125bdcc99753de7f75ae8035af5625b9dbf2696bd611010708094cd64db2711f7f50e7373d10964912b9

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

Filesize
9KB

MD5
01af5473d5dd43e14bd3f288771b459e

SHA1
8004a073a1d9c9254ab78d54f0270320f463e1c9

SHA256
7921300e6eb85b6472e6feb8dceef1515e991543a58a7fdbcf4dbdb3e357f6d2

SHA512
ff3ec548410c2fbcfd26417c6c506b3fe416facb4a0fd5bdefe31fe656bae6991e27b89ecb7ceabe12fd929593e19b33fc02f9537a9656b4bb32ce5100c217b7

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

Filesize
195KB

MD5
751b1b04a05e8aa5928eb91ffc1b4490

SHA1
630f44d49187a63073ec4a906aab5be1c8b96b12

SHA256
5823305465e0beda7eb54d8fe45567adfbd473eb56983fc52917a4b965b707a2

SHA512
c1570662821265f3dee69393f52b4b10f55e41ed9599b50f621863c3b90509682d7c978368b688125e116774755fbcd378d86f09cb0b4f65dc6a7e3fa7a2af14

Download Submit