hxxp://bytecsolucoes[.]com[.]br

Analysis

max time kernel
1800s
max time network
1688s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
24-03-2023 06:21

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General

Target

http://bytecsolucoes.com.br

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
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133241160818472269"	chrome.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1100	chrome.exe
1100	chrome.exe
2468	chrome.exe
2468	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

pid	Process
1100	chrome.exe
1100	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe
Token: SeShutdownPrivilege	1100	chrome.exe
Token: SeCreatePagefilePrivilege	1100	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe
1100	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 2284	1100	chrome.exe	76
PID 1100 wrote to memory of 2284	1100	chrome.exe	76
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4004	1100	chrome.exe	88
PID 1100 wrote to memory of 4536	1100	chrome.exe	89
PID 1100 wrote to memory of 4536	1100	chrome.exe	89
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90
PID 1100 wrote to memory of 1384	1100	chrome.exe	90

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" http://bytecsolucoes.com.br
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:1100
- 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=106.0.5249.119 --initial-client-data=0xfc,0x100,0x104,0xdc,0x108,0x7ff8f0909758,0x7ff8f0909768,0x7ff8f0909778
  2⤵
  PID:2284
- 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=1796 --field-trial-handle=1800,i,9032176452593328954,3790150369259314174,131072 /prefetch:2
  2⤵
  PID:4004
- 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=2168 --field-trial-handle=1800,i,9032176452593328954,3790150369259314174,131072 /prefetch:8
  2⤵
  PID:4536
- 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=utility --mojo-platform-channel-handle=2236 --field-trial-handle=1800,i,9032176452593328954,3790150369259314174,131072 /prefetch:8
  2⤵
  PID:1384
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3068 --field-trial-handle=1800,i,9032176452593328954,3790150369259314174,131072 /prefetch:1
  2⤵
  PID:3688
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3100 --field-trial-handle=1800,i,9032176452593328954,3790150369259314174,131072 /prefetch:1
  2⤵
  PID:3196
- 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=4780 --field-trial-handle=1800,i,9032176452593328954,3790150369259314174,131072 /prefetch:8
  2⤵
  PID:2444
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4900 --field-trial-handle=1800,i,9032176452593328954,3790150369259314174,131072 /prefetch:8
  2⤵
  PID:4492
- 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=4904 --field-trial-handle=1800,i,9032176452593328954,3790150369259314174,131072 /prefetch:8
  2⤵
  PID:3100
- 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=5140 --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=4716 --field-trial-handle=1800,i,9032176452593328954,3790150369259314174,131072 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2468

C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
1⤵
PID:2072

Network

MITRE ATT&CK Enterprise v6

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\Network\Network Persistent State

Filesize
882B

MD5
a9298df16889a084fca75014a48c97a2

SHA1
7ec6174819c4e808ef3228b0da46ddf2ff1da511

SHA256
f5fb3c0868f4def90a85f1f675e71e708f73a40c046d1b1e971c2e73edeb8eff

SHA512
0db53e177b2a7796a9e2098656b349054ad11ffe5b0ee2ed8d7b965924606351bb56faf199e028cc97e0b73af52fbd29e684e7605ff8aca300448be5b315c412

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

Filesize
6KB

MD5
0ad883358150e6dccd21cc6a548b3d87

SHA1
8a5c3be20822e6462ece6e189af32fac3410aee1

SHA256
22cb8abd81f23cc13dd8f1f82efa5da791660d87f14232414f450aacb234011e

SHA512
9e3751388db022b9f974508fa59e9e27b251ffb558bf1cdc1ae7c49d957e469d4af4b5c70fe736fbe498d646afb740c5f382d7cc78ea496851bf8088e45912ce

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\d8ca7e47-c5a0-4140-9a16-27f7e9a7f7ef.tmp

Filesize
15KB

MD5
ad6bd48ee4288eedb7e4b506def3d177

SHA1
7232e6da692acdd10c616d8372d7e021befd6634

SHA256
85371c99dc8ac47179383815a3add9947e517e5325c7f699961e7da461418557

SHA512
3c3cedca431a7d54f7320f23abd1b00ded1b2c694979f4ffd0b25cfac170abcd78f86abd3ba5de0d2275b45bb133f0a39ad4c900030857cad2c68dc402f3cf42

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

Filesize
144KB

MD5
c188d1df52692cdd0a9ba42a1a3d40f2

SHA1
347892fa851045be3d19e2001fbdead242a9027a

SHA256
373626f3f55722d6636026b4fb4d6608155d3217c9a586e5bf1c30ce6b7dad48

SHA512
ddd19328b36c743a148c34a0daa2d6ddd8fcad8f1dc67f5a766c8650ad6f9bc13c2593bdef618527919ddad7d15c03bf7c192d3dbc6cef62a126668252f5388f

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json

Filesize
2B

MD5
99914b932bd37a50b983c5e7c90ae93b

SHA1
bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

SHA256
44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

SHA512
27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

Download Submit