hxxps://is-serwis[.]pl/czs/

Analysis

max time kernel
150s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
23/01/2024, 08:07

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General

Target

https://is-serwis.pl/czs/

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 = "133504708580344509"	chrome.exe
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4156	chrome.exe
4156	chrome.exe
4236	chrome.exe
4236	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs

pid	Process
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe
Token: SeShutdownPrivilege	4156	chrome.exe
Token: SeCreatePagefilePrivilege	4156	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe
4156	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4156 wrote to memory of 4008	4156	chrome.exe	84
PID 4156 wrote to memory of 4008	4156	chrome.exe	84
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 4920	4156	chrome.exe	87
PID 4156 wrote to memory of 2032	4156	chrome.exe	88
PID 4156 wrote to memory of 2032	4156	chrome.exe	88
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89
PID 4156 wrote to memory of 1528	4156	chrome.exe	89

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 https://is-serwis.pl/czs/
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:4156
- 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,0x100,0x104,0xd8,0x108,0x7ffb0e699758,0x7ffb0e699768,0x7ffb0e699778
  2⤵
  PID:4008
- 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=1792 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:2
  2⤵
  PID:4920
- 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=2104 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:8
  2⤵
  PID:2032
- 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=2196 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:8
  2⤵
  PID:1528
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3184 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:1
  2⤵
  PID:2708
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --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=3168 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:1
  2⤵
  PID:1020
- 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=4432 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:8
  2⤵
  PID:5088
- 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=4564 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:8
  2⤵
  PID:1984
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --mojo-platform-channel-handle=5112 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:1
  2⤵
  PID:4460
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --mojo-platform-channel-handle=3360 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:1
  2⤵
  PID:2484
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=3764 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:1
  2⤵
  PID:320
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --mojo-platform-channel-handle=4992 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:1
  2⤵
  PID:324
- 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=820 --field-trial-handle=1884,i,11532164967395507724,10183164206270871859,131072 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4236

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:4616

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\Preferences

Filesize
5KB

MD5
5ea400913a9b179216c1d2e84874d65b

SHA1
a88842b25887abbd3eeb14b09520ece0dd9c0d4a

SHA256
7fcd2e58c313314c21ad1da71236a047bcb28dcfc56adf91a70cddc91d9a1b03

SHA512
63cf6442ca2eadea8c77b42889d2ab5589f9f095693b4e5e4693f3046777f4c292aae9d32319cef316ca3e539051c4e5081353642225fd6f29eebb560b159a98

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

Filesize
5KB

MD5
9ba26f8524c48e3b5b6594ed85dbe1d9

SHA1
7180f506e58caa00c6232eba97a290dc370eff5c

SHA256
4536221e3add34a68b181e5bce4f99152b187c87312993bf94e70282639f343c

SHA512
d2ab100dcc2d32ac34f3d0114dbdfa59675e7fe97b0a89c607424b11ebb0e9ce116bf1bcd6ada5fb0d11b2fa668fc83fed87164bea9fd35ae117b315caca8f73

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

Filesize
5KB

MD5
c54bc13279ac96a6e64ae954e7e2c575

SHA1
eca2e6cfb4bcf05f871d5fd37346fbfa6dbb01d3

SHA256
48b4752160fbabbfdc07376d0631849a1b577854a65e7730d280c8b83d6a0d1d

SHA512
52287847fa71aef06617c9de6e386976ca8c7efe2647df4f499172205b628054c6b24bc1feac718db794f376ae7be87163bd6254e5e6ecd8faf57f555ff65298

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

Filesize
114KB

MD5
a054cc6dc67d0a680a8a7ad5a204ff4c

SHA1
e94517d4fd7f7626f2e3ee228fa1cd094333decd

SHA256
777a9a290839d3e449f32aed9083f19a571821735cd352e3e314ef2ab171abcc

SHA512
07f6ff29e28f057ece238ac1c24e076165f6da201461b660bfa36c04db71f295ff5550697f8d6c8bd444a6807cef9f82195b4876fd958a4e0cb1d95ffef80c22

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