hxxp://www[.]czas[.]cz/download/prezentace/czas00_en[.]pdf

Analysis

max time kernel
149s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05/04/2024, 13:35

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General

Target

http://www.czas.cz/download/prezentace/czas00_en.pdf

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 = "133567977498796255"	chrome.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2884	chrome.exe
2884	chrome.exe
4636	chrome.exe
4636	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe
Token: SeShutdownPrivilege	2884	chrome.exe
Token: SeCreatePagefilePrivilege	2884	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe
2884	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 4724	2884	chrome.exe	85
PID 2884 wrote to memory of 4724	2884	chrome.exe	85
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 860	2884	chrome.exe	87
PID 2884 wrote to memory of 784	2884	chrome.exe	88
PID 2884 wrote to memory of 784	2884	chrome.exe	88
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	chrome.exe	89
PID 2884 wrote to memory of 4000	2884	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 http://www.czas.cz/download/prezentace/czas00_en.pdf
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:2884
- 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,0x100,0x104,0xd8,0x108,0x7ff823239758,0x7ff823239768,0x7ff823239778
  2⤵
  PID:4724
- 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=1720 --field-trial-handle=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:2
  2⤵
  PID:860
- 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=2132 --field-trial-handle=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:8
  2⤵
  PID:784
- 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=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:8
  2⤵
  PID:4000
- 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=2880 --field-trial-handle=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:1
  2⤵
  PID:4844
- 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=2888 --field-trial-handle=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:1
  2⤵
  PID:2904
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --extension-process --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --mojo-platform-channel-handle=4588 --field-trial-handle=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:1
  2⤵
  PID:2508
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --pdf-renderer --lang=en-US --js-flags=--jitless --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=4792 --field-trial-handle=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:1
  2⤵
  PID:868
- 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=5212 --field-trial-handle=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:8
  2⤵
  PID:3244
- 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=5316 --field-trial-handle=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:8
  2⤵
  PID:776
- 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=2252 --field-trial-handle=1888,i,586535731785289567,14582364951419248034,131072 /prefetch:2
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4636

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:2340

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\Network\Network Persistent State

Filesize
822B

MD5
d5694320601221f8379b858900024a83

SHA1
c6e04d61e6c24db1a0f98a4017c022e5e89cfa25

SHA256
67acd4013a9bd127b36247a33cb530c83efc9c41c3d7e32e6f5fb7bc3f73d1c2

SHA512
a658e82e4335c80b308bce6f976216262381c6b0eaa83fa5aa602ea2179a01d9c832a25f075ce1fe6762faa7bb69fa85ef1682631b71775d09c782cca0681c9f

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

Filesize
6KB

MD5
73bba0f72d0092b42b7e7a426fc2f43d

SHA1
3ced9ce68359b46df76f7a62b4925e430278d546

SHA256
e0f754c8fde9645e287a12af58e798856db1a2c5e08536cc58ca2b373a6fb20c

SHA512
f1593a1308d9501f20e9b41d370469006a3e2399f324285f6b6f409eacfc58657eb069b530a030b446c6df26eb325f2f458a53f490180e99a601d772d363a3ab

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

Filesize
114KB

MD5
df98b0bc0a2e7549c2e4e265d49e9076

SHA1
eea4554c9784583c43575fe3e2cbfd898c5236e6

SHA256
84805defa869662f19f2744bcc138ea42bb62ffd307fb2757831a0c3e6dce401

SHA512
7fd52cca16e6ef56301d2cf5165a05764c2c9ec1eedb1419b6554ce22d86e031bb14de7d6169faaf5d8bc61c897828d48a31ac42b773907cafaf629b5f93f32e

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