hxxps://www[.]pdflabs[.]com/tools/pdftk-the-pdf-toolkit/pdftk_free-2[.]02-win-setup[.]exe

Analysis

max time kernel
13s
max time network
18s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
08/07/2023, 00:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/pdftk_free-2.02-win-setup.exe

Score

8^/10

Malware Config

Signatures

Downloads MZ/PE file

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 = "133332489929609377"	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3384	chrome.exe
3384	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

pid	Process
3384	chrome.exe
3384	chrome.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe
Token: SeShutdownPrivilege	3384	chrome.exe
Token: SeCreatePagefilePrivilege	3384	chrome.exe

Suspicious use of FindShellTrayWindow 39 IoCs

pid	Process
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe
3384	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3384 wrote to memory of 4656	3384	chrome.exe	46
PID 3384 wrote to memory of 4656	3384	chrome.exe	46
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3352	3384	chrome.exe	87
PID 3384 wrote to memory of 3568	3384	chrome.exe	88
PID 3384 wrote to memory of 3568	3384	chrome.exe	88
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89
PID 3384 wrote to memory of 4952	3384	chrome.exe	89

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'" https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/pdftk_free-2.02-win-setup.exe
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:3384
- 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,0x100,0x104,0xd8,0x108,0x7ffd32bd9758,0x7ffd32bd9768,0x7ffd32bd9778
  2⤵
  PID:4656
- 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=1756 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:2
  2⤵
  PID:3352
- 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=2032 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:3568
- 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=2240 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:4952
- 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=2984 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:1
  2⤵
  PID:4416
- 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=3016 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:1
  2⤵
  PID:4264
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4852 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:4976
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=4884 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:932
- 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=5172 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:396
- 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=5348 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:4464
- 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=5404 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:4660
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4744 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:4680
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5384 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:1540
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5140 --field-trial-handle=1900,i,11763001157557188379,9704845081159284425,131072 /prefetch:8
  2⤵
  PID:3776

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:2668

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

Loading Replay Monitor...

Downloads

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

Filesize
6KB

MD5
526253f612546599e8fb8cd7ff766f49

SHA1
b87ec257cd7d5ed8acb2c23fef0bb4850814b4bb

SHA256
f2d591d452b923639e4b670f4e46b8c65905d4e3197f9cece67a2d3cd1965bc2

SHA512
c60c2ce8397cd8b5abef7832a4282f3549ee0f110a25506e78d4408897186b22f1b44e17afa11289c44dd3550fb769aa7476f5ca01cbdcccd828956def6ad071

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

Filesize
15KB

MD5
65189a673dc8987a95dfd12867cdb4c8

SHA1
2ba9ff0180c595104a8c30fb00928e23c025ccb0

SHA256
57fd777217b4f78aeca7a954a9ab67a7521e213a6983a546a52b359c77410d64

SHA512
a48f318b5c3ba14bece554eac500ea8f8978ee86a52e84924e1dc6f5c498ac587c329bc4e3fba5832c3a786726c6929b1483da7689f30ff8b986988e71245f1f

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

Filesize
172KB

MD5
c3f6f9589998ded22717bd381ac31ebc

SHA1
aab7ac962f73fb75b730b8b2ea387ffd1cd3dc77

SHA256
b7684e40869147e796187176f7281c0237879dc06659eee554ca7f7e2598dd9e

SHA512
ce1adb12210e88cb29f7ad41265389e6a5c29556d344d7a9a52bf34c6b2e31603a59710c9d5b23a4f757362e67ddcc5d2c7d75e38e53f75b1695cdfb0d3156dd

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
C:\Users\Admin\Downloads\pdftk_free-2.02-win-setup.exe

Filesize
3.5MB

MD5
a989bc6260363205a7d13a5dedd8594c

SHA1
b96937b422970f1f8c3c8413929ebad3e6e747fd

SHA256
6d9cd2cbdff1b00a1c6c84335dcf1199ad65519cfa782c3a631c32b1144eb4c9

SHA512
4704de01781abce4421f86f68ce7c825c5acb96b69a2520caaa8cc5b12f7fcadc85917d81b22a301aff54eed5acf114dd9818c5f91c5e4e859824c874d2c560d

Download Submit