PDF malware analysis — malicious · a845368ece6b4e1c

MALICIOUS

PDF

46.1 KB Created: 2021-06-03 07:27:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: ed5e12e4246a32e6579cf40fd8c79075 SHA-1: c8347f2cfbb214a3d5ac991f5d9b929220edd152 SHA-256: a845368ece6b4e1c8683b249f1f826bdefc85ff216284c46bbbc12f195215522

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document presents a fake CAPTCHA or human verification prompt, a common lure to trick users into clicking malicious links. The embedded URL, https://netcdn.online/app/431946152/free-robux-without-human-verification-real-game-hack, likely leads to the download of a second-stage payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

Heuristics 4

Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://netcdn.online/app/431946152/free-robux-without-human-verification-real-game-hack PDF link annotation
- https://www.andrology.co.uk/uploads/files/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/earn-robux-today_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/roblox-generator_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/village-3-coin-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-minecraft-com_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-private-minecraft-server_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-blogspot_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000054fe.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x54FE	25508 bytes
SHA-256: `f3a0f44d1b8348615a4f69083e9fcc100e9fe082a85e7ed11a7a25a14d9f532c`
`font_01_sfnt_off00008ece.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8ECE	19296 bytes
SHA-256: `fcd37aae12381262441149b3f055c838aea0a99c045645b338d4096dcdd54a9c`

Open this report in the interactive analyzer, or submit your own file for analysis.