PDF malware analysis — malicious · 69ca6b422e85f5aa

MALICIOUS

PDF

45.0 KB Created: 2021-06-01 15:16:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: c51a59c827f8134a54713ae12b7947fa SHA-1: 9677d3ae19bceb744c81cfdc8a814f87c5b1a548 SHA-256: 69ca6b422e85f5aad9aa64c19cda4f880ee44461e9b4057b475d7ee022c3f0fe

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 to trick the user into interacting with it. It contains an embedded URI pointing to a URL that likely serves as a download or redirect to a malicious payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.xyz/app/431946152/free-skin-roblox-download-game-hack PDF link annotation
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/roblox-rap-battles-hack_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/top-5-free-skip-animation-games-roblox_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/cheat-codes-for-roblox-pet-simulator_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/minecraft-hack-download_GM479516143.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/robux-hack_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/how-to-get-animations-for-free-on-roblox_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/roblox-money-hacks-2021_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/free-robux-obby_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/hacking-roblox-robux-codes_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/hack-robux-cheats_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/20212021-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.imparadigitale.it/wp-content/uploads/fsqm-files/roblox-tr-808-vst-free_GM431946152.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_off00005198.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5198	25216 bytes
SHA-256: `d4cd80cb3c2085771741fa515128a62818262a2538731e5b9b0e6bf198c32dc1`
`font_01_sfnt_off00008b09.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B09	18972 bytes
SHA-256: `f6d53fd3e6b2613485b122bfc95cb3e290dfe4e13783157172aeefed6635d13f`

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