PDF malware analysis — malicious · 099a51674d513e05

MALICIOUS

PDF

34.5 KB Created: 2021-07-04 09:15:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 4a2d57ce20e941dd00f265cb3efae714 SHA-1: af7393ad7dd6ee069397134f054c3fce7a88b406 SHA-256: 099a51674d513e05d45fd6644eb6b54ff39ede4e187748c8558e004f28f93db7

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
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 http://netcdn.tw/app/406889139/how-to-get-gold-cards-on-coin-master-hack-game-hack PDF link annotation
- https://www.sarsen.net/uploads/files/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/roblox-body-swap-potion-free_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-tiktok-accounts-and-passwords_GM835599320.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/coin-master-hack-download_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/unendlich-robux-hack_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/https-wwwroblox-thewiredhobo-tixrobux-hack_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-robux-hack_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-tiktok-views_GM835599320.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/minecraft-java-hacks_GM479516143.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/minecraft-for-free-games_GM479516143.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-spin-app-coin-master_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_002_off00003127.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3127	22568 bytes
SHA-256: `25d97384d16466d53be56bf5a6a4ef030d916337ed3d7049fb74ce63aaf5745b`
`font_01_sfnt_off000063a9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63A9	18416 bytes
SHA-256: `e29a79d2dbf06b1454da60d703e80c2f486a3031885ec1def1eabe45c18abdb3`

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