PDF malware analysis — malicious · 11d279088a56d321

MALICIOUS

PDF

33.1 KB Created: 2021-06-24 06:51:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 2e62d3f987d905de3ae27a78edf6efb7 SHA-1: 79c7cd0759ab83e44e840ec96ab415c77659ef60 SHA-256: 11d279088a56d3210f11bfd675c45833a327ad3a49bf97de30f4e2018b727e72

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document is designed to lure users with the promise of free game hacks for popular titles like Roblox and Coin Master. It contains an embedded URL that redirects to a malicious domain, likely serving malware or leading to further phishing attempts. The ML classifier strongly indicated maliciousness, and the PDF-specific heuristics confirm the use of a game hack lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/roblox-games-free-game-hack PDF link annotation
- https://www.advancissurgical.com/uploads/files/files/free-robux-hack-android-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-hacking-kqko_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-best-free-avatar-iddeas_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-premium-roblox_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-hacks-assassin_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-free-attack_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-studio-hack-message_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-free-spins-link-2021_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
`font_00_sfnt_off00002b42.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2B42	22532 bytes
SHA-256: `ab4f3581ac8995dd8650c9f5b7c624419d6302403ee91e616f97358ef98ef1a9`
`font_01_sfnt_off00005d1d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D1D	18908 bytes
SHA-256: `84d65caee345121f03095492183b79d619b42f259b476684e3c421e4e92cd760`

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