PDF malware analysis — malicious · 78cc052ddf012b69

MALICIOUS

PDF

34.8 KB Created: 2021-06-22 20:00:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: f45442bcfef8a807ab322ba59d078113 SHA-1: 7f7f3ff25c1e865e5d91a394abe7285dbfe01d64 SHA-256: 78cc052ddf012b6903485bad179c5dee50c551226a4d59ac81908105d11d37e5

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to 'free Robux gift card codes' to direct users to a malicious URL. The PDF_GAME_HACK_REDIRECT_LURE heuristic and the embedded URL strongly indicate a phishing or scam attempt. While no scripts were explicitly extracted, the nature of the lure suggests the linked content is designed to exploit user interest in game-related rewards, likely leading to a further payload or credential harvesting.

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.co/app/431946152/free-robux-gift-card-codes-december-2021-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/earn-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/best-hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-animal-ears-roblox-hat_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-neck-accessories_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-offline-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-tiktok-accounts_GM835599320.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/rbxnow-gg-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spin-link-in-coin-master-game_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/pokemon-go-free-677_GM1094591345.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/can-you-make-a-minecraft-server-for-free_GM479516143.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_off00002e67.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E67	22240 bytes
SHA-256: `2caadfb9675eea21bbc14ea1a57c9a138888da0b873aecdbe42203232d097499`
`font_01_sfnt_off00006001.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6001	19944 bytes
SHA-256: `8ba4e5dedccd3d64d77d94b15b313ec52151987f3449e69e9d32ce03d04270ca`

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