PDF malware analysis — malicious · 8455d69685df53fd

MALICIOUS

PDF

33.1 KB Created: 2021-07-05 08:37:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: 3529b4f7f39dde61ff42b3b0a07de73d SHA-1: 88af5f2c61ac9f03cd09e1bd42ec358a3cc51bad SHA-256: 8455d69685df53fd1979d1d0a20716bdc28f41c33bcc003a8c2ab06d8af67453

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/479516143/how-to-install-minecraft-for-free-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-without-gift-cards_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-follow-a-player-everywhere-he-goes-roblox-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-skins-girl-free-download_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-2021-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-codes-to-get-free-items_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-no-verification-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-download_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/fast-and-easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-com_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/como-hackear-perfiles-de-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-shields-on-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
`font_00_sfnt_off00002f9e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F9E	21596 bytes
SHA-256: `795755ff436970b3ca2f34e050a5e4dac2df9241359eeb1c9126fdf040343273`
`font_01_sfnt_off00005eb1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EB1	18236 bytes
SHA-256: `80f9f3d3ddf194f52a7f748b585b61cd03432ad9892c468e4e347190080fe4ef`

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