PDF malware analysis — malicious · 7ab94410b96cb216

MALICIOUS

PDF

42.4 KB Created: 2021-05-11 02:13:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: 22029eb64b01b60a25308f73d9e835fb SHA-1: da3c7693606c72df6d7efca1d194eca6fdb1884f SHA-256: 7ab94410b96cb2163389eb167eb77034ddf1db7662044b3a76f127bfe3d58dc2

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 0.9971

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 https://netcdn.xyz/app/406889139/where-can-i-get-free-coins-for-coin-master-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spins-and-coins-blogspot-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-cp_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-now_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-download-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spin-coin_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_003_off000049b5.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49B5	25848 bytes
SHA-256: `4b7a39abfcb38daf055db3a712d18916ecd7d67af7d692e0f691e1011ce35536`
`font_01_sfnt_off00008448.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8448	18076 bytes
SHA-256: `d5e6c6e53570627b424db4ca2759b6e9ac4bc686df616c28f2d32ec66339f87e`

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