Malicious PDF — malware analysis report

Static analysis result for SHA-256 84de0c655b03925f…

MALICIOUS

PDF

43.7 KB Created: 2021-05-19 04:12:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ad4b6384b5c8f560cbeb2b1ae53105b1 SHA-1: 806d37aa7332ea26cbcb4524cbf2706d2d2549e4 SHA-256: 84de0c655b03925f672316399a472a791ab774c31900779034c0814d9f4a6bd2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links and a primary URL that lure users with promises of game hacks and free currency. The heuristic findings indicate a redirection to a 'game hack' site, and the ML classifier strongly flagged the document as malicious. While no scripts were directly extracted, the PDF structure itself facilitates the redirection, likely to a site that hosts further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/coin-master-game-free-spin-download-game-hack PDF link annotation
    • http://www.ma-plast.hr/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-games-coin-master_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://www.ma-plast.hr/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ma-plast.hr/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-hack-fast-org_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/roblox-rewards-robux_GM431946152.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.ma-plast.hr/files/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • http://www.ma-plast.hr/files/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c95.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C95 25312 bytes
SHA-256: 3e637d678dbe676cb3cef0dd2341997822cb7e557be2af7724a1c9f43584d45d
font_01_sfnt_off0000874d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x874D 18728 bytes
SHA-256: e9237f59f36a661b7030ea5dffba9c37425a47ba7678478d8dd5732b10452e85

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