Malicious PDF — malware analysis report

Static analysis result for SHA-256 59f3fcfbbad43112…

MALICIOUS

PDF

42.4 KB Created: 2021-05-13 10:30:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5d5f83d4a3235dfa0b543d5bcb459a1c SHA-1: 40909b87b2e4afab7ea606918dd7b2ba990f1b42 SHA-256: 59f3fcfbbad43112cd5310883845408201995067aee0e2ddb5dc67602c2ad8b6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are designed to lure users into clicking on them by promising game hacks and free currency. The primary URL, https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-link-today-2021-free-game-hack, is directly associated with a game hack lure. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a potential for malicious redirection or download, aligning with common phishing and social engineering tactics.

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/coin-master-daily-free-spins-link-today-2021-free-game-hack PDF link annotation
    • http://www.teapotjewelry.com/images/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/free-robux-images_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/how-to-get-free-roblox-items_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/coin-master-hack-review_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/ios-coin-master-hack_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.

FilenameKindSourceSize
stream_003_off00004809.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4809 25112 bytes
SHA-256: b745091fae382c86ddb99af740189866c586055dd9551c10b2824f6367f6637f
font_01_sfnt_off000080f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80F8 19052 bytes
SHA-256: 51ec1fd699785aa8f843f12306ac352f9679003eb9b4544ea09afbac11be1d71

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