Malicious PDF — malware analysis report

Static analysis result for SHA-256 764a6f648e250403…

MALICIOUS

PDF

45.5 KB Created: 2021-06-03 10:59:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 5e66fa82ce90eff5400754a7bb5d73c7 SHA-1: 0f1fcac0cc0ab750bdb5b5fa538d688a4d19d7a0 SHA-256: 764a6f648e250403f0d784774772705f596b41d7a63912af5e66ff305ade9289
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 0.9864

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.online/app/431946152/roblox-hacked-version-game-hack PDF link annotation
    • http://pustaka.bbppketindan.info/repository/hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/cowboy-t-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/get-free-spins-on-coin-master-links_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/village-coin_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-pc-hack-download_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_004_off000052b9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52B9 25388 bytes
SHA-256: 97e3a36c5b1842ef95e30c157ae3489b64f284b7e4978f9ed23ca119bf304c86
font_01_sfnt_off00008e24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E24 18608 bytes
SHA-256: 1ecc9580a68a9d8cddaeb68f5ba7642643800a9b47dfc5932154ad501a7e9da7

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