Malicious PDF — malware analysis report

Static analysis result for SHA-256 1112d3d18eaf3b0b…

MALICIOUS

PDF

42.8 KB Created: 2021-06-04 02:41:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 09f8fcf5cd910c14211f53da052abf75 SHA-1: 620a6cbf87d45ebd8aed18e6af70c486bbde94bf SHA-256: 1112d3d18eaf3b0bf4a58bf6e277327f60589b11211a641b2743b5c910c95281
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 0.9874

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/406889139/coin-master-free-spin-download-game-hack PDF link annotation
    • http://lib.vipklh.ru/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hack-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/install-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/no-robux_GM431946152.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_off00004cf3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CF3 24244 bytes
SHA-256: e026590d6fa9862a7c966841aff8ccda42ed87615bcf723b3ad56875b10d1aa0
font_01_sfnt_off000083f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F7 18464 bytes
SHA-256: d2049980b499644707db7dbba33f42fd49626c5cebf4a87bca5165b0820086b7

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