Malicious PDF — malware analysis report

Static analysis result for SHA-256 bef24e3f93e94b8c…

MALICIOUS

PDF

48.4 KB Created: 2021-06-03 13:40:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 615e9d41f7cffa3e3e3ea7684a938097 SHA-1: 12a17e99e3e02ae28d97f442cc8d16811d6ce539 SHA-256: bef24e3f93e94b8c9e39590088ff0ecb586885a5aa9d72e28843989d96cfdee1
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 0.9796

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-hack-without-human-verification-india-game-hack PDF link annotation
    • https://elibrary.ikhac.ac.id/repository/robux-gainer_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-time-hack_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/minecraft-pe-apk-download-free-015-0_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-bonus_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-spin-online-tool-coin-master_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-just-sign-in_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/pokemon-go-free-app_GM1094591345.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-things-in-the-catalog-for-roblox_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000513b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x513B 24992 bytes
SHA-256: 62b631579238045e771901b72a17df24987e753c4d89f1d370fc6ec9b2754a70
font_01_sfnt_off00008b5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B5B 4084 bytes
SHA-256: d62c185b04c3217391e7562e764029b89c4410869fdc44285cce50b7019c847a
font_02_sfnt_off0000991a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x991A 18788 bytes
SHA-256: f03f84e40d510781fd9acf302c96448e3582cb87a5c2d27401c18c9e1d195815

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