Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4c37c556675146a…

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 09:24:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dfe1e20472817dd1b3e100ca1e610508 SHA-1: 7059a86b9ef1cf03e16c15a4c0a6b8f179d3b204 SHA-256: e4c37c556675146ac16260b6cd3bcb50d7ece2331578643e6638956bba765b43
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 0.9865

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/479516143/how-to-get-free-minecoins-in-minecraft-game-hack PDF link annotation
    • https://opac.heritagejkt.org//repository/mcpe-com_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-coins-coin-master-ios_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-roblox-generator_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
font_00_sfnt_off0000538a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x538A 25812 bytes
SHA-256: 0ef7d54285e956328ad95449f57af4c1989ed847d003df08117341e51f2685f6
font_01_sfnt_off00008db1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB1 17872 bytes
SHA-256: 81b1d154aec9bd98ecdb2ab8ecc7cbe93e1e8bf82edf60babb6ca5717914fb66

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