Malicious PDF — malware analysis report

Static analysis result for SHA-256 36e3474cdb863f63…

MALICIOUS

PDF

36.2 KB Created: 2021-07-05 00:14:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: dc4f588f36753e03e00a5ff89c834624 SHA-1: 021f9b4f79cc16ccfff730fb3ca44c6655e325d8 SHA-256: 36e3474cdb863f634fc1587d99f701266e0272d951da705b8ef25b4c0f33c62d
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 0.9980

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 http://netcdn.tw/app/406889139/coin-master-free-spins-ios-2021-game-hack PDF link annotation
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/best-free-gear-in-roblox_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/hack-de-dinero-para-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/pubg-uc-ykleme_GM1330123889.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/how-to-play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/coinmaster-com_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/cheats-roblox-mine-simulator-julio-2021_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-no-verification-or-download_GM431946152.pdfIn PDF document text
    • http://elearningmi.mibustanululumtulungagung.com/__statics/gudangsoal/files/coin-master-cracked-apk-free-download_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
font_00_sfnt_off000035eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35EB 23076 bytes
SHA-256: bc734169a6511840c4587133940e90e4b2fa61adecf9b579e0fff7eb5aba0e32
font_01_sfnt_off000069e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69E1 18576 bytes
SHA-256: bdb7eb4b0c987fabfdeddf6ffa08cf8c77719a95579d43b31b6c5264ffa85722

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