Malicious PDF — malware analysis report

Static analysis result for SHA-256 29b9878bc5944815…

MALICIOUS

PDF

43.6 KB Created: 2021-05-13 17:12:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 328097eb47bfaa180bc614bbf8790083 SHA-1: a86a421d2a5bb392bada6f8a7e258d935a875f18 SHA-256: 29b9878bc594481580c0a86057b59a2d31fde395ae37dadbf8400d9ff7850069
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 0.9969

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.xyz/app/479516143/free-minecraft-skins-xbox-one-game-hack PDF link annotation
    • https://www.library.kysm.edu.my/repository/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/game-hunters-coin-master_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/free-links-for-free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/earn-robux_GM431946152.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/free-minecraft-realms-to-join_GM479516143.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/what-is-wurst_GM479516143.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • https://www.library.kysm.edu.my/repository/coin-master-apk-hack-download_GM406889139.pdfIn PDF document text
    • https://library.kysm.edu.my/repository/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_003_off00004cb2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CB2 25780 bytes
SHA-256: f0e2d76f3a748df181c195aa6ae42c19c0a679a3432e0eda3b2f27d7125b0941
font_01_sfnt_off000087c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C0 18476 bytes
SHA-256: 232ed5a85e3eb7365037632e89adcc3de647f06670efb3a8119b1009e47d113e

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