Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c53b2ee1a7c41e6…

MALICIOUS

PDF

34.8 KB Created: 2021-07-08 11:24:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2e14e9a60d58efef3148f839d55ddac7 SHA-1: 53b18117d7d711a7daf8602ef771076fccc4874d SHA-256: 0c53b2ee1a7c41e6b49f3d6f651646d88f67ae7fbc6f88b793cd6b9f8032f8d7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a prominent link disguised as a 'free generator / game hack' lure. The link, http://netcdn.tw/app/406889139/get-free-spins-for-coin-master-game-hack, redirects to a malicious domain. The ML classifier strongly indicates maliciousness, and the overall pattern suggests a phishing attempt to trick users into visiting a potentially harmful site.

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/get-free-spins-for-coin-master-game-hack PDF link annotation
    • http://library.umuslim.ac.id/repository/roblox-tycoon-simulator-hack_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-cheat-codes-free_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-robux-if-join-group_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/does-cheat-engine-wk-on-roblox-any-more_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-no-wat_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-robux-1-pastebin-com_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/epic-game-free-liggiy-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-coin-master-spins-links-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/do-you-get-windows-10-minecraft-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-promocode-roblox-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-2021-by-batu_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/como-descargar-hacks-para-roblox-booga-booga_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_002_off00003194.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3194 23104 bytes
SHA-256: b8f719101e5e2bc4e4c914a891963131640cb59638361ecc223c4354ecd0ce38
font_01_sfnt_off00006589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6589 18176 bytes
SHA-256: 76bfdde0d1dbaff2503b84320f04347c0e27e5afe98e240136eaf8f884d81ceb

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