Malicious PDF — malware analysis report

Static analysis result for SHA-256 4359b085b81a303a…

MALICIOUS

PDF

44.1 KB Created: 2021-06-04 03:52:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 66d511cd9955d62418a1895bb6f1443e SHA-1: d9a823fc35472be1a72e7128ea7bc9113a9b5c66 SHA-256: 4359b085b81a303a45aa22269bf8cdb6585061311d071d167111b6ee16550d5f
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/431946152/free-roblox-hack-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/hack-coin-master-online_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-hackhub-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/earn-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/easy-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-400-spins-coin-master_GM406889139.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_off00005203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5203 24248 bytes
SHA-256: 387a8bad1c40f81b31ad7daf1662439d034de161827b6a273d7eea0f3c22d692
font_01_sfnt_off0000897d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x897D 18344 bytes
SHA-256: 9d921b2eee93f33e2efc5c53c848117e08d630d06cf868d7193b51dd4894dd93

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