Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2d75f9e0ca04719…

MALICIOUS

PDF

44.1 KB Created: 2021-06-03 14:46:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9133788520932c6271c86ca58899a1f1 SHA-1: e6b1bb247cb854172d165734f4d144184e98793a SHA-256: b2d75f9e0ca0471954dda251800f488641704992a20e5716f18def15ddf6f4ca
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/is-minecraft-java-free-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-minecraft-com_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/open-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/pokemon-go-free-stardust_GM1094591345.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/www-rbx-com_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-hack-a-minecraft-account_GM479516143.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_004_off000050eb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50EB 25748 bytes
SHA-256: 39030bd60efe184110f2f41266a64e66817b242fc6098b50c29e394d3c8d8abb
font_01_sfnt_off00008b1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B1F 17848 bytes
SHA-256: 977a5a3176a426c4d5ca0eba59ff37fbe42280aface958f6b225cf1a5dff4e82

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