Malicious PDF — malware analysis report

Static analysis result for SHA-256 345c3debd66c1abf…

MALICIOUS

PDF

33.5 KB Created: 2021-06-28 20:34:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a220396e8fd65a2b93a13ef2d4ee5af3 SHA-1: aa17d35d3ba64334389244cd70ba24925c426e8c SHA-256: 345c3debd66c1abfbb11c8cb4830d48059772188c3484af2ad5340b1b5b36ee9
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.co/app/431946152/roblox-ro-ghoul-hack-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/cheat-codes-for-roblox-skywar-words_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-robux-without-subscribing_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-coins-and-spins-group_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-robux-trong-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.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/hacking-doomspire-brickbattle-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-codes-2021-multiple-people-can-use_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-knives-in-assassin-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/caillou-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/allsmo-free-tiktok-and-instagram_GM835599320.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/is-minecraft-free-on-switch_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
font_00_sfnt_off00002db8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB8 21856 bytes
SHA-256: da4054b642e2218091144d27c657518a4dc253e183c18e99b56b488e701731cc
font_01_sfnt_off00005e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E25 18964 bytes
SHA-256: 918790e037019115abcdb8b10de7c7792c18ad98ecbeccfcae5bd4c98dcc97b8

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