Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02da4048d469cbe…

MALICIOUS

PDF

33.1 KB Created: 2021-06-30 23:36:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b8e0efaeee9bb94fbd9fe5dc823b60f7 SHA-1: ad4d55911d81fa0bcee4a1daa99f2eae3086dabb SHA-256: c02da4048d469cbe1cea8288c3f1fbfba542881b4a18a3dbd2df7d98ef6cdcc3
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-play-now-for-free-online-game-hack PDF link annotation
    • http://library.ft.upnvj.ac.id/repository/free-robux-hack-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/blackberry-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/pokemon-go-free-download-game_GM1094591345.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-free-coins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/roblox-super-hacks-2021_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/how-to-get-free-roblox-gear-2021_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/get-robux-today_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/como-tener-cosas-gratis-en-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-roblox-cards-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/is-tiktok-free-on-ipad_GM835599320.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/how-to-get-free-robux-2021-hack-no-subscribing_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-items-code-on-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/hack-de-controlar-a-la-gente-roblox_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/win-free-robux_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D6F 21272 bytes
SHA-256: 96dd9e8046a9c16c5752a3fc5e70ef6a4839e42559b9b7495b678754cec073f6
font_01_sfnt_off00005b9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9C 19268 bytes
SHA-256: b53033a3490edb6e2108da39242a50f1bd75b2a1649b083fb8f96d2e40891a30

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