Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec1c2e14de73b4d9…

MALICIOUS

PDF

34.2 KB Created: 2021-06-27 21:10:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8de8cb7ae892f121edf9d2afde2b174e SHA-1: 5a580854b28f32668055858b8a1e2976338623d7 SHA-256: ec1c2e14de73b4d9d63c0ce4cbe41e26dd7983819d96f5d9c6d383cd0e9979b6
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/pastebin-com-roblox-free-robux-game-hack PDF link annotation
    • https://pustaka.widyakartika.ac.id/repository/heroes-online-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-free-faces-from-events-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/pokemon-go-free-friend-codes_GM1094591345.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-anything-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-hack-peoples-passwords-on-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/code-for-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-mobile-24-com-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/hack-blox-piece-roblox-autofarm_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/hacks-para-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/como-hackear-roblox-para-tener-robux-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/eliot-ring-mig-roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-btools-hack-download_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-hack-in-rake-roblox_GM431946152.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_off00002e42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E42 22224 bytes
SHA-256: 624cb9890ec5d7b7d2be5c1940d292e4290cdee0523efb2708982cf5f64bcfb9
font_01_sfnt_off00005fc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC3 19428 bytes
SHA-256: da4a343a781c54edfbc20c6d47fab65059d22b01b593a16c4e04ec913742ba75

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