Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ce2da9a8661a592…

MALICIOUS

PDF

34.0 KB Created: 2021-07-05 13:01:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0e595f6bf571b3a128da3556eee09c45 SHA-1: e7cca045db036558b9303bebdfd75b1bc4b5151a SHA-256: 2ce2da9a8661a5929c4fc2685b290ce71bb90d95fe3f0937e612fd20f987fcd3
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.tw/app/431946152/promo-codes-for-free-robux-game-hack PDF link annotation
    • https://elibrary.ikhac.ac.id/repository/roblox-free-shirts-template_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-teleport-in-free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-how-to-make-badges-for-free_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-buy-things-in-game-for-free_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-get-free-robux-2021-2021-patched_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-roblox-accounts-with-limiteds_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-server-side-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/commande-lua-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-paintball-by-daxter33-level-hack_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/how-to-join-me-free-builder-club-in-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/roblox-name-hack_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-bundle-roblox_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/free-roblox-codes-that-nobody-have-havent-used-yet_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/what-will-happen-if-you-hack-for-robux_GM431946152.pdfIn PDF document text
    • https://elibrary.ikhac.ac.id/repository/actual-free-robux_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_off00002e82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E82 22076 bytes
SHA-256: 5ef49ff96555141e8c2b1d01ea8349216d5399e689a9306136b2dc4c74aaa303
font_01_sfnt_off00005f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F1B 19304 bytes
SHA-256: 8f108eb77a448bab32907087749351f9dfb7449b9cf832684ec1eb90d477be7f

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