Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce259fe3a69feee9…

MALICIOUS

PDF

33.9 KB Created: 2021-06-28 07:53:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 10269b25158116a3cfcbd9cd24f0f247 SHA-1: 522513948730083267fc0f663f561cb634683451 SHA-256: ce259fe3a69feee916fbf99cca0deded7a0bf42fffc1c367b0f4cb8ddd236536
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-free-models-game-hack PDF link annotation
    • http://perpustakaan.poltekom.ac.id/repository/is-the-game-robux-hacked_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-robux-hack-on-computer_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-vip-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/spam-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-to-hack-roblox-using-python_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/oprewards-com-login_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/izuku-midoriya-roblox-free-shop-t-schirts_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/roblox-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/room-roblox-cheats_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_off00002df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DF5 22232 bytes
SHA-256: 453097a2b3575a26550c43afb5505b45005f76ced010094067427ad7406034b1
font_01_sfnt_off00005f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F99 19020 bytes
SHA-256: 1b598ccfeb588c2751fdfa1bda46444779bdb133af401acc35bca94fed5912af

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