Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb80c9585c2824d0…

MALICIOUS

PDF

35.0 KB Created: 2021-06-22 18:40:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f2a508a614cc802a9444a720ba122e3b SHA-1: abaf7fea01fd1616642018a41342bc0d87a0e71e SHA-256: cb80c9585c2824d07c3bd97c2222965376953cc4c9f77e4c32a1d0c85d6c4bf3
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/how-to-get-800-robux-for-free-game-hack PDF link annotation
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/draw-it-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/wurst-18-9_GM479516143.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-coins-for-flip-master_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/rbx-robux_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/free-robux-scam-website_GM431946152.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://man2pamekasan.sch.id/__statics/gudangsoal/files/coin-master-free-100-spin_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_off00003103.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3103 22388 bytes
SHA-256: 228ce66b15e2843fb4bb67e2ee5843d8214703ab83538c2b6f462d2467ba25f7
font_01_sfnt_off00006281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6281 19368 bytes
SHA-256: be805ca657918939693b450b7256d01abf85ed37ddec4e2d86a9c4404475f57d

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