Malicious PDF — malware analysis report

Static analysis result for SHA-256 75d0660cfafd1b2f…

MALICIOUS

PDF

45.2 KB Created: 2021-05-10 18:01:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 97978df4a1e2c11ea3230f3dee5cce67 SHA-1: 21b8e40636498d6a56a9f4a8ad75030d8b67f1d7 SHA-256: 75d0660cfafd1b2f3c0bd8c2bce0d57f7a399786326c3475c1913f033b0a2e9c
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 0.9940

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 https://netcdn.xyz/app/431946152/free-robux-mobile-game-hack PDF link annotation
    • http://learningarabic.co.uk/images/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-unlimited-spin-apk-free-download_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/robloxbux-us-generator_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46FC 27024 bytes
SHA-256: f1d60ec4ce012589e6f4d043b5c8b97a2afd4e5fde5e6e06088637789b95e56a
font_01_sfnt_off00008402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8402 2912 bytes
SHA-256: 8af6d914c59fa7f627ca8e4543aa20fc7970f713221bba848fe5b17e34f5dad7
font_02_sfnt_off00008e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0B 18404 bytes
SHA-256: 0c312729e80e6e0ca2ee9f4904992f86151ccd5d23fc73e43cbe09e8497f8a48

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