Malicious PDF — malware analysis report

Static analysis result for SHA-256 342db001aad10860…

MALICIOUS

PDF

45.4 KB Created: 2021-05-15 01:55:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3e99c5a782e8e887be234f055b8f6c1f SHA-1: d2ddeb2925f5de35a8588564f45bfc1e84a50d13 SHA-256: 342db001aad1086007e19f4a9f7155a1bb47e7db4fb1b5a177679d10f9816e8f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free game currency or hacks, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the embedded link is a known redirector. While no scripts were explicitly extracted, the PDF structure itself facilitates the redirection, likely to download a second-stage payload.

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-website-game-hack PDF link annotation
    • http://www.lowrange4x4.co.za/images/get-more-robux_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/coin-master-free-attack_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/roblox-generator-com_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-robux-exe_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://www.lowrange4x4.co.za/images/no-scam-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_off00004946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4946 29692 bytes
SHA-256: 9ae86d1be9914f40fc0f083cd9700a48ba26bd2752b7f9ac2ae85f61e2f7b4c4
font_01_sfnt_off00008e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E4F 18600 bytes
SHA-256: ac0d4502235c23175446595a7cf8e817a77a023a22f0524dfc344b6b051bbd29

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