Malicious PDF — malware analysis report

Static analysis result for SHA-256 12607a96f124651f…

MALICIOUS

PDF

44.7 KB Created: 2021-06-02 08:44:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: fb947e89d1ac4755f4de5042f0ae1f2c SHA-1: 9359882326dd3ea562992364d6ac29306730726b SHA-256: 12607a96f124651f8125b58477b56b214d98a62cb47bb6a65f187072dcfe8859
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links designed to lure users with promises of game hacks, redirecting to malicious infrastructure. The primary link, https://netcdn.xyz/app/431946152/hack-script-roblox-game-hack, is identified as a malicious redirector. The document body and heuristics indicate a social engineering tactic to drive clicks to potentially malicious content, likely a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/hack-script-roblox-game-hack In PDF document text
    • https://kierowcyhgv.uk/images/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/coin-master-free-spins-link-2021-app_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/script-for-pubg-uc-hack_GM1330123889.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/minecraft-online-free-no-download_GM479516143.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/hack-game-plus-com-coin-master_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/roblox-earn_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/free-roblox-groups_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/roblox-re_GM431946152.pdfIn PDF document text
    • https://kierowcyhgv.uk/images/how-can-i-get-free-spins-on-coin-master_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_off00004f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F60 25876 bytes
SHA-256: 77da3d3ce68ce135928535b6a040872a49e110b0d3f178d8039ab8fc8bdb8afc
font_01_sfnt_off00008b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3F 18580 bytes
SHA-256: 0585df04bc12db978cb6ca1d87dc7f4bee0baff9419f8bdc0036564a5ad90d94

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