Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dd1ebb0bc533bbb…

MALICIOUS

PDF

42.3 KB Created: 2021-05-14 17:15:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: bb2d4ad0f91408355465d1cf384e9ea4 SHA-1: 01bb81a2d7069dcbadff1b730fe9b1d89edea7d8 SHA-256: 7dd1ebb0bc533bbbee58c923ad08356e5027e21d817b7402d72912688329cda5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' to lure victims. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-robux-game-hack In PDF document text
    • http://peche-madagascar.com/images/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • http://peche-madagascar.com/images/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://peche-madagascar.com/images/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/my-robux_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://peche-madagascar.com/images/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://peche-madagascar.com/images/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://peche-madagascar.com/images/free-robux-discord_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_off00004934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4934 25568 bytes
SHA-256: 1adec693adc7a555466f64a458e3ee55f9b36cbdf6a190a9852c41c06c671853
font_01_sfnt_off000082fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82FC 18248 bytes
SHA-256: 9805bb7d0eadd4beaac6fd3b5d5d8b6e8e5d33c97ce909732e364f826719e5d2

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