Malicious PDF — malware analysis report

Static analysis result for SHA-256 3261fd7e6440c570…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 11:05:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b35ccbe93d083da4a8176cc781d7ba0c SHA-1: 1038e895a9f961701eba9b731cc9f3a4705d46b1 SHA-256: 3261fd7e6440c5708b8f2b77ff25400c97744dfa4779ed3e0597d00cdb3b46c1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a lure related to game hacks, specifically for Roblox. The heuristic firings indicate that the PDF links to a 'free generator / game hack' redirector, suggesting a phishing or malware distribution attempt. While no scripts were extracted, the presence of numerous suspicious URLs and the nature of the lure point towards a malicious intent to trick users into visiting potentially harmful sites.

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/roblox-singing-hack-game-hack PDF link annotation
    • http://suaedy-library.net/repository/how-to-get-free-admin-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/claim-free-robux-game_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-vampire-hunters-2-going-through-walls-hack_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/roblox-mod-hack-apk-download_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/robux-hack_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/como-usar-hacks-en-roblox_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/hack-roblox-2021-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-roblox-hoods_GM431946152.pdfIn PDF document text
    • http://suaedy-library.net/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://suaedy-library.net/repository/how-to-get-free-likes-on-tiktok_GM835599320.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_off00003137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3137 22364 bytes
SHA-256: 46d8d95345647fb00370f8fb0ff1c79e3f2cc756a4badb17011e2b4a11aa9ba7
font_01_sfnt_off000062e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E6 18776 bytes
SHA-256: 085ae8b56e7336c5f4164fbdeb6aaeb14e034baae1ec7bc96d74e44fa5c8d515

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