Malicious PDF — malware analysis report

Static analysis result for SHA-256 c66aeef983614db4…

MALICIOUS

PDF

33.6 KB Created: 2021-06-18 07:32:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 84587b837b724d8904bb450e61bc40e9 SHA-1: ca81e91f25ba27445e110f7f894963d53b62d7e6 SHA-256: c66aeef983614db4dec475c2f5ca528aec5187522eae6c2fc5c1f2e648dfd25d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of offering free game-related items or hacks to entice users. The embedded link, http://netcdn.co/app/431946152/dantdm-roblox-free-account-pro-game-hack, redirects to a malicious site, likely to deliver a secondary payload or phish for credentials. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/dantdm-roblox-free-account-pro-game-hack PDF link annotation
    • https://lms.mabbaca.com/__statics/gudangsoal/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-robux-live_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-roblox-giftcards-not-used-100-80_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-robux-pro-tv_GM431946152.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • https://lms.mabbaca.com/__statics/gudangsoal/files/free-robux-generator-2021-no-survey_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_off00002bd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD5 22116 bytes
SHA-256: ee7af8837715959f0393f9e76f53d622528d330b5320c51745ab7739b1213bc8
font_01_sfnt_off00005cde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CDE 19652 bytes
SHA-256: 763f77ef12551017d7c8c5a5142bdf2a77a9dd3ae65b923ad14b6bf2d2fffd03

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