Malicious PDF — malware analysis report

Static analysis result for SHA-256 12ce5a9deb33748c…

MALICIOUS

PDF

33.6 KB Created: 2021-06-20 13:11:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b82bd641bc1a91c99ff8344fe9f6f067 SHA-1: 03732c9b374f4e62bd461c2d3126a805da6dac70 SHA-256: 12ce5a9deb33748c2b65d647d085988a149b88c9a17a37a298efb866da88f5d7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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-free-robux-group-funds-game-hack PDF link annotation
    • http://ipdrs.org/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/getrobux-info_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/bux-gg-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-email-free-spins_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://ipdrs.org/images/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/tiktok-free-view-quest_GM835599320.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-images_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_off00002cf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF5 21980 bytes
SHA-256: e97134371bbb71b81bb9e6aacb544f98845cd74ebefe760603200ad599faaf6b
font_01_sfnt_off00005db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB2 19140 bytes
SHA-256: 5371e48937b96deec695a4df44e4de8682d03220268f2ce433136875a75cfb4e

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