Malicious PDF — malware analysis report

Static analysis result for SHA-256 578a2dbc32d3a261…

MALICIOUS

PDF

35.1 KB Created: 2021-06-28 06:43:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 95eec3d192d561668889d47e5aa4356b SHA-1: d9014f7bfb8418037075652369adf27de674a193 SHA-256: 578a2dbc32d3a26183ba914e35806ef5e81f8abf1f763d5535d1af8ad5a0cc91
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/how-to-get-free-robux-ipad-2021-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/speed-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/officialrobuxhack-updated_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spins-2021-apk_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-no-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coins_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-free-catalog-items-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3189 22128 bytes
SHA-256: 175a4b0d222a5c1824a7a2433c9c227db7fdb592ee1aed8df9647762ad7c4658
font_01_sfnt_off0000620a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620A 19736 bytes
SHA-256: 68870904d24ac140a9104b4673594d225c383e34c03e1c2390f7f5e4d5371999

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