Malicious PDF — malware analysis report

Static analysis result for SHA-256 8415a78244b32925…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 07:54:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ccea4d4fb9dc266804217ab9ef83c2b0 SHA-1: 6a8e1e0377e87491d11e0b826220379152221f97 SHA-256: 8415a78244b32925bc0f6d1f3220f4f48301a6254c07f827383a87d2239a55b3
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.tw/app/431946152/ways-to-get-free-robux-2021-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/roblox-data-breach_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-gift-cards-codes-by-inspect_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/cheat-codes-roblox-mad-city_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-copy-and-paste-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-today-youtube_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-protosmasher-free_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-and-cheat-engine_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/why-can-i-not-hack-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-as-a-kid_GM431946152.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_off00002e48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E48 21860 bytes
SHA-256: 6600393394de0dc5a002b549319dc27f58022159309c3e99ec480e319c9dc6b0
font_01_sfnt_off00005e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3F 19600 bytes
SHA-256: c00d54827bcee88cdbe96b013b7ed3ba2b531ed1e4e5548e429b871c3375097c

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