Malicious PDF — malware analysis report

Static analysis result for SHA-256 602c92435f95a012…

MALICIOUS

PDF

44.8 KB Created: 2021-06-03 22:50:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4cc8195d64ff08a2fccfee8524783acf SHA-1: ca156036b417a74c88d600adaa2f413f72f12fe4 SHA-256: 602c92435f95a012185c5eaa8be48e193adbfa2254380a9f4fc3a2c3c3148cea
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 0.9865

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 https://netcdn.online/app/835599320/free-tiktok-accounts-and-passwords-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hacked-roblox-faces-id_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/claim-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-spins-link-download-today_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-games_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
stream_004_off00004e81.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E81 26824 bytes
SHA-256: 6cc464f4b0ba4b3834e920a49421a7744f5e525963800bd75d80ad577c8e2364
font_01_sfnt_off00008ca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CA7 18316 bytes
SHA-256: bbd6b533d869a7a089323291600526adae2a42e90d5e0cf5c01053f7505e7d8b

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