Malicious PDF — malware analysis report

Static analysis result for SHA-256 504eeaf53cbd3ec5…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 05:15:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 14a160f26c834e7c8b6670794a53e915 SHA-1: 42a560cb5f51b45dc162bb1b79f5cc9c3ecea13f SHA-256: 504eeaf53cbd3ec5fa899b9f3389dcc015fbe2b565b2310ae73fe076dd1873eb
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/free-robux-mac-download-game-hack PDF link annotation
    • http://digilib.akbidarrahma.ac.id/repository/flee-the-facility-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/robux-survey_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-cheat-engine-high-jump_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-cheat-wizard-life_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-robux-page_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/free-robux-group-funds-bot_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/download-roblox-robux-hack-free_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/roblox-cheat-engine-framed-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akbidarrahma.ac.id/repository/coin-master-hack-online-generator_GM406889139.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_off00002f50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F50 21984 bytes
SHA-256: 37851a1f6c60a4e8a9f0ac0f99ccc973092e9b8e952b878f899e900fe5d3124c
font_01_sfnt_off00006024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6024 19492 bytes
SHA-256: eca8554564b68242a657d1bca03518fdb0b7d8a92d7aa6f95e636c237b8d6453

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