Malicious PDF — malware analysis report

Static analysis result for SHA-256 47169bda4717002e…

MALICIOUS

PDF

35.5 KB Created: 2021-06-26 07:08:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c5a754502846cafc2cf3e1286b63e92a SHA-1: abc3870f46c626c378543512351746965cdd68d6 SHA-256: 47169bda4717002e78017e8c99414985d06649933e72e729a76cda8f6163d8cf
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/earn-free-robux-website-game-hack PDF link annotation
    • http://muslib.unmus.ac.id//repository/tiktok-free-view-jio-phone_GM835599320.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/pokemon-go-free-download-version_GM1094591345.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/can-you-make-gamepasses-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-protosmasher-free-download_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/como-conseguir-robux-gratis-en-roblox-2021-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-mania-com-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-pe-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/get-1-robux-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-hack-minigame-testing-place-on-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-robux-downloading-apps_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/minecraft-java-free-trial_GM479516143.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_off000031f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F4 22888 bytes
SHA-256: a7e9678731b0d3a11e04f246260b83a473495bc973434df4426bd183f0eb0f53
font_01_sfnt_off0000656e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656E 19136 bytes
SHA-256: 6e1c21e6704019cc35f83e3762b6283ce00a6d01d3f646bf8d77284d38dd9f10

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