Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed3868da4f1355b…

MALICIOUS

PDF

46.1 KB Created: 2021-06-03 08:03:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c87f2627c5a34dd1e189f72ca15dc0f7 SHA-1: eb2e67fe038b33a2f814b0fe8aa68d5c0b305358 SHA-256: 1ed3868da4f1355bb57a9a1255de584fd0988f809aa511bf79009c06694c5723
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 0.9864

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/406889139/coin-master-hack-apk-download-game-hack PDF link annotation
    • http://xenonsvjetla.com/files/free-robux-cards_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-card-collection-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/earn-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/cheats-roblox-meep-city_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/wurst-hacks_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
stream_004_off00005041.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5041 28884 bytes
SHA-256: c9473d02f88e541b4513ec781fb891d8fd360cea69a3ad9ae5520f8c49b6e62d
font_01_sfnt_off00009118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9118 18472 bytes
SHA-256: b10e38fa64fdc7a07425ec3e58abfd5c70461e5a71d6d287eed64148ae58b3d9

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