Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9af24156662b4f7…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 22:18:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 482d1a8b629b145040a5dbb2c1c10b80 SHA-1: 6bd839ee9075f7a7e534da64d24cf74337e93a8a SHA-256: e9af24156662b4f7a95d36eb9abe8740ea96f422733c5a8e3d0e61d87c7014d6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a common lure by presenting itself as a 'game hack' or 'free generator' to trick users into clicking embedded links. The primary link, http://netcdn.tw/app/406889139/cm-daily-spins-game-hack, likely leads to a malicious download or exploit. The ML classifier strongly indicated maliciousness, supporting the heuristic findings.

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/406889139/cm-daily-spins-game-hack PDF link annotation
    • http://www.pspmrsmkkb.com/webopac/repository/cheat-pour-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-glitch-2021-august-25_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/my-account-has-been-hacked-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-change-your-username-on-roblox-free-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-piano-hack-comment-faire_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/hack-tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-no-human-verification-no-email_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-get-free-bucks-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-no-offers-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-3-letter-names-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/how-to-get-free-premium-roblox_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_off00003241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3241 23228 bytes
SHA-256: 99c31039e63cd0245e5113aba9319f6d2aeef2ea4a38e99847853776e639da08
font_01_sfnt_off0000666d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x666D 18444 bytes
SHA-256: 9310a5a671c6c896b8e6899ee968499b259e9e83afd9056ee0dbc4eed4bf4d40

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