Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0632a234fc464a1…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 22:52:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 34e38a11b8ad902ae19403b584a82b55 SHA-1: 3b72ffd3a899a0a41eadb076e3611dec1965460e SHA-256: a0632a234fc464a1ad644d8b9760b0772446eb846f1fb3d1ed8542303ea91d28
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise game hacks and free currency, such as 'coin-master-free-spins-no-verification-game-hack'. These links are likely part of a phishing or scam campaign designed to lure users to malicious sites. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a social engineering attack.

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/coin-master-free-spins-no-verification-game-hack PDF link annotation
    • http://library.umla.ac.id//repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-roblox-promo-codes-august-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/tiktok-for-free-movies_GM835599320.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-free-daily-spins-today_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/roblox-free-aimbot_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-heaven_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/cheat-roblox-retail-tycoon-116_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-get-free-wings-in-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/pokemon-go-free-walk-hack_GM1094591345.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-get-robux-with-cheat-engine-63_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-rewards-free-spins_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
stream_002_off0000303a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x303A 22908 bytes
SHA-256: 7a347c46f3f578b76993e7897879494ed9d116a12b2cece01126a4a9ab8ab94a
font_01_sfnt_off000063d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D7 18308 bytes
SHA-256: 42457c8aa36706a76da82de2a9fa58b5f47e8340d8044d1afd54e96084de47f1

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