Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd5be29d9bee670…

MALICIOUS

PDF

47.2 KB Created: 2021-06-03 12:28:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 2cb0513dc1d525a4ccf62911675f9e91 SHA-1: 779406a793e905c74b12ee035415a838fd683e5d SHA-256: 9dd5be29d9bee6701a1ac9ae5f264718045dbfb2a4036cf58b10fe296d811886
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that offer game hacks and generators, indicating a lure for potentially unwanted or malicious software downloads. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the presence of numerous game-related lures and the high ML score suggest a malicious intent to trick users into visiting these sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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/479516143/minecraft-apk-114-4-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id/repository/free-robux-place_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/get-robux-com_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-daily-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-apk-with-fb-login-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/likes-for-tiktok-free_GM835599320.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052ac.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52AC 25484 bytes
SHA-256: bf4da4dcc91b7a1fee6f91ae676d10335efc9da6db942082532b6a66000aa7e8
font_01_sfnt_off00008c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C50 3128 bytes
SHA-256: e72d8d1e26c87a5aea965968b922732c7406bc33888678dc3a8c04cb95b3c770
font_02_sfnt_off00009690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9690 18080 bytes
SHA-256: 4c1e78b8fce618491ae13f8e5f5f936a429c499834c15c47553c4b43aa5ca423

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