Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b0f06c2ede5399e…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 15:52:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d446a1b2cb0bbe73176e11f9c39a7a39 SHA-1: 4366dba81268bb15b71e38c48ffb7909edfc5d0e SHA-256: 3b0f06c2ede5399ea90ec0424ef9f867258d325d0d4b3afc1224e43403062d0d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites that promise game hacks and free currency, indicating a lure for users to download potentially malicious content or visit phishing sites. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous game-related lures reinforces this assessment. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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-hack-no-verification-game-hack PDF link annotation
    • http://www.pspmrsmkkb.com/webopac/repository/proxy-roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/easy-hack-to-get-robux-and-not-long_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-hack-pc-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-download-roblox-infinite-jump-real_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/can-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-with-offers_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-adopt-me-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-real-roblox-credit-card-numbers_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/pubg-uc-redeem-code-generator_GM1330123889.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-roblox-accounts-2021-august_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/comptes-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkkb.com/webopac/repository/free-robux-giveaway_GM431946152.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_off000030e7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30E7 22576 bytes
SHA-256: afa350d525a7b3af767fc32f46ad77e40a0c9d49e4c14cbfa96c7297e95255ec
font_01_sfnt_off00006362.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6362 18140 bytes
SHA-256: 584bd634a741abf14746247beb71184038551534d821baf642793c5d967f1edd

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