Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a4e96de39da8d0f…

MALICIOUS

PDF

49.0 KB Created: 2021-05-20 01:46:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 563fc324aed7d55f56ef59bd5d66c87b SHA-1: e7e7666f044b58a41c89b69ad0f6e845721246d0 SHA-256: 3a4e96de39da8d0fc9a64afb0913afd12a4fd6ff4359da8f0df15a90b502f7a4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a game hack generator lure. The embedded URL, 'https://netcdn.xyz/app/406889139/archery-master-3d-hack-unlimited-coins-cheats-game-hack', is likely part of a phishing or scam campaign. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8642

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.xyz/app/406889139/archery-master-3d-hack-unlimited-coins-cheats-game-hack PDF link annotation
    • http://huananhai.net/images/tiktok-free-98_GM835599320.pdfIn PDF document text
    • http://huananhai.net/images/hack-coin-pro-coin-master_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://huananhai.net/images/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/coin-master-cheats-free_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://huananhai.net/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://huananhai.net/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://huananhai.net/images/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://huananhai.net/images/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://huananhai.net/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://huananhai.net/images/how-to-hack-coins-in-archery-master-3d_GM406889139.pdfIn PDF document text
    • http://huananhai.net/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://huananhai.net/images/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://huananhai.net/images/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004911.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4911 25228 bytes
SHA-256: 300fcffd933f6394b0831dbea969aba7bb136db029ed24d68bbe5b310979648a
font_01_sfnt_off00008350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8350 4028 bytes
SHA-256: a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91
font_02_sfnt_off000090f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90F1 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off00009ae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AE1 18928 bytes
SHA-256: e4446fb8917a5d541b4c62e11a4e73ebabb77927bfa37d18c91cbf5918b93b3d

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