Malicious PDF — malware analysis report

Static analysis result for SHA-256 45751505e17f2629…

MALICIOUS

PDF

48.2 KB Created: 2021-05-10 14:00:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3fac74ce4e84c71b659d596a49ba1ace SHA-1: 808e35d4d7a4188ffe914b3eed1567821e0b09b6 SHA-256: 45751505e17f26293ffb69e9cc69a1d67ad11b1c6c74201605e06746c6a81c65
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, with a primary focus on game hacks and rewards, indicated by heuristics like 'PDF_GAME_HACK_REDIRECT_LURE'. The embedded URL 'https://netcdn.xyz/app/406889139/coin-master-reward-link-2021-game-hack' is likely the destination for malicious content. Although no scripts were explicitly extracted, the nature of the lure suggests a phishing or redirection attack, potentially leading to further malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6961

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/coin-master-reward-link-2021-game-hack PDF link annotation
    • https://www.audipec.com.br/images/minecraft-mod-menu-apk_GM479516143.pdfIn PDF document text
    • https://www.audipec.com.br/images/hack-coin-master-download-ios_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/roblox-download_GM431946152.pdfIn PDF document text
    • https://www.audipec.com.br/images/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/free-roblox-accounts-with-robux_GM431946152.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_off00003dcd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3DCD 28212 bytes
SHA-256: 202eddfccd0a8687b6b2197869cdcbb860344cdbafc8cb0974bad3139e63a740
font_01_sfnt_off00007e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E17 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off000087b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B3 7332 bytes
SHA-256: d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d
font_03_sfnt_off000099cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99CC 18456 bytes
SHA-256: 6040a5d317e0c15c3b91341419c6951bd8a72d731c40e3937b88b452a10d0332