Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5288362fefadc47…

MALICIOUS

PDF

42.3 KB Created: 2021-05-16 19:01:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 96017d436157aeb477efe275357e0efa SHA-1: 17985220b4d65e58c2abc5889c1cceb626d9e59d SHA-256: e5288362fefadc47d1e66897a721e2cb75cb1f7e0213d4d94cfbae8ca3c6923a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-online-hack-generator-game-hack PDF link annotation
    • http://the-specials.ch/images/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://the-specials.ch/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://the-specials.ch/images/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • http://the-specials.ch/images/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://the-specials.ch/images/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://the-specials.ch/images/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://the-specials.ch/images/coin-master-fun-free-spins_GM406889139.pdfIn PDF document text
    • http://the-specials.ch/images/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://the-specials.ch/images/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://the-specials.ch/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://the-specials.ch/images/coin-master-generator-hack_GM406889139.pdfIn PDF document text
    • http://the-specials.ch/images/free-robux-no-download_GM431946152.pdfIn PDF document text
    • http://the-specials.ch/images/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://the-specials.ch/images/coin-master-hack-online-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • http://the-specials.ch/images/robloxhacks_GM431946152.pdfIn PDF document text
    • http://the-specials.ch/images/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://the-specials.ch/images/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • http://the-specials.ch/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://the-specials.ch/images/getrobux-come_GM431946152.pdfIn PDF document text
    • http://the-specials.ch/images/free-minecraft-wallpaper_GM479516143.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_003_off00004a3a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A3A 25944 bytes
SHA-256: 7ab47dd9328f5a5a70381d945fface1bd4f6508c1f740d9afadf808ec4b4eea1
font_01_sfnt_off00008463.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8463 17788 bytes
SHA-256: ad851a765ea361b6c06a758d3cf3a23c1a0806d07c65aa9d09c455148703e502

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