Malicious PDF — malware analysis report

Static analysis result for SHA-256 b00f204bb4809a26…

MALICIOUS

PDF

35.5 KB Created: 2021-06-26 00:46:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3c24d666f168c7fd2b86b7fc095d1300 SHA-1: 7c2f71a6bf32f54171f6317fb889a0842cc1ea8f SHA-256: b00f204bb4809a265742f07c05da0db40038387dcc050c721d6cf702b4ba185f
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 0.9980

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.co/app/431946152/free-robux-2021-no-human-verification-or-survey-game-hack PDF link annotation
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-link_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-hack-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-hack-coin-master-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/robux-hack-inspect_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-exe-download-free_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-100-spin-slot_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/card-hack-in-coin-master_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000322f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x322F 21928 bytes
SHA-256: 518493b54080692b90af3a2e01dfd7333bb26de10ea2a861092dabc4b9190762
font_01_sfnt_off000062e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E7 20028 bytes
SHA-256: 81d472041e36fbeb4367df3d6cbd472f3a978288fc6e9d955e7a92df8ff34bac

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