PDF static analysis report

Static analysis result for SHA-256 7c3cf78fff1f569b…

SUSPICIOUS

PDF

35.1 KB Created: 2021-07-19 07:57:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 016d22e2e7c91bd50893aba8fdaa3830 SHA-1: aaf5a1ecd3f42b3e611283556d9a5092efd099cc SHA-256: 7c3cf78fff1f569bdab9ec946bdd807345fa705ee6bd08390cbd439afdbd48ba
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which appear to be lures for game cheats or hacks, such as 'free coins' for Coin Master. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs suggests an attempt to redirect the user to download further content. No scripts were extracted, but the overall pattern indicates a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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/free-coins-coin-master-game-hack PDF link annotation
    • http://dahluniver.ru/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://dahluniver.ru/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://dahluniver.ru/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://dahluniver.ru/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://dahluniver.ru/images/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://dahluniver.ru/images/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://dahluniver.ru/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://dahluniver.ru/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://dahluniver.ru/images/free-robux-for-kids_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
stream_002_off00003636.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3636 22796 bytes
SHA-256: bcd252a1ba566bfd0e9003420a1eb62caba8d0278def6acb55416de7a5ec160f
font_01_sfnt_off00006934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6934 17712 bytes
SHA-256: fd51fa1b849cf95139b510f282bcd47e41e352499df1938c7ca947a320e7b070

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