PDF static analysis report

Static analysis result for SHA-256 191b89fb698cc976…

SUSPICIOUS

PDF

44.3 KB Created: 2021-06-08 20:55:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 28f745591a20ead7426fbfe703e49ae8 SHA-1: d5ae59bca411fae80e41600be728d05f513c4f8e SHA-256: 191b89fb698cc976ae4a82abaa2d6f5e296333fb6b42e0319bbe2b8d01109c92
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a heuristic indicating an external URI and an embedded URL, specifically pointing to a URL associated with 'free robux game hack'. The document body, though heavily obfuscated, contains text fragments related to 'Fidget Knot Free Robux' and the same URL. This suggests the document is designed as a lure to trick users into downloading potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/fidget-knot-free-robux-game-hack PDF link annotation
    • https://opac.heritagejkt.org//repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-cards_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/level-coin_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-coin-master-cards_GM406889139.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_004_off00005126.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5126 24540 bytes
SHA-256: 504502dfad0c77487b6d94078d01b33271112df90a00c34963bd9ad4c9fde900
font_01_sfnt_off0000894b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x894B 18700 bytes
SHA-256: 25c08440e56b229813288be288dda9b53ed44e535f1403e7dba3c2f2a5218815

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