PDF static analysis report

Static analysis result for SHA-256 efc47aefb1e5a816…

SUSPICIOUS

PDF

34.6 KB Created: 2021-07-25 19:31:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 11ad5d4933828553d582bd9dcfea142c SHA-1: bca9649f8004743ae5f6a2ffc31654f00602ed38 SHA-256: efc47aefb1e5a816361ae43da8a3354add39f2922fcd5ae2a8f1e3efdb6ea5af
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that lure the user with promises of free Robux and game hacks. The primary URL, http://netcdn.tw/app/431946152/free-robux-no-download-game-hack, is likely a landing page for a malicious download. The presence of external URIs and the ML classifier's high confidence score indicate a strong likelihood of malicious intent, possibly involving the download of a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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/431946152/free-robux-no-download-game-hack PDF link annotation
    • http://www.jureclomas.com.ar/images/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://www.jureclomas.com.ar/images/how-to-get-minecraft-for-free-on-mobile_GM479516143.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_off00003021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3021 22716 bytes
SHA-256: aecfc2306b9ca7fbce5b8ee73f7a1202360d9b7f3d4220b916678efad04f637e
font_01_sfnt_off00006304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6304 19008 bytes
SHA-256: 72e3a65839c32bde970c5e9c108b6cdefe5a1e283205e2ba54e9e9ddd761828c

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