PDF static analysis report

Static analysis result for SHA-256 025842f76d4cda39…

SUSPICIOUS

PDF

30.5 KB Created: 2021-07-19 04:21:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 858fe438d7e81cf2fc26baf79179530b SHA-1: 8be62e9d1f8d21106086f90676438f10fe00a555 SHA-256: 025842f76d4cda3967787fcad28ed81153c74568c9e7d59ce733be7c8b0012a8
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs and a prominent call-to-action related to obtaining free Robux, a virtual currency. The ML classifier also flagged this PDF as malicious with high confidence. The primary URL, http://netcdn.tw/app/431946152/rbx-free-robux-game-hack, likely hosts a payload or further redirection. The document's content and structure strongly suggest a phishing or social engineering attempt to trick users into downloading potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9909

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/rbx-free-robux-game-hack PDF link annotation
    • http://www.adravietnam.org/images/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.adravietnam.org/images/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://adravietnam.org/images/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://adravietnam.org/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://www.adravietnam.org/images/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • http://www.adravietnam.org/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://adravietnam.org/images/robux-free-c_GM431946152.pdfIn PDF document text
    • http://adravietnam.org/images/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://adravietnam.org/images/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.adravietnam.org/images/minecraft-launcher-free_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_off00002522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2522 21836 bytes
SHA-256: f0844f07398d48b5e0d0c582ff558e723c1fa6e71356ba87b724c395ba3c6dce
font_01_sfnt_off0000556d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x556D 18200 bytes
SHA-256: ddd37c3b2fa686acce6c2a3c2ceddf9a56a39c36e5e1dfb8773daba355b1b632

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