Malicious PDF — malware analysis report

Static analysis result for SHA-256 0730b826723d7e82…

MALICIOUS

PDF

37.8 KB Created: 2021-05-20 18:35:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: de0552b11c97fa288d56889d9b75d469 SHA-1: 30d8a8a45cc9ccae274c5742df8d43504357ec98 SHA-256: 0730b826723d7e82510aa4d7e11f1241802f907f40ccb408ff0b8f2d3d7d8115
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a clear lure for a "Free Robux Generator" and a prominent "CLICK HERE TO ACCESS ROBLOX GENERATOR" call-to-action. It redirects to the malicious URL https://netcdn.xyz/app/431946152/blox.pink-free-robux-game-hack, which is flagged as malicious redirector infrastructure. The ML classifier also strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.xyz/app/431946152/blox.pink-free-robux-game-hack In PDF document text
    • https://www.les-sp.org/images/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • https://www.les-sp.org/images/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://www.les-sp.org/images/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.les-sp.org/images/100-free-spins-for-coin-master_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
font_00_sfnt_off0000348a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x348A 26908 bytes
SHA-256: 71eb2239d06e70eab507dc0fc66d29cd979479d023271c9d7df6dd4c279576da
font_01_sfnt_off000071d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71D1 18620 bytes
SHA-256: 20ad8a2126bb9f489cd4862944fdd8c1c01869fd803457c3ce1390bedb89f69f

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