Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb1859b043c27535…

MALICIOUS

PDF

42.0 KB Created: 2021-05-18 04:31:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9f4cb894522b152751e90c9344e12197 SHA-1: 6530e916e686e4bd0f1a96193eb247dbd292a24a SHA-256: fb1859b043c2753581b84a1efbf44c089e1a14ea7b6b340a778114c1d8733d33
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded text and a prominent call-to-action to "CLICK HERE TO ACCESS ROBLOX GENERATOR", directly linking to a URL identified as a malicious redirector. This suggests a phishing or scam attempt, likely designed to lead the user to a malicious site or download further malware. While no scripts were explicitly extracted, the PDF structure and malicious link indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0125

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/how-to-hack-someone In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000338d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x338D 26872 bytes
SHA-256: cc7b512a8d5c16e85d4679bd8962b72fc5dfa7c0914bac17447665b907fbff0d
font_01_sfnt_off00007271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7271 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00007f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F83 19316 bytes
SHA-256: 0830f2bc2b032c7ad37be74462a8461862374830fa053aba1852b18e492c5f08

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