Malicious PDF — malware analysis report

Static analysis result for SHA-256 84f487702c73b2a0…

MALICIOUS

PDF

38.7 KB Created: 2021-05-11 17:35:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 888b77f32cf2533aabea9b5f4a52e342 SHA-1: 9637267bb8c846768a30abc8d1eb4cefa0f84666 SHA-256: 84f487702c73b2a025e620bc98fa034ca343ab4d2ad57c45f7eb044974636223
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://netcdn.xyz/app/479516143/wurst-1.15-2-game-hack'. Additionally, a visual download button lure was detected, suggesting a social engineering attempt to trick the user into clicking the malicious link. The document body contains obfuscated text and references to 'Wurst 1.15 2', which may be related to a game hack or exploit, further supporting a malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/479516143/wurst-1.15-2-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000034c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34C7 24848 bytes
SHA-256: 7048cdd1e9ff7fd3cf3f663e783537652dbe44d40c82397f6441d06be4e158f4
font_01_sfnt_off00006c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4D 3128 bytes
SHA-256: 801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
font_02_sfnt_off0000768c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x768C 17988 bytes
SHA-256: 94ec895cad4eeca7e3e8945795636ab9bfa2b0222484f596d6ff7da1964e26b2

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