Malicious PDF — malware analysis report

Static analysis result for SHA-256 60054076175868fa…

MALICIOUS

PDF

38.4 KB Created: 2020-05-13 02:46:39 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 1b076c77ec1d35a1054599025a1f4402 SHA-1: 7a70f94e7634d983f4d3879a7e4e3aa3ae2a6dbc SHA-256: 60054076175868fa96b54b8c306e103f7dedee669e8a236612d7728076322d3e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded URLs, many of which point to similarly structured paths on different domains. This pattern is indicative of a link farm or SEO manipulation scheme, potentially used to host malicious content or distribute malware. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a harmful intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ladydnd.com/uploads/1/3/1/1/131164319/131164319.html#genesys+fantasy+character+sheet
    • http://crosslinks-journey.com/uploads/1/3/0/3/130313536/xiraludefekamo.pdf
    • http://ibrowslabap.com/uploads/1/3/0/5/130588940/ac2b349326301.pdf
    • http://yoojiinpark.com/uploads/1/3/0/7/130776603/vagukalewider.pdf
    • http://sharpereco.com/uploads/1/3/0/5/130551441/pomagezumugulixala.pdf
    • http://cannapetmedz.com/uploads/1/3/0/6/130620249/7dab8.pdf
    • http://luckyrabbiteditions.com/uploads/1/3/0/3/130379681/muzedano.pdf
    • http://lymeliteclothing.com/uploads/1/3/0/5/130544385/fa1d8.pdf
    • http://fjordstyling.com/uploads/1/3/0/5/130545173/9169899.pdf
    • http://samanthafucile.com/uploads/1/3/0/4/130483390/754804e196ac15.pdf
    • http://jasonwilsonart.com/uploads/1/3/1/3/131381756/aee058a.pdf
    • http://dashacademy.com/uploads/1/3/0/4/130435922/3151977.pdf
    • http://move4health.net/uploads/1/3/0/8/130874286/ce48790437.pdf
    • http://daniellerosenorton.com/uploads/1/3/0/7/130739747/2494599.pdf
    • http://theracingvoice.com/uploads/1/3/0/4/130490808/kutelofuzivaf.pdf
    • http://sinuloginsouthflorida.org/uploads/1/3/0/6/130639995/dujawubusuwe_dufuzunifigasa.pdf
    • http://rigtechlifting.com/uploads/1/3/0/2/130270982/bf50f452b.pdf
    • http://aikenkraft.com/uploads/1/3/1/4/131408100/kofudumelopetenoj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c29.bin
541006f654924d1b85428c9aec997debd18ad99b03aaf8feb4e064f342c4b1e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C29 10056 bytes

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