Malicious PDF — malware analysis report

Static analysis result for SHA-256 576650e1a30ff19b…

MALICIOUS

PDF

34.4 KB Created: 2020-09-11 00:48:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e99fd4ae223b6d63d20f7fb85f55255 SHA-1: e1954571618984e80dc2d49fa02d74b76a3f0e7d SHA-256: 576650e1a30ff19bc3a6f1dff8c66ee7cdd1a80aa308fce47257a284e4d67d88
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that points to a known malicious redirector. This indicates the document's primary purpose is to redirect users to potentially harmful websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://ttraff.club/wix?keyword=becky+lynch+theme+song In PDF document text
    • http://files.thesingspace.com/uploads/1/3/2/6/132681479/9359175.pdfIn PDF document text
    • http://files.valhallavalley.com/uploads/1/3/0/9/130969148/3610591.pdfIn PDF document text
    • http://mujoju.mybrainbuildersonlinetutoring.com/uploads/1/3/2/6/132681579/vofikunevufab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5559/5172/files/sarkhan_elkhanzade_san_francisco_bay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kesutuzijakakewinepubad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8627/4967/files/foweturuwojunifav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2823/1830/files/1450998432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4074/3329/files/demag_ac_350_6.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7270/6977/files/il_libro_di_abramelin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3087/9136/files/libros_para_aprender_ingles_avanzado_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0215/7466/files/piteziwepinofaketiwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6938/2568/files/livazaxodulukowobov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3239/3366/files/a_muralha_de_gelo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

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_off00004657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4657 5124 bytes
SHA-256: 92fdc76d539c591916d250d626058169486eb327954e2949c79250d9baf74927
font_01_sfnt_off000057b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57B6 11008 bytes
SHA-256: 958f42ea1a143866c6543e839683baa9f2c956cb71c79d1259a80d8d3aa22417

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