Malicious PDF — malware analysis report

Static analysis result for SHA-256 476013d786fca787…

MALICIOUS

PDF

44.1 KB Created: 2020-08-12 22:42:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0416ea8931685e06421f63f4cb17cba SHA-1: 9dc1aa845ce6074e4f3e949273f342d1ed232031 SHA-256: 476013d786fca78747ca45de91c6e221382dc390bde92bc0d6e197542854f98f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The ML classifier strongly indicates maliciousness, and the presence of a redirector URL suggests an attempt to obscure the final destination, likely a phishing page or malware download site. The document body, though heavily obfuscated, contains the malicious redirector URL and benign-looking PDF filenames, reinforcing the lure.

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.cc/pify?keyword=anti+aesthetic+hal+foster+pdf In PDF document text
    • http://files.myweeklygrind.com/uploads/1/3/1/4/131408203/pegidusidiguwodano.pdfIn PDF document text
    • http://files.ricoricarecords.com/uploads/1/3/1/4/131410747/5f861b4.pdfIn PDF document text
    • http://files.revdenisetracy.com/uploads/1/3/0/9/130969206/remimarabibidaxif.pdfIn PDF document text
    • http://files.dhbenitez.com/uploads/1/3/1/4/131438808/vofiparikazup_kakaxuporapok_kezenabiv.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/1/0430/8759/3632/files/50435207446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6924/3553/files/jakozovulagufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4340/4441/files/kiketetuxofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5266/files/94790793949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8014/7359/files/delelufemogedumiwuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3532/0742/files/25747943087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9983/2995/files/rakufozir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70278744099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9268/7528/files/lenofanokojojipem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/nusavemukolijekudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7218161301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1057/1940/files/mapa_municipios_madrid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/wedozagojavarolopewor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2004/9822/files/54456126190.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 6

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_off00006ad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD5 5232 bytes
SHA-256: 817de569a60aedd7e21581d4d8448287e8c13011aa3ffa184e4f77e162643384
font_01_sfnt_off00007c8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8E 12236 bytes
SHA-256: 40c0295c6d5b681a5ed17cfde77d8e3bf3cf452c8d77f2cc8203764c688f4be9

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