Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2d04bf6e52768c0…

MALICIOUS

PDF

41.0 KB Created: 2020-08-12 08:15:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d7c3e3caccedadf9dae6cd8b355b4a73 SHA-1: 2794cc60ec4b270fd619e427ea8d4e35fc552eec SHA-256: d2d04bf6e52768c0b85a4d538085f119cde4324bb56b9314b2a349c2d82f4dd8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The primary attack pattern observed is the redirection of users to malicious infrastructure via these embedded links, likely as part of a phishing or malware distribution scheme.

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/wb?keyword=introduction%20inventory%20control%20system.pdf In PDF document text
    • http://files.ryansjewelryshop.com/uploads/1/3/1/8/131857334/babesumuxetodabuj.pdfIn PDF document text
    • http://files.noemiddleschool.net/uploads/1/3/0/9/130968933/kurak-dukamosipawil-zabixijituvavi-xogokuvuluneni.pdfIn PDF document text
    • http://files.unswconsultingclub.com/uploads/1/3/1/6/131606289/a22ac.pdfIn PDF document text
    • http://zodele.triathlonmalta.org/uploads/1/3/1/6/131606289/luxamigobu-bukibega-godalix-widowala.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/1/0430/9182/0695/files/dukinajizutupogerupelil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1336/4121/files/43476045448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1886/0190/files/97406473743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4942/6845/files/walagematile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/rental_agreement_forms_florida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9444/0104/files/aerial_yoga_poses_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6430/3516/files/vewotuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2796/9686/files/84990631047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2696/3865/files/79420250431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5690/5885/files/59809537134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3552/5282/files/27798501499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5622/5688/files/katufon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2970/7422/files/nujubotajefi.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_off00006444.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6444 5220 bytes
SHA-256: d071fa671e95f362e55c291aeafe428e1ec4edbbb3c57973bd9b4a3c1f644621
font_01_sfnt_off00007602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7602 9660 bytes
SHA-256: ce3cb6623c536ec62856bce09fdce525affcf9cfe36030072f993170376710b3

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