Malicious PDF — malware analysis report

Static analysis result for SHA-256 15ff3f70d1b7f14c…

MALICIOUS

PDF

43.4 KB Created: 2020-08-06 16:56:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1b93a398588f8405307e3d27228d18bc SHA-1: 1eb6252b68dd367098aba15ee991ae0aec821895 SHA-256: 15ff3f70d1b7f14c194bec3ba8cbf26e91a73de532685cf3bb4c822819f00484
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF contains a large number of embedded links, many of which point to a redirector service. The redirector then directs users to various PDF files hosted on Shopify and other domains, suggesting a link farm designed to distribute malicious content or phish for information. The ML classifier strongly indicated maliciousness, and the presence of a known malicious redirector reinforces this assessment.

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=bretton+woods+institutions+and+africa+pdf In PDF document text
    • http://files.pedagoguepodcast.com/uploads/1/3/2/6/132680813/9569cebbdca725b.pdfIn PDF document text
    • http://files.dp-art-gallery.com/uploads/1/3/2/6/132681438/bofoxo.pdfIn PDF document text
    • http://files.champagnecircle.com/uploads/1/3/1/4/131406321/ca82345d8bfb.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/1/0428/3655/7987/files/zaguworidobetel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/xexosudewuvuxitudivegepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82505274200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5533/3027/files/gosabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/fofizabajibobejuropudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6489/3344/files/bafofadalonararolibina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8363/5619/files/filatemobiroxipej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/rixowimonurini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7948/9946/files/servi_c3_a7os_de_antonio_rigging.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6552/3870/files/jasexixuzetuwikupeguvot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/kuzisobekobadipan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4650/files/85817908982.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 5

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_off00006bb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB9 5260 bytes
SHA-256: c3c8facf1e2db5e2ba2102f20ff87c22ac078ca86f0bb0a1f337f2b1e48db0e9
font_01_sfnt_off00007dc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC1 10156 bytes
SHA-256: 3be8f4a81dff34f9cd2ae995af85b71e8e479a0b9603b5e1506d05296948285d

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