Malicious PDF — malware analysis report

Static analysis result for SHA-256 8120a20e482662cc…

MALICIOUS

PDF

76.4 KB Created: 2020-09-16 14:18:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62577c0e8c8316bf87dcd4552abe5c68 SHA-1: a0336e1a44db5236bf9ec41dc47c6d6f8b5fb58f SHA-256: 8120a20e482662cc7a5fbf68ef81775e8c85050b823687ae281c93e420319324
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains hosting other PDFs, and at least one critical link to a known malicious redirector. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, contains the redirector URL, suggesting the primary purpose is to direct users to malicious infrastructure.

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.me/wix?keyword=anakin+solo+is+kylo+ren In PDF document text
    • http://files.nicolaforemanquilts.com/uploads/1/3/1/0/131070904/9419489.pdfIn PDF document text
    • http://dajiseril.stewartislandnews.com/uploads/1/3/0/7/130740257/f9a97a9679ed30b.pdfIn PDF document text
    • http://norafiniw.dustybootraveler.com/uploads/1/3/1/6/131606233/sanovidatagezi-wigeliwowaguto-menezit.pdfIn PDF document text
    • http://files.sledgedistillery.com/uploads/1/3/1/1/131163599/datusuvabafevumonagu.pdfIn PDF document text
    • http://wavena.design59.com/uploads/1/3/0/8/130874426/b0c4e53116db.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/1/0431/8055/6452/files/32600765790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8477/0199/files/jezerufugep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/xewig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4971/9720/files/velav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7142/files/free_file_splitter_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/bourdieu_symbolic_capital.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6307/files/satizor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6851/3686/files/magujujinawama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/netoneneza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/8510/3003/files/36038192257.pdfIn PDF document text
    • https://cf2beb9b-2d83-4e1a-bc33-a5e65a185e3f.filesusr.com/ugd/154db6_e1b81d3291bd46a18b7935363dee4256.pdf?index=trueIn PDF document text
    • https://62728fd4-0953-4e93-8e9c-d76a20065c9a.filesusr.com/ugd/3ed902_50ca38d5215349f0a695d6307305775c.pdf?index=trueIn PDF document text
    • https://eaf140de-2736-4f6c-a4de-289bc98c1b9c.filesusr.com/ugd/dcf311_384e75caa8e04c8abec9b99f10e86296.pdf?index=trueIn 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7C9 6384 bytes
SHA-256: fa192f2111c35e946b4b3479baad9d5ee4548ecf8189229792d43380f177ec15
font_01_sfnt_off0000edc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC9 4836 bytes
SHA-256: b2f11149372e10c8a4921ff77d6dbe5fde6839a04ead26c8d52634d6b341748c
font_02_sfnt_off0000fe52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE52 11064 bytes
SHA-256: 1f706b92c55c213e1a640540b4be1dd12ac3b80735562624bad317b03210aed7