Malicious PDF — malware analysis report

Static analysis result for SHA-256 e595709432d3ffcd…

MALICIOUS

PDF

57.0 KB Created: 2020-08-03 16:24:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac816e7681905d461828468f0f19fb52 SHA-1: d29deb2c85400729a4511afb6524cf8c2b56e8cd SHA-256: e595709432d3ffcd0a69d97abe87b81c2640c01720b3d2a219b81be90aef434d
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. This suggests the document is part of a link farm designed to obscure the ultimate destination, which is likely malicious. The ML classifier strongly supports 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.com/pify?keyword=analytical+method+development+hplc+pdf In PDF document text
    • http://files.ittakesdeathtoreachastar.com/uploads/1/3/1/3/131384791/4623950.pdfIn PDF document text
    • http://files.tcstars.com/uploads/1/3/2/6/132696263/wapovolavadun.pdfIn PDF document text
    • http://files.breastlearningonline.com/uploads/1/3/1/0/131070754/nuwozin.pdfIn PDF document text
    • http://files.suezn.com/uploads/1/3/1/6/131637357/ganolutiwefutudoso.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0433/3862/9270/files/42416982834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8754/3964/files/bidugomakiluladazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/foxesisusig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7754/1791/files/bewirifesibalekojitap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/gitot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2172/9955/files/68159012462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6871/8233/files/gobusizupagox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2548/9305/files/juteto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8339/9321/files/58533458213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5974/7745/files/69194147900.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9814 1612 bytes
SHA-256: a596b331df0c9d8c40fdea56a557f6fbfd29588e6e2f9ef6623e9e8743d41e7b
font_01_sfnt_off0000a01f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA01F 5272 bytes
SHA-256: 1ae742ca721182ed27761331daf4263c773e1fd3d07b724c0650b78ba8346fc3
font_02_sfnt_off0000b1fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1FE 10668 bytes
SHA-256: 5e8f2deaefe4da76d6e82a3aee3e87bb253f81753241fb9dbd6be13a86fdf1b8

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