Malicious PDF — malware analysis report

Static analysis result for SHA-256 95b33d7dae2a700a…

MALICIOUS

PDF

33.4 KB Created: 2020-08-20 01:50:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78de49a8e3a938a5fb5444182489be20 SHA-1: 880bec9cd70259bfbe765baa9446484ea91d47cb SHA-256: 95b33d7dae2a700ac748511409ffe94ed5a1dda2ef7f6b5ec60dd0921e09c948
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to shopify.com domains, but one critical link directs to a known malicious redirector. The document body text, though heavily obfuscated, contains the string 'Centring work pdf' and the malicious URL, suggesting a lure to trick users into clicking through to potentially malicious content. The presence of a link farm and a redirector indicates a phishing or scam attempt.

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=centring+work+pdf In PDF document text
    • http://files.e-c-m.ca/uploads/1/3/1/4/131411596/romofo.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/1/0437/1021/8391/files/kuxigiratafarubilaxawaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/nudubomut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4124/9690/files/wozapovosenirediwawovej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5094/3142/files/korufumowiviwodoxux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/21147711657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6395/7918/files/5e_monster_manual_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5066/3073/files/felazugejiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3292/0739/files/sinuwutopusebozerasim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9078/9027/files/alignment_chart_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9827/3944/files/jomuliguvazisus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7592/8215/files/merikidezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0173/2520/files/poweredge_r730_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0333/1231/files/kudebalaxegedutem.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 1

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_off0000473c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x473C 4852 bytes
SHA-256: c2eb7802f60a9327376d37c2119ede09264e3958430066f5f3b935bf1d24879d
font_01_sfnt_off000057e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57E7 9796 bytes
SHA-256: 004eae23cb5e4be1f58824caddc50fcadd20e8357093f34e7d0b91d21a945bcf

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