Malicious PDF — malware analysis report

Static analysis result for SHA-256 c534273bddfb868e…

MALICIOUS

PDF

45.7 KB Created: 2020-08-09 17:14:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7914179acc33844f172ebbb426044171 SHA-1: 171879f7c34a19f7dee4ab9e0f60d9350f9b3d0c SHA-256: c534273bddfb868eacfb7ea6000787e8e941ad453b0a4f65198a8673c9172dd7
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 of which point to Shopify domains hosting other PDFs, and one critical link to a known malicious redirector. This indicates a link farm attack designed to drive traffic to malicious infrastructure. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector URL is a strong indicator of malicious intent.

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=aristide+torchia+pdf In PDF document text
    • http://files.geraldsandau-sculpture.com/uploads/1/3/1/0/131070633/9625127.pdfIn PDF document text
    • http://files.jreaycreations.com/uploads/1/3/0/7/130739974/8326416.pdfIn PDF document text
    • http://files.thomasgkelleylaw.com/uploads/1/3/1/4/131437930/1957764.pdfIn PDF document text
    • http://files.harlanparkbaptist.com/uploads/1/3/2/6/132695478/2354188.pdfIn PDF document text
    • http://files.fallscreekcc.com/uploads/1/3/0/8/130873728/4964421.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/1/0433/0133/9304/files/34196446272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8064/6807/files/21901322323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6991/3753/files/cowboys_from_hell_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8530/6782/files/already_just_still_yet_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6939/1527/files/29238235158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0818/0895/files/kobogupamikulew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2833/3219/files/80028797489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/nagifukewunevagifotaxixim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4366/files/78189691595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1223/files/craftsman_weedwacker_27cc_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/82685556098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0545/1174/files/tewetanuberekuxin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9186/8313/files/wukiga.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000760b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760B 5200 bytes
SHA-256: fd2ef77ccf08a524468f9293348caeff64333044aca5c4619288db11e7b8d0fe
font_01_sfnt_off000087b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B6 10104 bytes
SHA-256: 1ff0a1a6eb581b7d43fa336ba5e97f91900ba615e294f10ee1f7059b968a9def

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