Malicious PDF — malware analysis report

Static analysis result for SHA-256 0437c010ca7e9028…

MALICIOUS

PDF

41.5 KB Created: 2020-08-11 00:26:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 532dba8e06b045020667a93ce42854ae SHA-1: b5e5b1a61dd0055714c2e789c29fd4912eecf29a SHA-256: 0437c010ca7e9028775eef9e873b87feec75c07bf0bb07512cc46cd1a6c528c8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to appear as a link farm for SEO purposes, but the primary link redirects to a known malicious redirector. The document body, though heavily obfuscated, contains the malicious URL and other benign-looking Shopify URLs. The ML classifier strongly indicated maliciousness, and the PDF structure itself points to malicious redirection.

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=agency+cost+pdf In PDF document text
    • http://files.apowersphotography.com/uploads/1/3/1/1/131164479/13b06.pdfIn PDF document text
    • http://files.keyestosafetyllc.com/uploads/1/3/1/1/131163976/kutupobeb_tefax.pdfIn PDF document text
    • http://files.herstoryhouse.com/uploads/1/3/1/4/131406840/cf059294a57a186.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/1/0434/0151/1064/files/61406012472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2110/5309/files/rosobulebabiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5699/6245/files/giwazefuvufebilusofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8965/files/hackflix_code_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/59844709182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5129/4619/files/xolajugenezawawetesef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1587/2423/files/dekezawovusininur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/21902153199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6880/1702/files/bangla_quran_meaning.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 7

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_off000063d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D7 5076 bytes
SHA-256: 38a5599af512079e548f52057b4802b677dbf71a8cc952afb45d87b067ce3641
font_01_sfnt_off0000753c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753C 10608 bytes
SHA-256: a57805bd8c4307592413be0c9de2b73fba30affb5971f3571f7cfcffff142824

Open this report in the interactive analyzer, or submit your own file for analysis.