Malicious PDF — malware analysis report

Static analysis result for SHA-256 42a773cc9a904784…

MALICIOUS

PDF

33.3 KB Created: 2020-08-21 14:19:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b6b4d66421c26e7582d0c9bf132e93f0 SHA-1: cde8af1463f1c551d9cf0604b40d3679e230c6ab SHA-256: 42a773cc9a90478461206ad1f8f6abf614e1f293d39493d722eebe135b939562
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL found in the heuristics. This suggests the PDF is designed to lure users into clicking malicious links, likely as part of a phishing or scam campaign.

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=nz+curriculum+planning+templates In PDF document text
    • http://files.lisamaki.blog/uploads/1/3/2/8/132814306/soxejanikameru_fuzukujamun.pdfIn PDF document text
    • http://files.cuttingedgewealthadvisors.com/uploads/1/3/1/3/131379111/81de41d89d52.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/1/0428/9586/8057/files/zeworodulobogelitow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/kinufeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7220/0605/files/dog_wash_n_go.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9560/3862/files/92208074147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7816/3359/files/critical_thinking_worksheets_for_1st_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/33736316564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasamonuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/64523805151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0168/3865/files/72784480047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6769/5511/files/job_appointment_letter_for_new_employee.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 4

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_off000044f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44F3 5272 bytes
SHA-256: 6edadb51b5d3e58738ee8bfab0d5f34c534326a1f818a550aff92283af900e04
font_01_sfnt_off000056d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56D6 9944 bytes
SHA-256: cb89e70b552b9431db911adc135e5abad2f588d29e049a5f65b45b467856dd55

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