Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ab2d0162039bbeb…

MALICIOUS

PDF

47.9 KB Created: 2020-08-21 13:27:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e8a1e7fecaa6fa0129a4fda924b39ae SHA-1: 20f39554af35e4745e4189f6b5318d08459d8d76 SHA-256: 5ab2d0162039bbebdbb5500a11cb47974860079133c6710ae14f889b8eb39245
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a deceptive document body and numerous embedded links, including one pointing to a known malicious redirector. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to drive traffic to malicious sites. The document body itself is obfuscated but contains URLs that are likely part of a lure to encourage clicks.

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=el+aleph+jorge+luis+borges+cuento+pdf In PDF document text
    • http://files.trulyyoulifecoaching.com/uploads/1/3/1/3/131383860/822301.pdfIn PDF document text
    • http://files.kathyschrock.net/uploads/1/3/1/0/131070713/pozejanew.pdfIn PDF document text
    • http://files.makwawamalawi.com/uploads/1/3/2/7/132740860/zuder.pdfIn PDF document text
    • http://fonaj.jessicaslaymakerart.com/uploads/1/3/0/8/130874276/poxotojijutadilawim.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/1/0436/1430/6466/files/cinacalcet_davis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/e_filing_26as_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6681/4617/files/case_3_3_marketing_to_the_bottom_of_the_pyramid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/37222907112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sopituwoxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5319/4133/files/cerfa_vente_vhicule_occasion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7090/6780/files/pinaraxadanunogoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8410/2297/files/agroforestry_in_the_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1511/6696/files/centrally_sponsored_schemes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3697/8849/files/hebrew_alphabet_pronunciation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2122/2567/files/54746488729.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0482/8580/files/63077298738.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_off00007a24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A24 5592 bytes
SHA-256: 59a82d897be795c176dfbe28231dfb4e00b73db708dac18d1f08b83d5e31cbca
font_01_sfnt_off00008d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D21 10856 bytes
SHA-256: fcbbc42eccf2c30eb1929996332813b756c857b5c02dd8989c25f66b4348437f

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