Malicious PDF — malware analysis report

Static analysis result for SHA-256 62fa00c04ab9b45b…

MALICIOUS

PDF

49.1 KB Created: 2020-07-27 15:18:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8f709cddd614e5a4ac76b1925dd6009c SHA-1: 9510d622c3d57bbb9bc2aea0d26e0c206ee2ff4e SHA-256: 62fa00c04ab9b45b828abe5659d007bfb477f60fa6bef967672ffcee08ef2fe8
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious infrastructure, specifically identified as a link farm and redirector. The document body, though heavily obfuscated, suggests a lure related to Kindle Paperwhite formats to entice users to click the malicious link. The ML classifier also strongly indicated maliciousness.

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=kindle+paperwhite+3+supported+formats In PDF document text
    • http://files.nationalparks-list.com/uploads/1/3/1/6/131606069/7689536.pdfIn PDF document text
    • http://files.willowridge.org/uploads/1/3/1/3/131398088/tumiguzazafa_vufadonenow_rulaxizuri.pdfIn PDF document text
    • http://files.rebekahlodge.com/uploads/1/3/2/8/132815123/9333523.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/1/0434/1566/6849/files/jumuzujureluluzasedenogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6116/5723/files/fujiforu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9581/0455/files/fetorugosifuwuweraf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/61144275252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4398/6340/files/tarale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8723/files/28335793129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5344/0414/files/vozile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/puxatofutedixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1242/1789/files/47893572572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/2996/files/52639413821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0706/5760/files/vozikajikonoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5624/2581/files/85677124477.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 2

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_off00008167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8167 5388 bytes
SHA-256: a90c7d0ae97627d9f9dc680c4115a4de52715204c8884a5abb0bb2f348292761
font_01_sfnt_off0000939c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x939C 10540 bytes
SHA-256: b32eb2c3774c7414eb49b6b68033997e56c5b156ad219373f4505c6dda5fa5ab

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