Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f3398edabb6d42…

MALICIOUS

PDF

37.6 KB Created: 2020-08-24 03:30:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3fe64f8995eddcfda3eb2e4007193b0b SHA-1: c4b8b861f37e9c0a7a65c2ea2ce23582d6cf6cba SHA-256: 62f3398edabb6d423afd6d2fa7c33b34f893924ecdc3704a4bbb1cba90fa7b97
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector for phishing campaigns. The document body, though heavily obfuscated, contains text related to 'warranty solutions' and the malicious URL, suggesting a phishing lure. The ML classifier strongly indicates maliciousness, and the presence of numerous links to external PDFs points to a link farm or SEO manipulation tactic to distribute the malicious content.

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=warranty+solutions+gap+cancellation+form In PDF document text
    • http://fugomumu.chrystalhardt.com/uploads/1/3/1/1/131164250/fenetesixuzo_kavexozu_depevog.pdfIn PDF document text
    • http://files.ayrarcheryclub.org/uploads/1/3/0/7/130776130/nesenakuletaju.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/1/0433/7077/4693/files/kusavelotamarenurak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6742/9279/files/52399492612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/6303260369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8456/2086/files/gidivezimopebixoxejogami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4627/9080/files/fanuc_arc_mate_100i_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9932/4567/files/72133119143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/61934105213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1161/6418/files/complex_numbers_in_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/57271980354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/atomic_theory_quiz_answers.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_off00005424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5424 5452 bytes
SHA-256: fda5aaa97f24cc54d075900de1439a0ac44b81de4fec7d1a29cf07e358c19717
font_01_sfnt_off000066b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B1 10368 bytes
SHA-256: be7bb1d30dc3e1e5d6e2be0f06840bdcfecf1599bdcfd1a5e19c3dfb0649b72f

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