Malicious PDF — malware analysis report

Static analysis result for SHA-256 725b54df28ad0aa3…

MALICIOUS

PDF

39.8 KB Created: 2020-08-09 23:09:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c532d260ed75447cf1012852c5469b15 SHA-1: 30e9a8538b8160fb68eec4549e18397b6cf9a950 SHA-256: 725b54df28ad0aa371b47e38714de645e31cc4e145121edf3b582b8f8bf16d2d
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though obfuscated, contains text and URLs that suggest a lure for free downloads, specifically mentioning 'bead loom patterns pdf'. The presence of numerous external PDF links, many hosted on Shopify, further supports the SEO link farm tactic. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bead+loom+patterns+pdf, which is likely used to redirect users to a malicious site.

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=bead+loom+patterns+pdf In PDF document text
    • http://files.gromowskilawfirm.com/uploads/1/3/1/4/131408086/gepumide_kuvafimiki.pdfIn PDF document text
    • http://files.nemescreative.com/uploads/1/3/1/8/131856392/zumonex.pdfIn PDF document text
    • http://xuzok.nandisbirdpaintingsonwood.com/uploads/1/3/1/1/131164243/vuvixadinaxo_kosazuwufos.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/1/0452/2960/5024/files/contrato_de_arrendamiento_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7945/1295/files/jajudulajegufomexup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3450/8455/files/stamp_on_the_ground_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7058/4987/files/1144801206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5117/1478/files/newixigewejiviroxasuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/gitanuxumobojax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5449/0012/files/zuponebuzuxasovogoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/69236386462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7279/6325/files/ritufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.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 3

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_off00005ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECB 5236 bytes
SHA-256: bb022299683d07866bf447a91cc13236d120ba6c4b86ee0a38985152f31e1aaf
font_01_sfnt_off00007081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7081 10052 bytes
SHA-256: 045af9699bbf3d337d02310efc54656dbb4186fb665f338b2a1829eaf0bbff4d

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