Malicious PDF — malware analysis report

Static analysis result for SHA-256 c10d07827896bde6…

MALICIOUS

PDF

41.3 KB Created: 2020-08-22 20:51:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d05f8bb2d6599e2963d87f6b3d92617a SHA-1: ffcc8c0fbfdc1622943465694a2b587e2f4ae597 SHA-256: c10d07827896bde669ddc4fc105faf3f5dd28feaa70d3beddf5b1155656cdd7b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The primary lure is presented as 'Free word borders templates', which redirects to a malicious URL. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to harmful 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.cc/pify?keyword=free+word+borders+templates In PDF document text
    • http://nugoduv.campfashionlab.com/uploads/1/3/1/1/131164250/318d13a13ded.pdfIn PDF document text
    • http://nekaja.seasonedservices.com/uploads/1/3/1/1/131164250/9314297.pdfIn PDF document text
    • http://garof.devinelydesignedproducts.com/uploads/1/3/0/7/130739777/pivuxujobe.pdfIn PDF document text
    • http://zesofage.cutekitties4u.com/uploads/1/3/1/3/131381675/bagura_larumaje_rodulufumox_zawotipadur.pdfIn PDF document text
    • http://files.kingsporthorses.com/uploads/1/3/1/3/131383553/1742861.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/1/0433/7372/3800/files/64206850353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1928/0288/files/46282013621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9391/6837/files/65334239240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15125842299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/17538084794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3244/files/aguner_poroshmoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7994/8705/files/rorosexewidafofuzowabug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1898/5372/files/vukijiseb.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_off00006532.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6532 5292 bytes
SHA-256: b9914f1fc34e45dca8c4c3c5adf6058e30bf3f4f249fd73537c0f7a81bfbc575
font_01_sfnt_off00007724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7724 9740 bytes
SHA-256: 63963e8726ef64fc6b4f86f41f9c4063499d8090363a330effebc474cf427f7f

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