Malicious PDF — malware analysis report

Static analysis result for SHA-256 66e0483f78002720…

MALICIOUS

PDF

47.7 KB Created: 2020-08-16 20:26:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 17a2b16e0e17ee444ee3433b86276bb4 SHA-1: d68588dd0ac430e01108c48683c36292d92aced2 SHA-256: 66e0483f7800272056c6a7f7996e9b2ebbc52f17eec02d49ced2cd3a4c067fc6
194 Risk Score

Malware Insights

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

The PDF contains embedded URLs that point to a malicious redirector, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body and heuristics suggest a lure related to an 'appraisal form 1004p', which is likely a phishing pretext. The presence of numerous external PDF links, many pointing to Shopify, indicates a link farm strategy, potentially for SEO manipulation or distributing further 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.ru/pify?keyword=appraisal+form+1004p In PDF document text
    • http://pogup.swisscompleteeyecare.com/uploads/1/3/1/4/131407558/1631429.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/1/0430/5240/0789/files/98093587675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9521/2697/files/carpet_sweeper_reviews_consumer_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1021/9422/files/67572915065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2060/6885/files/83687460100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1667/5740/files/70698468203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6409/0006/files/jezefuxupevijazekefipokas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/zonafefuvov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7056/9113/files/ragaxulabiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0357/4432/files/12516270520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6671/0429/files/wopovemobagezaj.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
🗂 Part of campaign: swisscompleteeyecare.com 3 samples

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

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Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007e1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E1F 5320 bytes
SHA-256: 3d9ecadb8e8d36f06187db396e5593884f52503b40c78cb392e497afc77a8306
font_01_sfnt_off0000901c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x901C 10088 bytes
SHA-256: 4fa8c8a8139f4728a76f410d82ba3b008dcbd29da23200f82c71a90b20bef3b9

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