Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c529353169f5cfd…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 03:01:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c515a0a65d59f012c97db09e06a42203 SHA-1: eb537d0d759e7aa65a9cd19203814994b085ba6a SHA-256: 1c529353169f5cfda91075bfa46b0e3df662e4b9d0dedb40c7b9b14383361221
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1204.002 Malicious File: Malicious Link

This PDF file contains a significant number of embedded links, many pointing to Shopify-hosted PDF files, indicating a link farm. One prominent link directs to `https://ttraff.ru/pify?keyword=baby+shower+agenda`, which is flagged as a known malicious redirector. The ML classifier strongly identified this PDF as malicious, supporting the conclusion that it is designed for malicious purposes, likely 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=baby+shower+agenda In PDF document text
    • http://files.eatwellhalifax.com/uploads/1/3/0/7/130775221/c7afdfa84992c20.pdfIn PDF document text
    • http://files.seattlechronicseeds.com/uploads/1/3/1/3/131381850/3314363.pdfIn PDF document text
    • http://files.river-city-wings.org/uploads/1/3/0/7/130775633/e77377c9.pdfIn PDF document text
    • http://files.masakoonodera.com/uploads/1/3/1/4/131406391/5538736.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/1/0430/1075/2663/files/69721133636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1048/2588/files/82815239589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0611/6511/files/51690335889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2152/3349/files/povilojojilusuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8168/6437/files/leduwedefigefodeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9603/9839/files/66607979710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1672/4386/files/11243437543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/33647917740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/xebizalid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7064/4631/files/73350125163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61066914906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/svnadmin_add_user.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: masakoonodera.com 9 samples

Related samples 7

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_off00006cd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD0 5436 bytes
SHA-256: d511cbd07606ddd8fc604ed436f7b793cd3f6375a965d193fa0c58461c6c9a99
font_01_sfnt_off00007f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5A 10584 bytes
SHA-256: 96e188bcc5826b6cd19683623e2968969a114b85a744f2302f7aba3cd2ea03c6

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