Malicious PDF — malware analysis report

Static analysis result for SHA-256 5016c4a933e1c17e…

MALICIOUS

PDF

39.8 KB Created: 2020-08-01 12:41:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 562660a6bcfe6419fd6f3992924b8af4 SHA-1: 2e4b7439d20b9cfce0400969e911262e6230bbb2 SHA-256: 5016c4a933e1c17ee72b2f62f3f5bf32880e60d22192c811d4ee6b5820fc9a10
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, many pointing to external PDF files hosted on Shopify. One URL, https://ttraff.cc/pify?keyword=round+down+python, is flagged as a malicious redirector. This suggests the document is part of a link farm or SEO manipulation scheme, potentially leading users to malicious sites or further payloads. No scripts were extracted from this sample.

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=round+down+python In PDF document text
    • http://files.applemarketingcompany.com/uploads/1/3/0/7/130740521/c0721213d803896.pdfIn PDF document text
    • http://files.adventurescomingtolifeinwords.com/uploads/1/3/2/7/132740462/midevut.pdfIn PDF document text
    • http://files.english4business.cz/uploads/1/3/1/3/131380934/8247688.pdfIn PDF document text
    • http://files.lakewass.com/uploads/1/3/1/3/131384721/c9d256364.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/1/0431/0673/0138/files/vejevuvamuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7792/5019/files/sitenido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6332/0469/files/mixipox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5585/7315/files/vewopapugosas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4971/9720/files/fisedujiwegagofagejisuzap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9096/0799/files/kumujinugiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3087/9136/files/32748711765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5378/3957/files/mekapiwomunarenabep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50537202024.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: adventurescomingtolifeinwords.com 3 samples

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_off00006143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6143 4732 bytes
SHA-256: e0d37679db8840418d5e6a68e28aab059f3b636ee2d02ce0e031101c951052f2
font_01_sfnt_off00007177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7177 9852 bytes
SHA-256: 328b28f9d79b095fe604e24a7af33e131c6245d81ce7575b12a76d0256db4ba7

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