Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca17d1bafb024af2…

MALICIOUS

PDF

46.7 KB Created: 2020-08-20 00:12:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 678bbbc135cd53cd2fdd5af3f0d140c0 SHA-1: 45cad58fc6224e24e835f4929d053d5a43a18beb SHA-256: ca17d1bafb024af24d7b7ec839eacac1feb52ba6f01bd458a97185887c1f0f91
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO poisoning or to direct users to malicious sites. One of these links points to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, also contains this URL and references 'Capitalism 2 lab', suggesting a lure. The presence of numerous shopify.com links indicates a link farm strategy.

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.com/pify?keyword=capitalism+2+lab In PDF document text
    • http://files.rockport-pewter.com/uploads/1/3/2/6/132682124/bojaxoz_ronopibipil.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/1/0432/3003/6123/files/angularjs_viewer_directive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0708/0610/files/16441053221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4921/2311/files/razikenajebato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/paxere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5059/8562/files/mibugejezuvosobibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5207/2086/files/battlestar_galactica_boomer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5887/8872/files/50848115858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/38663691973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/holiday_gift_guide_for_her_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4764/1510/files/2199171992.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 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_off00007a2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2C 5048 bytes
SHA-256: 873757779bec680bcca5ff13f93006148f8875632fe6bb4a8f6863b54be6653e
font_01_sfnt_off00008b40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B40 10360 bytes
SHA-256: 2b90861ead3883a9d8cb6aa5fb279ed5ddf0e4b9ef90ee90e8773b1e77cdabb5

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