Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ca64fd123e6eef6…

MALICIOUS

PDF

40.7 KB Created: 2020-08-05 18:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 558f75373b16693aaeb0e3b9e47793ea SHA-1: bda5fa0e41eab93ff2fc39e15fd2d32baabe19a7 SHA-256: 5ca64fd123e6eef6cb8970ab7db8e24cd24f7b8b241be3bf869afa65b2c02a0a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a significant number of embedded links, many pointing to Shopify domains hosting other PDFs, but one critical link redirects through 'ttraff.com'. This redirector is flagged as malicious and is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking PDF filename, suggesting a lure for users to download further 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.com/pify?keyword=label+body+parts+worksheet+pdf In PDF document text
    • http://files.stjohnlutheransherburn.org/uploads/1/3/2/3/132302913/9588273.pdfIn PDF document text
    • http://files.wayneswindow.com/uploads/1/3/0/8/130874477/4514532.pdfIn PDF document text
    • http://difafux.halfhuman.org/uploads/1/3/1/6/131607062/8cdf1bb7.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/1/0437/2201/4870/files/jesibazepuxejokovuroxeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4486/2114/files/63076549372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3197/8403/files/spoken_english_grammar_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7876/9045/files/60364275348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2013/2257/files/72086719930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/star_musiq_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9553/1424/files/52129305654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4169/2567/files/49957147479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/5555379131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1793/4747/files/mekidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1103/0683/files/bogivosubib.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 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_off000060ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BA 5468 bytes
SHA-256: 7e419c88d98975da4f14c14c89d3c21473cdc7d6c5f9e008817798f86efcfe84
font_01_sfnt_off00007361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7361 10132 bytes
SHA-256: 1ac8f3d181d3632ca4234d7807e99bd5edea85caee5f7ee1085cdc1d4ce1b1d7

Open this report in the interactive analyzer, or submit your own file for analysis.