Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e087561ee0ae79f…

MALICIOUS

PDF

45.7 KB Created: 2020-08-01 21:12:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42f43b459fd912bdc9727eebc4e2fd55 SHA-1: fec5c254f63b6e09176926316dcd7f96088aa669 SHA-256: 0e087561ee0ae79f1c273b0d2e7a4955f9751bf07c0340524400e4f7bf7266ad
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. A critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely used to funnel victims to malicious content. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. The ML classifier also strongly flagged this PDF as malicious.

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=1920%252F+2+calculator In PDF document text
    • http://files.rogartscouncil.org/uploads/1/3/0/7/130740318/c0221de9a.pdfIn PDF document text
    • http://files.matrixalgorithmsinmatlab.com/uploads/1/3/0/9/130969238/a4e9b83895d.pdfIn PDF document text
    • http://files.kmsphotos.com/uploads/1/3/2/3/132303359/kudexigijogo.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/1/0433/0664/7717/files/37379844586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2811/9706/files/40099191192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9365/files/37806488172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/gipakepotemokor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9714/4990/files/57520012301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3097/files/685063887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5357/2515/files/93951874471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6195/9073/files/65567012513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0432/0154/files/bategadadoziduxupekizis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7426/4996/files/wapami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/28227954511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0427/8422/files/15427644152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6176/3480/files/72327442299.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6404 6744 bytes
SHA-256: 8187145963fbf8e0b7977f93bb9cbfc296fb812f6e2b6f40a3c8d31ca5a797a4
font_01_sfnt_off000074eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74EB 5040 bytes
SHA-256: 104de06b3ebc70a52be5a43b16dfc4704b8e9dfd8819df485ba855f4204aab73
font_02_sfnt_off00008629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8629 10328 bytes
SHA-256: 3aba596a73770fc4c54e7877e6712fc2624b55a7b47e502403398e1d6b0b7360