Malicious PDF — malware analysis report

Static analysis result for SHA-256 411e8422cc0275dc…

MALICIOUS

PDF

33.5 KB Created: 2020-07-31 23:41:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d13fa59ac1a2a42635a82d325e316494 SHA-1: 037dfdf582804b0f60869de1d1e946f95115aa91 SHA-256: 411e8422cc0275dc8b2cada13b0aebf719e970565abb64c5f43aeeff7b4d143b
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, and one critical redirector link to 'ttraff.cc'. This suggests a link farm or phishing lure, likely intended to redirect users to malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of redirector links indicates an attempt to obscure the final destination, which is likely 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.cc/pify?keyword=line+6+fbv+shortboard+mk1+manual In PDF document text
    • http://files.washk12wellness.org/uploads/1/3/1/0/131070597/lowadipuriviwufupiz.pdfIn PDF document text
    • http://files.hippovalley.org/uploads/1/3/1/1/131163533/6804981.pdfIn PDF document text
    • http://files.profitdrivercrm.com/uploads/1/3/0/8/130813510/8948190.pdfIn PDF document text
    • http://files.powerofbankinginyourhands.com/uploads/1/3/2/6/132682919/3411665.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/1/0430/4352/0665/files/22733062250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/60209370556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2462/1473/files/8992076805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2492/3298/files/wamelagoselifonid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/69307106829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/98865828345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6598/9530/files/62239655298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7677/9174/files/jotin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/38316882757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9683/4212/files/pavalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/99842035204.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000046d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46D9 5556 bytes
SHA-256: 04e94c7c6fec739a0d1287d7bdcbe8bde1b59c4ac5ba927594407e166670c6f3
font_01_sfnt_off000059a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A1 9344 bytes
SHA-256: bcfc599b612ac8045553bab5330714b5384349840873a6cfc3affe47d257d0d2