Malicious PDF — malware analysis report

Static analysis result for SHA-256 d667cc86c1595bb6…

MALICIOUS

PDF

40.2 KB Created: 2020-08-06 18:24:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 434fd863b34e1e79b56e4f2e06ac8c54 SHA-1: 3230b8b4a7272f7e0fff5c09e8120d6aa5728278 SHA-256: d667cc86c1595bb6fbed8dffc439f7257d50dfcc6df8c473b66f940b548b887a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for a PDF download. The primary attack vector is likely social engineering via a deceptive link within the PDF.

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=adventurer+song+pdf In PDF document text
    • http://files.amussispainting.com/uploads/1/3/2/6/132695805/vemufojatov.pdfIn PDF document text
    • http://files.jdstackroom.com/uploads/1/3/1/3/131383314/gipivasip_gobipuzazes.pdfIn PDF document text
    • http://files.cismaths.co.uk/uploads/1/3/2/8/132814929/zijiru.pdfIn PDF document text
    • http://files.nutritionworksri.com/uploads/1/3/0/7/130739288/642624.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/1/0436/4537/0528/files/guxurebuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9455/6324/files/evangelion_1._11_english_sub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6255/0940/files/wirudubate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8324/2401/files/67544282370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3630/9666/files/99981511327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1995/9463/files/boost_library_c_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8764/2270/files/kubabadutebixafogifefi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/88568052417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6193/6285/files/76283009008.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 8

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_off000061da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DA 5016 bytes
SHA-256: 8e0e920df761fd27c341418345520a764d8054a76c90e84b752657b19955ff2f
font_01_sfnt_off00007306.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7306 9828 bytes
SHA-256: 4758794dacc0f5433133467d80bcaf89db915f01fa57a0b4a113b3791ec90b66

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