Malicious PDF — malware analysis report

Static analysis result for SHA-256 166892a7e6ad9404…

MALICIOUS

PDF

37.7 KB Created: 2020-08-03 05:18:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9bd6bb16f2abe29dde2e9bf457dce402 SHA-1: 100384562869690e4b3ab19efda00f2cb44c6aa4 SHA-256: 166892a7e6ad94040398164bb0f658691c56c7e0bfd8bbecd4659bdb2b360b36
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to an SEO redirector infrastructure. The primary malicious link, 'https://ttraff.cc/pify?keyword=ion+profile+pro', is identified as a known malicious redirector. The document body, though heavily obfuscated, contains this URL and other benign-looking Shopify links, suggesting a phishing or scam lure for free downloads.

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=ion+profile+pro In PDF document text
    • http://files.integritydetailcookeville.com/uploads/1/3/0/7/130738894/wisigugadewivag-pizomagogomotuv-nowupod-lulurav.pdfIn PDF document text
    • http://files.tallsprucefarm.com/uploads/1/3/1/3/131383318/fewof.pdfIn PDF document text
    • http://files.destinationapp.co.uk/uploads/1/3/2/7/132710763/e94dbdb996455d.pdfIn PDF document text
    • http://files.bethesdawinestore.com/uploads/1/3/0/9/130968934/kimowo.pdfIn PDF document text
    • http://files.gckllc.org/uploads/1/3/0/7/130776245/nobawebija.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/1/0431/6567/9776/files/31075505860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4835/2406/files/99744733855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2051/7537/files/head_first_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/85932613019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7299/2918/files/durmukhi_nama_samvatsara_panchangam_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0537/0787/files/52039123155.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/41409469969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6741/6488/files/79257371661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/59272132816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/filakopukizojaxavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5739/files/22150176821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5063/8241/files/furunen.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_off000056ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56FF 4444 bytes
SHA-256: a13bfb808f204c0fb03c0eea1acbc71a14f8409a65534181688a6e7bd600ea99
font_01_sfnt_off0000662a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662A 10540 bytes
SHA-256: f4499f0624e7ed47bbdc512d4056a4cb753610227810d56fc0b5a5d69ecfbfdf