Malicious PDF — malware analysis report

Static analysis result for SHA-256 c94ab52929f2b771…

MALICIOUS

PDF

75.3 KB Created: 2020-08-22 11:46:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4d52f747e81a4646b1315660528f2532 SHA-1: e2c77301369b0a7981e9df7b6babf3342f6a957a SHA-256: c94ab52929f2b7713699146fd847b461e91a8084d535f8aa7df0048c7e5676a7
194 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to appear as a TV guide, but the primary link redirects to a known malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the link `https://ttraff.ru/pify?keyword=spectrum+tv+guide+melbourne+fl` leads to malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger effort to generate traffic through numerous links, many hosted on `cdn.shopify.com`. No scripts were extracted from this sample.

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.ru/pify?keyword=spectrum+tv+guide+melbourne+fl In PDF document text
    • http://joxonid.byptrampolines.com/uploads/1/3/1/3/131379730/6427354.pdfIn PDF document text
    • http://files.gatewayreadingcouncil.org/uploads/1/3/2/6/132695408/namamepamasawug-rerobekasoxet-nemowu-xibumisixogofo.pdfIn PDF document text
    • http://rulakil.meaganlaycockphotography.com/uploads/1/3/1/6/131636725/d08b5a58a7b2.pdfIn PDF document text
    • http://files.dixiepackaging.com/uploads/1/3/1/4/131409861/ee9f7f.pdfIn PDF document text
    • http://xosino.bvswband.org/uploads/1/3/1/3/131398140/raxosenej.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/1/0430/0229/8521/files/91736667358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/protein_structure_and_function.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8757/6740/files/heliocarpus_appendiculatus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9934/9407/files/essence_anatomy_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1165/4307/files/calendar_related_aptitude_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8393/0527/files/abdominal_pregnancy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/56464270376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5041/8847/files/98758428516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8793/6150/files/abordagens_pedaggicas_da_educao_fsica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/77704712471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5536/3734/files/72416557256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5038/5051/files/faxamifuduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5034/4352/files/21818654909.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_off0000d9f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F0 5392 bytes
SHA-256: 1e5f3efc623d8873e72411d18e8a4b3c898621968161571d085797d3e8df8b11
font_01_sfnt_off0000ec38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC38 16440 bytes
SHA-256: 648905e426a5fee592369c65b3dcc50f261778140ed9c15d51a4b994a25ffafe