Malicious PDF — malware analysis report

Static analysis result for SHA-256 58153eed75348cd7…

MALICIOUS

PDF

41.0 KB Created: 2020-08-25 17:04:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 712511c0e6fafe07bcdca321f7fa28df SHA-1: 265bcafe0646cc54e3cb76a43d6f37e325ce6d26 SHA-256: 58153eed75348cd70da727c6171e96c6b65f85eaec0991790d038b5f5ecbf09e
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirect. This suggests a phishing or redirection attack designed to lead the user to harmful content.

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=a+flower+is+not+a+flower+pdf In PDF document text
    • http://jenuki.danalockhart.com/uploads/1/3/1/4/131438379/9579537.pdfIn PDF document text
    • http://tepeno.thelinksconnection.co.uk/uploads/1/3/2/6/132681670/5d2f41c6cf8.pdfIn PDF document text
    • http://goxuweg.susanyu.org/uploads/1/3/2/7/132712615/xisisosujuzat.pdfIn PDF document text
    • http://suzixig.hackbarthhealing.com/uploads/1/3/1/6/131606349/263c92cd6dc5a7.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/1/0432/3305/0779/files/79369283881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9023/1974/files/94333624098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7955/7535/files/66267094502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1509/2893/files/xoxopako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0824/4381/files/fiditit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8317/7885/files/siloguwuwelurimipidevuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0987/files/33649714963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/9143/5176/files/duwudonakozezuwesuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0539/3571/files/72583788570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87745409623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/9690/0511/files/pizoxinojimowakaxenigafi.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_off00006408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6408 5116 bytes
SHA-256: d4762dbba933d6276d0176954f4fc7c83a0f77f983945d7a2c4ebddcc140748d
font_01_sfnt_off00007590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7590 9840 bytes
SHA-256: 6a0cb12323a62624b02a9bbda34e91b3332dfdc2ca8475bb21fd1bcd2da7a49e