Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e973450c653af23…

MALICIOUS

PDF

43.0 KB Created: 2020-08-04 23:56:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2a28f6772dbe9ce4fc86f0fda530e7b9 SHA-1: b85ea538680c7469f1eba6f0eda3ad983b70f2dc SHA-256: 2e973450c653af23079f5b667d5bf8616a6f64c7511a41641e03c33f5ed7be34
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, and one critical link to a known malicious redirector at `ttraff.cc`. This suggests a link farm or redirection scheme designed to lead users to malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external links supports the attack pattern of luring users through a deceptive document.

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=applied+linguistics+to+foreign+language+teaching+and+learning+pdf In PDF document text
    • http://files.fairytalejourneysbyalanna.com/uploads/1/3/1/3/131383483/74d75e21e.pdfIn PDF document text
    • http://files.marriedmarks.com/uploads/1/3/0/7/130738644/1323285.pdfIn PDF document text
    • http://files.nc-xh.org/uploads/1/3/0/8/130813366/40568.pdfIn PDF document text
    • http://files.oatvalleybaptist.com/uploads/1/3/2/6/132695339/7605778.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/1/0431/4487/2090/files/86361337938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54686169254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7967/0689/files/kafiwenutom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/25045885659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0763/7661/files/nunupirugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1894/4665/files/fefipelekiravurizurotifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5428/4450/files/73752226844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6241/8846/files/lerax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6413/8651/files/xikenarumumupegoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/vojuluvo.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 4

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_off00006a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A10 5408 bytes
SHA-256: a486f89a9d8f3da3b3cd4c94f8beec6ce3f9871a7775a218946c7e870a3f3fd5
font_01_sfnt_off00007c77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C77 10120 bytes
SHA-256: efdba4c85c57dc7eeea6d764752c20c81c5f4d6398aa7508e9e2004086d1dc51

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