Malicious PDF — malware analysis report

Static analysis result for SHA-256 6749df3d596a44dc…

MALICIOUS

PDF

71.7 KB Created: 2020-08-06 15:45:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d38fc568693b05bbc74177bf44da7cdb SHA-1: 371fb877f97de60bc56a85e52c62991dfe954a20 SHA-256: 6749df3d596a44dcaf8a78c5a43d329903df2aa7d87f2536388a78bee345d3cf
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector service, which in turn leads to a URL associated with a 'Canadian citizenship application'. This strongly suggests a phishing or scam attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the presence of malicious redirector links is a primary indicator of malicious intent.

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=canadian+citizenship+application+pdf+2020 In PDF document text
    • http://files.mrsmoorehubbardsclassroom.com/uploads/1/3/0/7/130775434/sodomojapa-kifir-xaxuf-guzan.pdfIn PDF document text
    • http://files.435676578364674396.com/uploads/1/3/0/7/130738806/59f348dd35030ac.pdfIn PDF document text
    • http://files.sjuartdesign.com/uploads/1/3/1/6/131606087/wulixakitanajukaf.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/1/0429/4567/5420/files/pasuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/jewupep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/ronojir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4633/0791/files/30623451570.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/astrology_for_the_soul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5467/8687/files/1520040095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/24271943783.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/11209243504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5178/6135/files/89519616695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/como_usar_las_varillas_de_radiestesia.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_off0000db1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1B 5376 bytes
SHA-256: 6152ce41203272bd9f3955ce013ca42ff18d6624b66acecbf48006cbf93c6603
font_01_sfnt_off0000ed70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED70 10588 bytes
SHA-256: 65052e9126f40f2afa18096f2820d5a60c88fd9a5f3172554cd0496a7aa626fe

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