Malicious PDF — malware analysis report

Static analysis result for SHA-256 6428e3a8efaacd42…

MALICIOUS

PDF

47.0 KB Created: 2020-08-04 07:09:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e3a826dd00e57f27b0d0d082dc5bf34 SHA-1: 05eed85fdb65696909095f92e0dfc93ab506f04a SHA-256: 6428e3a8efaacd42cd3199f6b8c5045050fd2b1f2b76f2e11e26393463c0c89e
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, but the primary link redirects to a known malicious URL. This suggests a link farm or SEO poisoning tactic to drive traffic to malicious infrastructure. The embedded link `https://ttraff.ru/pify?keyword=101+ccna+labs+with+solutions+pdf` is identified as a malicious redirector, likely leading to a further stage of infection or phishing attempt.

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=101+ccna+labs+with+solutions+pdf In PDF document text
    • http://files.digitall.photography/uploads/1/3/0/9/130969755/05a6a377e6.pdfIn PDF document text
    • http://files.tomslawnandtreecare.com/uploads/1/3/1/0/131071145/1021154.pdfIn PDF document text
    • http://files.greetingscomrade.com/uploads/1/3/0/7/130739746/d370ca.pdfIn PDF document text
    • http://files.celiagaertig.com/uploads/1/3/2/3/132302978/mugulipiwa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3848/1320/files/57130443173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/65356167522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8883/0873/files/22257555071.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8142/3262/files/35847595404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3910/4930/files/53972834741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/89415329809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1583/9645/files/51250306526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0138/7936/files/13219323718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2114/8061/files/velosanubivoxad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4292/0865/files/jennifer_saunders_holding_out_for_a_hero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7229/8913/files/69776101961.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEC 5476 bytes
SHA-256: f0588ead4cb1388cd5c11c23e158ff6cd6bd4fb39bec6b70e329010e238865c2
font_01_sfnt_off0000718b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x718B 8744 bytes
SHA-256: 3cae7bb82f733aea0a9e5faa904d9ef6439abe7b5a7271e2dfd450e98dee1bea
font_02_sfnt_off00008a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A06 11220 bytes
SHA-256: 2dc35dda0422af0ac1ffc0aa22964411d09c16ec04c3f0037c695a49aab76f7c

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