Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce7e6eb002555ee…

MALICIOUS

PDF

58.7 KB Created: 2020-08-12 05:00:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 93252b8378c31dc2d9259bc93ffcb3d0 SHA-1: d339c696c7640c821169bfc6a322e35fb6f0d0bb SHA-256: 3ce7e6eb002555ee9a5dce91cf8459e2ae8521ad592666d29c3c6decd151951b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'Universal immunization schedule 2020 pdf'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the presence of a link to known malicious infrastructure, and PDF_SEO_LINK_FARM indicates a mass of external links, likely for SEO manipulation or to host further malicious 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.ru/pify?keyword=universal+immunization+schedule+2020+pdf In PDF document text
    • http://files.mychefg.com/uploads/1/3/1/4/131453733/21a7fa.pdfIn PDF document text
    • http://files.johnfishersculpture.com/uploads/1/3/0/7/130738993/abc76ee15b84.pdfIn PDF document text
    • http://files.thehighlanderreport.com/uploads/1/3/2/6/132695492/8949114.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/1/0431/4100/5480/files/95415106976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6810/4602/files/genisutova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0631/2093/files/54763264323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/98302712968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/62157360507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/megukamokurapozum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/bepiratopafagusesiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8457/0019/files/52915547513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5219/6249/files/97896366931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3201/0152/files/collections_in_java_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2331/7662/files/xoveragitipakemavenez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1791/0947/files/sales_and_marketing_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/ximipagunemapowunodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8307/9592/files/35254067174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4245/5207/files/overview_of_networking_concepts.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 3

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_off0000a75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA75E 5772 bytes
SHA-256: bb2ea3ca14c4227c0fa6f78f2ea00ebedf738dc0c8b069545e563d43bb7408fc
font_01_sfnt_off0000baed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAED 10080 bytes
SHA-256: e9a3131302527f3fd078a220dc86b5804ce9b2bc1162a277856bfd3a70253a43

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