Malicious PDF — malware analysis report

Static analysis result for SHA-256 7413ff70a40d3340…

MALICIOUS

PDF

41.7 KB Created: 2020-08-10 06:04:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e6e8d74cd2711aecd68f05d9f2652e2c SHA-1: 2b780990d3abcfa30f4477f900f85dabc31805b8 SHA-256: 7413ff70a40d33409fc19e45828715a7055ea10c30fb6f2ba10e250f408c9308
194 Risk Score

Malware Insights

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

This PDF file contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains text suggesting a lure related to 'civic education pdf' and a URL that is also flagged as a malicious redirector. The presence of a large number of external links, including a link farm, indicates a phishing or scam attempt designed to lead users to malicious sites.

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=civic+education+pdf In PDF document text
    • http://files.terefenckoturkeycalls.com/uploads/1/3/1/4/131455832/717665.pdfIn PDF document text
    • http://files.hfttreefarm.com/uploads/1/3/1/4/131452997/luwuzaxasasetobup.pdfIn PDF document text
    • http://files.karandefallon.com/uploads/1/3/2/6/132682235/lowotozenuzova.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/1/0433/0687/7080/files/dedagefegumam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7000/4126/files/wesajazaxux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4796/7130/files/74922856757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/36167668414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2562/9347/files/adding_png_file_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/81268403139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9692/3555/files/non_polarized_capacitor_values.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/navamemaburo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2355/7030/files/54215982641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21096031872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/nudidofujigijifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0259/2410/files/mijunawetalezitabaxuziz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6771/8309/files/temanulesiwufeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1356/2787/files/rotation_90_degrees_counterclockwise.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 1

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_off000066ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66EA 4808 bytes
SHA-256: 1d759f72a2866d36322237db20630ab7e5fdecf214942c1f9bc30f4b6c2be0c7
font_01_sfnt_off00007766.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7766 9988 bytes
SHA-256: 98fb0ad8a923bf71e3e680268fcd60beb92ea74b727ff5b504f021bbb8f046c3

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