Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dfe933cfb4448d7…

MALICIOUS

PDF

77.3 KB Created: 2020-08-14 07:36:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce316f8dfd39fab310c9668dde82652c SHA-1: 090c823c6d032f09e4804e8900140b15b6027886 SHA-256: 2dfe933cfb4448d7fa7290f957212163aaeeba68013019d1c3e31806b4afc87f
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to a malicious site, masquerading as a free download for a technical document. The primary redirector URL is identified as malicious infrastructure. While no scripts were extracted, the PDF structure and embedded links strongly indicate a phishing or malware distribution 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.com/wb?keyword=radiographic%20image%20analysis%205th%20edition%20pdf%20free%20download In PDF document text
    • http://files.orizoncenter.net/uploads/1/3/0/7/130776875/7575179.pdfIn PDF document text
    • http://files.lkelliott.com/uploads/1/3/0/7/130776684/fupedisab_vogeguxowodo_xuzevaridibiz.pdfIn PDF document text
    • http://files.redwoodvisualarts.org/uploads/1/3/2/6/132683088/nowagunobar.pdfIn PDF document text
    • http://files.artofceremony.co.uk/uploads/1/3/0/8/130874566/42b7de36064b9.pdfIn PDF document text
    • http://xanubato.psychotherapy121.com/uploads/1/3/1/1/131164250/1295398.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/1/0432/1912/4382/files/50455290754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7393/6291/files/49026071170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9807/files/81980799956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6108/4314/files/92393568477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zixetirubopejama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7926/8520/files/cheat_codes_for_gta_5_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6191/9390/files/jubujetofafobapezapa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1962/2808/files/tibodoborugokokusufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8353/9366/files/bifojikatekanavin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0451/0887/files/74051604330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0470/6464/files/instagram_followers_apk_modded_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0829/4039/files/40520380184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0459/1255/files/13112681459.pdfIn PDF document text
    • https://bookscollection21.blogspot.com/?book=0323522815LearnIn 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_off0000f021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF021 5896 bytes
SHA-256: 1f45818719166cd8f4c56506444f2da1e3b1040b21a4bd8250b237b9d7a1128f
font_01_sfnt_off0001042e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1042E 10464 bytes
SHA-256: 6e5cf44344ef7c7ec9728e60196bc4be88483925e6e9d33cb38a396cbd36313d

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