Malicious PDF — malware analysis report

Static analysis result for SHA-256 cedcbb27b1a34660…

MALICIOUS

PDF

64.2 KB Created: 2020-08-14 12:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a1bd82df481f9b2f2ac8736cd7b1718e SHA-1: 1768c4fecf464ca95628c1ac1aa29912ce002433 SHA-256: cedcbb27b1a34660295a8479fc869c7a88b522cf9da8aa7765cff8bd68b2511d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM suggests a mass external link farm, likely for SEO manipulation or to host malicious content. The ML classifier also strongly flagged this PDF as malicious. The primary malicious IOC is the redirector URL.

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=scrying+sheets+spike In PDF document text
    • http://files.carpetcleanoahu.com/uploads/1/3/1/3/131383602/zefot_tujopopafodaja_kojubutujara_xapesiwuka.pdfIn PDF document text
    • http://files.mortoncc.org/uploads/1/3/0/7/130739027/genopa.pdfIn PDF document text
    • http://bisojo.lodgefarmleisure.com/uploads/1/3/2/8/132815176/gizufolawigode.pdfIn PDF document text
    • http://files.hightechtintplus.com/uploads/1/3/2/3/132302973/47aff28564.pdfIn PDF document text
    • http://files.brandygwen.com/uploads/1/3/1/3/131384777/6adaac5c9a9e.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/1/0432/1542/1600/files/97046573382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/50513739189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4963/2415/files/jejoviwivufulenujejuzim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9795/6256/files/wobimafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4805/files/ferupololokegokepewuwuluk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/73315222938.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/lawegixokotafigutad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0393/5900/files/emma_busta_nutt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/6344123781.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2527/9648/files/bangla_onubad_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4794/3330/files/african_christian_theology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8310/4409/files/selidimur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4416/6037/files/uric_acid_test_procedure.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_off0000be1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE1D 5224 bytes
SHA-256: 7db86125f4756709bd54f57d9e12308b8f9b10b5ba1b45c334905fbeee7e0c09
font_01_sfnt_off0000cfe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE2 10496 bytes
SHA-256: 9c72c7e1c7778967f5f46a6610c0081418a755d6588e72ce1f02a7519ea9be1a

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