Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb85debde54cf24…

MALICIOUS

PDF

44.1 KB Created: 2020-08-09 05:50:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e30232a9697a529c112b1cc03820531 SHA-1: e4f93e096abdf59c09b49aea5458dd0a182d8bd9 SHA-256: deb85debde54cf24088eb306e560a6cdffdbe9d61b55837b00451801df92b5d7
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on Shopify. One of these links, https://ttraff.ru/pify?keyword=mutually+exclusive+collectively+exhaustive+mckinsey+pdf, is identified as a known malicious redirector. This suggests the document is part of a link farm designed to redirect users to malicious content, likely for phishing or malware distribution.

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=mutually+exclusive+collectively+exhaustive+mckinsey+pdf In PDF document text
    • http://files.joburgkidspaces.com/uploads/1/3/0/7/130738876/5f0369a5e5f5.pdfIn PDF document text
    • http://files.ststephenriverrunners.com/uploads/1/3/1/4/131453062/516356.pdfIn PDF document text
    • http://files.jackieschuknecht.com/uploads/1/3/0/8/130874240/3076c37.pdfIn PDF document text
    • http://files.vivallbright.com/uploads/1/3/0/7/130776218/mimevurosida-fizigeme.pdfIn PDF document text
    • http://bajowolij.kaplanforschoolcommittee.com/uploads/1/3/1/6/131607062/09bdf0e38523c8.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/1/0433/9620/2661/files/super_fast_english_speaking_book_free_download_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5317/0339/files/koxemoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2752/1948/files/wadutumaweladefizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/rosegewufixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6014/3014/files/desuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6176/3480/files/punep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8808/5145/files/towebodaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/81533349024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3780/2146/files/sanefed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5399/8487/files/clinical_anatomy_made_ridiculously_simple_reddit.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
🗂 Part of campaign: kaplanforschoolcommittee.com 3 samples

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_off00006ca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA7 5596 bytes
SHA-256: 45d9bcc53c9c4e934d3a23142f8ebea0ab84147ffae82d67106c538cfb2996dd
font_01_sfnt_off00007fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB4 10364 bytes
SHA-256: 293be423cc03240c8b97573bac1de8348bfd02717aeaced983c38dd3cffcd01d

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