Malicious PDF — malware analysis report

Static analysis result for SHA-256 0111dae76487ffe7…

MALICIOUS

PDF

58.0 KB Created: 2020-10-30 22:22:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-28
MD5: 24d71a2879aac4beaa91811aa703882b SHA-1: 582021fb69e391c590cf43ee7673d242d9795a96 SHA-256: 0111dae76487ffe7c8b1b3b45b98832b2a5f8f29b7db870f94c247a4ad8c5da2
194 Risk Score

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://cctraff.ru/wb?keyword=problem%20solving%20approach%20in%20social%20work%20pdf In PDF document text
    • https://nosekuge.weebly.com/uploads/1/3/2/7/132740467/364142.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388598/normal_5f8d68c35ace8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368223/normal_5f8f666ad7edd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409098/normal_5f937fef34025.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376105/normal_5f8a04eb66146.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384029/normal_5f99160727f5c.pdfIn PDF document text
    • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/tozofewebez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384028/normal_5f8e016135e16.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000097c8.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000097c8.bin)
    • https://cdn.shopify.com/s/files/1/0431/2281/9233/files/sisaxotiwagagegoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9166/6114/files/rh_sin_books_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/let_s_learn_english_book_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8882/2950/files/open_vpn_gate_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/9105/7568/files/vavasudadukejatewadavezi.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 extracted file (font_00_sfnt_off000097c8.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000097c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97C8 5924 bytes
SHA-256: 88acb4121583d335ac27631f494413bcdcfa06e1772dddf96823f4e0880f53c2
font_01_sfnt_off0000abdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABDF 12972 bytes
SHA-256: 43efebb01ac64624f7af7c7941aacc122ce1964ca69a545e93f13365d8d280fc