Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f5c2326afef597…

MALICIOUS

PDF

44.8 KB Created: 2020-10-08 00:29:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-07-19
MD5: 51e0690c65f565f04f228d39577bda07 SHA-1: ddf97a66c190821eee6d93e729e4fb58815d3b1c SHA-256: 26f5c2326afef597ac1036a82865f58ec14ddcff1af7ad47ec60c736ab220ff2
132 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ggtraff.ru/strik?keyword=corporate+finance+the+core+4th+edition+pdf In PDF document text
    • http://files.woodinvillehighschoolptsa.org/uploads/1/3/1/4/131438741/zetabafeli.pdfIn PDF document text
    • http://files.briancarnold.com/uploads/1/3/1/1/131163832/gutogowimogovimej.pdfIn PDF document text
    • http://files.esandypowell.com/uploads/1/3/1/4/131407183/gakegofosemut.pdfIn PDF document text
    • https://site-1036975.mozfiles.com/files/1036975/ronafefabazimagagotuxafo.pdfIn PDF document text
    • https://site-1036981.mozfiles.com/files/1036981/kususexuzobu.pdfIn PDF document text
    • https://site-1038592.mozfiles.com/files/1038592/xefegulisikubevaze.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006498.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006498.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off00009809.bin)
    • https://uploads.strikinglycdn.com/files/b65b50f9-dbfe-4500-92d5-2e4099d1006e/63865935550.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc3be076-df9d-40a0-9848-ee2d36672551/86608848662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4441/3350/files/98284156006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/is_apple_mortgage_cake_on_netflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31a32a6b-fdfd-4e56-9aa5-f801a30f8eeb/1753893861.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_off00006498.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6498 4932 bytes
SHA-256: d61643e98b46479482bfe75d96d289241c8c1d10cf5ba1fba7f94e9280bf8113
font_01_sfnt_off00007558.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7558 10176 bytes
SHA-256: 9f0f75660214e7c2d7c94816f5429296861a8d6945ec9ddc0683a0fae9741d97
font_02_sfnt_off00009809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9809 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c