Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8ba334692d3c92…

MALICIOUS

PDF

44.9 KB Created: 2020-10-05 04:56:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-07
MD5: cc0bbdaac0016b76c75d71a7554f8e15 SHA-1: 245609a5fe5e9e7e620c0916e758a3fce0df2bf2 SHA-256: aa8ba334692d3c924178acf62de73d736452d40d6b35073931dcc988c9499fec
184 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.
  • 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.
  • 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/strik?keyword=neonatal+seizures+treatment+guidelines In PDF document text
    • https://site-1039506.mozfiles.com/files/1039506/xebezajukelaked.pdfIn PDF document text
    • https://site-1043121.mozfiles.com/files/1043121/jazitew.pdfIn PDF document text
    • https://site-1037141.mozfiles.com/files/1037141/nukogatetaziwarinol.pdfIn PDF document text
    • https://site-1037241.mozfiles.com/files/1037241/27122709667.pdfIn PDF document text
    • https://site-1038910.mozfiles.com/files/1038910/ribovodor.pdfIn PDF document text
    • https://site-1036629.mozfiles.com/files/1036629/manupumanikonojiw.pdfIn PDF document text
    • https://site-1036751.mozfiles.com/files/1036751/sakukalojivoni.pdfIn PDF document text
    • https://site-1036745.mozfiles.com/files/1036745/zufarevoganex.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/975ed5dc-fc7c-4e70-95ac-ee83b7e79d18/bipedanufigonononeka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d6896a8-961b-481e-aa36-37bf770f8bb4/dulefewem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce05fe80-2fd3-48a2-b8ef-82c4e49282d1/76535549396.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8255b01-d1fe-40d6-991c-6013af3da31b/33325693752.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/947fd7a5-0638-42b9-8845-85e18533d9e8/54255267336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2535/0301/files/nike_free_tr_fit_5.0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3170/5238/files/pizomomiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7414/5441/files/rikon_14_bandsaw_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8916/files/st.louis_county_jail_inmates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/8936/7718/files/tenchi_muyo_toonami.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000654f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x654F 5044 bytes
SHA-256: 60ad8cc2b2c807c5e971bb5d1b109652313f38d739a7cb9a91c77ee5510a92d9
font_01_sfnt_off0000765d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765D 10000 bytes
SHA-256: 96f0dfda77984a02450f3ce73f61fc60172902faa68a055046609158377308c2
font_02_sfnt_off0000981e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x981E 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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