Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3981a0759aa408…

MALICIOUS

PDF

65.7 KB Created: 2020-10-14 13:50:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-19
MD5: fdace006d83f246e28032235469434d2 SHA-1: 2b7b79be516ab5ee32373bd201899c13fb0ff3c1 SHA-256: 4e3981a0759aa408a9b6e896350a909c8faa903aa367e0020936de9fee48eadc
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://ggtraff.ru/strik?keyword=siemens+nx+11+guide In PDF document text
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/tigosorivibisakoxu.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/dbbd04.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/7885719.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/8536469.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/nukunuraki.pdfIn PDF document text
    • https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/c2099e721b.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/297c0.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/jolon_koxuzozudanik_makilitinami.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/lukuxaluk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fcdf542c-3a72-4354-93e0-028b5f0b59b1/87986266094.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6e69ad3-ac16-4f50-8354-2dbe9c07e620/14874106361.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2ec4667-c4a6-44c9-826b-3f27589bfbdb/21733830100.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1920a51e-2796-481b-9d45-eee3c0981d99/fomakupofodupop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b46d8a96-af49-4773-a127-0659175c3c6d/movakeguvibuwewizetewefu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8e20224-6b57-46e9-99f0-6c64bc9b3b61/4016362039.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0a15f35-70e5-416e-bb9d-f36d8c5e4cb3/68149957344.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85368e81-81e9-4b10-9a09-f9d493b28098/gatal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbcc896b-15b0-4f75-ad2d-1098195cd262/39682472758.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48743bf2-ed3b-406e-930f-f6226da14f3b/bujugelujunipawikagaga.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_off0000bb68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB68 5032 bytes
SHA-256: 3ee544051782ea07c1f048164d92bc3323b012527c16f1b56e7f71f45fdee80c
font_01_sfnt_off0000cc74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC74 1608 bytes
SHA-256: 41e15a5955da95dbfa2254a561f4119c753513b4833aec909bc8c2880783c688
font_02_sfnt_off0000d494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD494 10652 bytes
SHA-256: c914f7fc256b0f66ef2790a23b5c2de6cc2b1809016d6d3ce39a4cbaf559ef5a

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