Malicious PDF — malware analysis report

Static analysis result for SHA-256 7824ca97a376bba7…

MALICIOUS

PDF

62.0 KB Created: 2020-11-05 06:18:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: ee07649b1e16425688ec46632d420fa3 SHA-1: d65f40fd7717f9726baa8c4e30def415c7bdeea1 SHA-256: 7824ca97a376bba753e5d9fa6ac67e57dc1f37c4a89de30df173ac254537a05b
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/wb?keyword=potato%20onion%20bin%20for%20kitchen In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369919/normal_5f977f65d4ab6.pdfIn PDF document text
    • https://rifuxegu.weebly.com/uploads/1/3/4/5/134525143/sadabixezad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401716/normal_5f974af2b267d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380867/normal_5f9f43f4f1609.pdfIn PDF document text
    • https://dawerofe.weebly.com/uploads/1/3/4/3/134361643/xagifaj.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/fbac58a2-31fa-4882-97a4-5f0b10e098eb/tepufapazuzolejurofonude.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84928449-a207-417b-badb-931c344aad23/jugedixikegeboreko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d90062c-e5a9-4de7-9f21-d1649ff2c420/ssa-561-u2_fillable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/664620a1-6e6a-4009-b20e-86828fcde9bf/11591722917.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/943ad2f7-5004-4364-bbf5-7134fc20501b/one_up_on_wall_street_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/57862e5e-5b1a-4f5e-bb7a-37ac8609ca7f/kenazodoxizofedinu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bafe0844-8129-4453-aded-bd73535f16fe/taurus_man_secrets_read_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ced6f093-5a6b-4373-9ef2-f4f9676f986a/git_could_not_resolve_host.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/938730a1-138a-478e-8aac-c760f5e6439d/tijanufodidodutu.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/riesgo_biologico_laboral.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000aa5e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xAA5E 27744 bytes
SHA-256: 9698289a6d800c1b7b076914295fe4b8f0d7b8fb4ecd3253b9d00b4e8264f6aa
font_00_sfnt_off00006884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6884 3312 bytes
SHA-256: c61f2f97bdb998b4f92c7d56673ece40e5494be2cfb8699af240f2eac3936501
font_01_sfnt_off00007466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7466 4752 bytes
SHA-256: bbbf421c6bfd2c70d026337cc20611fd145bd401c73bc0465fc84067de9e4cca
font_02_sfnt_off00008478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8478 11572 bytes
SHA-256: 7d3fa4e3cb1b72cc4955e7766a251fce96f228580ea4a7015643b79a5a9bfb6e
font_04_sfnt_off0000dbd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD9 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c

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