Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d14516a873979b…

MALICIOUS

PDF

65.6 KB Created: 2020-10-29 18:10:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: ef582e84b3c67fa88ab449b157d39398 SHA-1: e0bac7b2b23363b886343f046db078887194bb42 SHA-256: c5d14516a873979bba7dfa5c27e8c6fa0436f890cedb37c5c2032e1fa97236e9
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=autoridades%20agrarias%20y%20ejidales%20pdf In 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/2a5c6706-763b-442c-adca-14a346913dff/guide_assassin_diablo_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0458e4de-3ffa-4e49-a046-e19552144292/zunojesovitenej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6961/1932/files/rupekufuwex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/541144bd-76a1-4163-8354-6645c3acebe1/goselifaf.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/lindsay_phillips_shoes_ebay.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2415da62-0f43-42e6-a673-a645d1549d29/white_and_red_plum_blossoms.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/hybridization_biology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9300/9604/files/487859886.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ab4f7290-3185-4201-a695-940cde0bdc17/lefaxewubikozurobesu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b38e241f-fcc4-4965-8f98-27e0a51ec261/gorujizavanaxusevoxigugun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/6294/9551/files/munirifurupusitojotabag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70cd3ff4-666e-4001-8832-3b20a4d2f716/ugg_sizing_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/4424/6981/files/instructional_technology_jobs_plano_tx.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/puwesuzakuputerejevejulun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b580d00-c191-4dc5-9c7c-16b0eb311bd2/the_coding_manual_for_qualitative_researchers.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000aad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAD5 5376 bytes
SHA-256: e6ebbbe1187840110ab5079c5d38856f3e419977bbf7eaaa5992b33306013080
font_01_sfnt_off0000bd3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD3B 11808 bytes
SHA-256: d89be60af94351cc156f05918ccf1031bf4c7276e01c21cbc36cbc98b6607ffb
font_02_sfnt_off0000e311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE311 16028 bytes
SHA-256: 7685d0f642f6870cd72ae92e109e88005a8e1edc70187c8d6224f9266a3bc91c

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