Malicious PDF — malware analysis report

Static analysis result for SHA-256 af296cde06dc2333…

MALICIOUS

PDF

59.4 KB Created: 2020-10-27 19:57:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 2524176293969988634f9f585326f631 SHA-1: e5b0f7a9b8db1b1111cce2f2b21597902675c1ae SHA-256: af296cde06dc23337343fbfeadf1e0bd7e05ef3a59a739fee0c1c257fe8b6988
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=embedded%20python%20pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4414172/normal_5f94704ba8ded.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367017/normal_5f8abac0216a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367680/normal_5f8c0fa0d7036.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f87566982601.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/d51c8cc.pdfIn PDF document text
    • https://dejolezeg.weebly.com/uploads/1/3/2/8/132815968/ed6cb.pdfIn PDF document text
    • https://xonuvalax.weebly.com/uploads/1/3/1/4/131437330/misog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387562/normal_5f95696fa2708.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389571/normal_5f93c919daa94.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/7094/0070/files/doctrine_of_constructive_notice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8924/1258/files/cooking_mama_apk_uptodown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7652/7296/files/81761213208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3496/files/frp_bypass_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/4835/1944/files/73846211678.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1db3751-a82f-47e3-b9d0-c4962c323244/84268443429.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec0419ab-60b9-4f7a-b740-beda9abe6a4a/36226578517.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9a06f12-bd7d-43fd-802c-0def678b00ae/aproximaciones_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/4963/3950/files/97937030257.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9552/6049/files/concept_of_watershed_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7970/3451/files/21939818243.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000ae36.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xAE36 28180 bytes
SHA-256: 194e255639d82509e71ed3ff1cbcd9fb282b7dde3a8bcb76c6e6982061e9c2f9
font_00_sfnt_off00007754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7754 4964 bytes
SHA-256: e5be15ef750ba1541c026fc887cd4ab36a3f71bb62d65bba0556f30bec72c9c1
font_01_sfnt_off00008821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8821 11040 bytes
SHA-256: 44e2862a863055bf31565016ca72a1b899c0685f07bad87db842a68728e60c7d

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