Malicious PDF — malware analysis report

Static analysis result for SHA-256 e500ee44965b2ca7…

MALICIOUS

PDF

42.6 KB Created: 2020-10-09 02:45:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f1c6f0434fe917466d384656dd032b19 SHA-1: fe098d5b51cf7da9eb8801aca9c93952aabb04fd SHA-256: e500ee44965b2ca7c9f65dcd6a2bc923ad42e05f99d3e230d0ee240d752d430f
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://gettraff.ru/pify?keyword=the+son+of+neptune+pdf+weebly In PDF document text
    • http://dumexifov.datrav.com/uploads/1/3/0/7/130775029/2862435.pdfIn PDF document text
    • http://files.egwt.ca/uploads/1/3/2/6/132695511/tubituzab.pdfIn PDF document text
    • http://files.capecodoceanrentals.com/uploads/1/3/2/8/132816160/3673637.pdfIn PDF document text
    • http://wuwekenag.rivrvuefarmnranch.com/uploads/1/3/1/4/131408071/9cb6fab4f.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/1/0483/3463/5161/files/49952685652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1709/2769/files/mokidujijonimaxif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/dugamitix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/8874/1282/files/27757304092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/claves_de_gta_4_xbox_360_gay_tony.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fee92903-f044-490f-8d87-f70d1f489b53/12763804828.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad035d01-7c32-4c34-b5c9-f33eb546cc93/gokowegeboxotajezukekaget.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8105f533-e46c-4e97-830e-624460a288e2/96429268122.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b0175ca-a47b-4ba5-a348-e967fffa1f6d/64541477726.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/357e7f32-7591-498a-91d5-98877abad373/davipuji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4d473f5-f767-4066-a98e-491bd087369e/9782702991.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8291f9b1-2890-446b-8264-85f858ada633/97583029063.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f1d30dd-dc0b-4716-b89f-8c467f8a6901/xagazovitekedi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaa79a6d-4448-43fe-beca-3a509bb55f27/71818585175.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c8de21e-d449-4838-a487-690fa16036fd/tizodivajax.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6745 5104 bytes
SHA-256: 7a1f73e14a9167f8fce44a4595f403b1ec54b30a2a508082dcce2a4bd1e133dc
font_01_sfnt_off000078b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B8 11028 bytes
SHA-256: 1cba8cfc2473ca2876cbebadaf92fd0ff7900e93d0a30858d8ad78cb32abdccd

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