Malicious PDF — malware analysis report

Static analysis result for SHA-256 c07e912018ae2015…

MALICIOUS

PDF

43.0 KB Created: 2020-10-10 09:21:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 60ae696f3f99bef63d74e349635731cd SHA-1: 6193a2776ff1acb89e5e9338f8ff09d64f738c9b SHA-256: c07e912018ae2015647a189f30bc61cafa52ccea3af8d5a30d752cffcdf065ba
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://cctraff.ru/strik?keyword=open+enrollment+2020+dates In PDF document text
    • https://site-1048208.mozfiles.com/files/1048208/gipugabuwirimifojegalab.pdfIn PDF document text
    • https://site-1037848.mozfiles.com/files/1037848/28027146893.pdfIn PDF document text
    • https://site-1040238.mozfiles.com/files/1040238/towimupuzageguwo.pdfIn PDF document text
    • http://fopum.bjmatthewshomerepair.com/uploads/1/3/0/8/130814229/muwatoxaxiwekox.pdfIn PDF document text
    • http://topog.boostfitness.co.uk/uploads/1/3/1/4/131406798/xereladatutifuvixaf.pdfIn PDF document text
    • http://wopebedab.theflorecerproject.com/uploads/1/3/1/3/131379478/masedejasurekawuwe.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/e4f4be69-2035-4b11-a89f-2a7e220eb327/2985121694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1575cab-770a-42a5-9644-38f5e1c55bc7/39058694659.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e38ea6e2-6c02-43b3-b159-641b2f49fd49/weveronetazabi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c53dc278-1d0c-4773-8844-017588c56a14/tupiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/0206/3780/files/80005164567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/0303/9903/files/81551935364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9088/9889/files/gujakokewoluzaror.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0413/9416/files/fighting_rooster_breeds_in_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/0041/6414/files/zefulajixesisibodidiv.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68B1 5404 bytes
SHA-256: 38254f065b2cd40bc85ccd554e8bebbcac7db9413d9d3da4a9c1d567abf43133
font_01_sfnt_off00007af0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF0 10816 bytes
SHA-256: 5d5c7a6a4dbb1e2bcaf3bd7e777346d0e7c7b2ce19561020330ce23cb7f120e6

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