Malicious PDF — malware analysis report

Static analysis result for SHA-256 dea208d66dc631ae…

MALICIOUS

PDF

47.1 KB Created: 2020-10-15 14:56:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c0bc4200cefaf5a5603336a36fcacc4a SHA-1: 74461511316475e410cec784f1a0db0b8aed7a2c SHA-256: dea208d66dc631aed6dfe4ba96d7f53232cae869629cc55a28be8f682879032e
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/pify?keyword=mcafee+siem+product+guide+10 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366010/normal_5f870c8b036a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f88247203e6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365635/normal_5f870355125dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368506/normal_5f88056767a45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366045/normal_5f87059074348.pdfIn PDF document text
    • https://site-1036775.mozfiles.com/files/1036775/zejota.pdfIn PDF document text
    • https://site-1041282.mozfiles.com/files/1041282/33096345395.pdfIn PDF document text
    • https://site-1041086.mozfiles.com/files/1041086/butefalunomafebila.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366647/normal_5f87406050ed5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365661/normal_5f870ec6788b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366327/normal_5f870d993b6d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f871894d127a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365546/normal_5f8752f77fc8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f877e3384b64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366302/normal_5f87707a27f03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365612/normal_5f872441d8a6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366018/normal_5f87601f5f26a.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/44274af6-52c2-4e35-bf36-df99ed224895/tawunuwaniteguweb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/547e073b-be1b-4fc7-a058-0ec968e286ee/21819942164.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/febe09c9-f6fe-4030-8182-8b6de8a57c43/gajojizepigit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5f37ae1-ea21-4145-9c02-56f152b12933/27544499194.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_off000077b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B9 5640 bytes
SHA-256: 3d3d2d7a7eed557eacfeef07b4f914b717086a7d79c9b90495211c37171adb6a
font_01_sfnt_off00008ad7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD7 10592 bytes
SHA-256: df529e6ba63618fede3821f00c186cdd28b260f25b63d79f8d25800c32bd7f30

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