Malicious PDF — malware analysis report

Static analysis result for SHA-256 6089411159b80bca…

MALICIOUS

PDF

43.2 KB Created: 2020-10-14 21:00:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0cab710fd5e853154ca96a041b48b5ee SHA-1: 0677c13e402a1225891b7d6d05d9c2d58214776e SHA-256: 6089411159b80bca68cbcbfd9fb3e05bed3464dea160dfdefc534f5de863d955
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/123?keyword=albion+online+crafting+focus+guide In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365563/normal_5f87003e3a6f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365563/normal_5f871261007ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366041/normal_5f872246c511c.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/wirexanusir.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/vepulakanug.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4045700.pdfIn PDF document text
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/nifit.pdfIn PDF document text
    • https://pivozedotafi.weebly.com/uploads/1/3/1/0/131070355/xuguzebejazeg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366312/normal_5f8723af1fbde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365553/normal_5f87157fb4681.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366040/normal_5f86f93d5f68d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366009/normal_5f86f4eb46b0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365656/normal_5f8704fb59fd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366359/normal_5f870eff152d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f870a402bddb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_5f870c40c1bdb.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/c0f55024-0070-47f3-acc1-a1f79a8996a4/tumarasugewikipovo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6aa0194-d535-41dd-83e0-03decf86737e/76738750997.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de01e1e5-5ab2-4079-acd8-0bc33efcc5cc/devobuvi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91a105c3-10d9-4824-a83d-534cbc6f1949/5144482647.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85c94248-5b97-4c76-a7be-988138b5eb8f/71133366986.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2daeb4a-ebd9-4bd4-8fb0-c073c084422e/jolapuxamufodexi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec0d5a13-b6d6-4dda-8550-3851c244c228/54933426632.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_off00006929.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6929 5316 bytes
SHA-256: e4768fa239e9c7ba130f9619f8817415e67ed6c64bc894329810ac8c6fc4654e
font_01_sfnt_off00007b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3A 10512 bytes
SHA-256: 2636eb165ebccb49821c86869aa5ae454d69f6a54b42d5b435e973462604f8b8

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