Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ab6ae25d35718f9…

MALICIOUS

PDF

46.1 KB Created: 2020-10-26 09:08:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: e0175f9bdd93965097515f58ff117584 SHA-1: ab6b44b90c2be7d71a4c0bb10e1054ed2988a779 SHA-256: 0ab6ae25d35718f9a80f5aec92e2db1e684760df539e90e8ff6df4a3db98d117
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=how+to+achieve+higher+consciousness+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4392191/normal_5f96110240b9a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393044/normal_5f8f9bacd0683.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366628/normal_5f872ed9af5c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365570/normal_5f88a6904dbaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366399/normal_5f871e2ad104e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368467/normal_5f924903dc14c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371523/normal_5f94dd14344c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366959/normal_5f95b4bde4c59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366015/normal_5f92511ed0847.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390330/normal_5f90c95424d83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369932/normal_5f931018717f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383304/normal_5f92c4312592f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5f944012172d6.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007225.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007225.bin)
    • https://uploads.strikinglycdn.com/files/c5720a59-389b-4f6c-805c-52c1e3d63f04/bigaxakokeniboxifukano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1df20b27-3d4b-4604-a918-3d4687ebe666/34042740243.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3a0fffb-649d-4eca-814e-e9c5c42d2a95/35583520018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f4b3bbd-ac55-47a2-a3b8-9aaa826c9582/html5_responsive_resume_template_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a38ea4b4-1c7a-44d7-98ea-58aa8c1c878f/mesedemanemenefuta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d36fe5d1-5c0a-4e54-9c0b-ab1f3a9b0c8a/93395544852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c01b1967-0bbb-4626-982a-a0efc8922601/72005988881.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51f1ce89-dd74-431f-99c5-fc9efda0d79c/87629791212.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1999eec5-db1b-47b6-96b8-663ddb8ae4f4/88123712381.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44334fcd-6f6e-473c-9be9-3ee1433c9aa0/jazidovixorisuxom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1fb77e0-799e-4f60-9ba4-978bc989d605/istatistik_dersi_nedir.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 extracted file (font_00_sfnt_off00007225.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7225 5496 bytes
SHA-256: 8c31c6970e5cc25bc2953a83cad765879a5be6f32b94ed6688d41374b1883d71
font_01_sfnt_off000084e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E9 11280 bytes
SHA-256: be900207aae376ab9bd8cd7d1038dd728ccef016f694f9c98ce93ec258fc7c46