Malicious PDF — malware analysis report

Static analysis result for SHA-256 6abebde3966c6e96…

MALICIOUS

PDF

39.9 KB Created: 2020-10-29 03:42:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 0e77ac25fd7008269914151732e00b6d SHA-1: ab81af42baa3ba31ecf13c891f0e62e70c6c18eb SHA-256: 6abebde3966c6e962f2e25a57a3ff322ef6bd5f5d86f05dee4ba8fac12cf4deb
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://ttraff.link/123?keyword=dark+souls+poster+map In PDF document text
    • https://cdn-cms.f-static.net/uploads/4390382/normal_5f999f560477c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370555/normal_5f8ef17b9d6b9.pdfIn PDF document text
    • https://savakorudefipe.weebly.com/uploads/1/3/2/3/132303238/313ec98f2ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370275/normal_5f88908554e99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378152/normal_5f92024d02951.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385231/normal_5f984ef9decb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f8713d01db2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366041/normal_5f8701fb2772a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368735/normal_5f8bf155bf15d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373985/normal_5f95c30997703.pdfIn PDF document text
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/pikus-tuwetal-voruvereb.pdfIn PDF document text
    • https://gowiwoniba.weebly.com/uploads/1/3/1/8/131857243/godebisewolasexisavu.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005077.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005077.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000849f.bin)
    • https://uploads.strikinglycdn.com/files/06ee4b57-8ee2-41bf-9f82-cb2c518d0992/5745593820.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3141dc42-c96e-4c61-9fd9-b007269c5889/50530349241.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29a878a4-2257-4676-b0ef-c310eb7050ce/sitajaji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a76d110-16f2-4c11-a8af-e71be8d0115a/70565998378.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_off00005077.bin)

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5077 4756 bytes
SHA-256: 10efdaf7065e32dc683eb72a4d624ec8545b59c63ce95a18bf7482e0db6e5dd9
font_01_sfnt_off000060b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B6 10500 bytes
SHA-256: f8f6a91593298df9acbfcfca92b0344c1e7139bfd5ecac053e8e5e0be6cf122d
font_02_sfnt_off0000849f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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