Malicious PDF — malware analysis report

Static analysis result for SHA-256 13e6cd018eddbb9e…

MALICIOUS

PDF

44.5 KB Created: 2020-11-02 01:46:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 47fb9043d288c0d14cc2d722679eef17 SHA-1: 254cda42c2d42124faf09138895737b219bb7083 SHA-256: 13e6cd018eddbb9e0279bd02bc2c10c2355bd4554bac701d32af7027670095f2
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://ttraff.ru/pify?keyword=man+s+search+for+meaning+publisher In PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/lixavej_rivutavipulox_vunezikavad_lirumonoguwako.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/sidobojugonuxexoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402032/normal_5f9ecd50755f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387713/normal_5f8d7283bd10e.pdfIn PDF document text
    • https://pobafegesodagiz.weebly.com/uploads/1/3/4/3/134305133/vuzafew_dutipixore.pdfIn PDF document text
    • https://watinadapazibe.weebly.com/uploads/1/3/4/4/134492378/ziwugupili.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/17ffc3c5-4a6e-4a0f-81b0-0e54677d59b5/rupanodepigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65446b0d-8a85-4953-9af4-20aea40fa8b8/maya_borderlands_2_skins.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49ce5957-b5a1-4385-94bf-26fbc11ba37a/descargar_lo_que_quiero_lo_consigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4bee2db-bca9-485e-b24a-b1d16627b80b/i_95_virginia_exits.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f86823fa-7e90-4f4a-aebd-805c79429c99/tilapurabubele.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8ef698b-cb81-4fd2-bdb6-253a1790755f/14765016593.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b602fb54-e84c-4b9c-9c72-8fc456c1684f/lifumomev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/votedal.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_off00006e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9E 5572 bytes
SHA-256: e8a1aeee46042ba981b3060720478c6d81dd8bbc4522226756e04a69da8039f2
font_01_sfnt_off00008173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8173 10584 bytes
SHA-256: 3f068945ab3df934c6f2b6a7d1fedf713aa497eafea0bd8c1b39fb12c7bf6064