Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc1ca609a80f3166…

MALICIOUS

PDF

44.1 KB Created: 2020-10-17 23:42:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c68a286e712854bd397b496193372c2e SHA-1: fdea3570e4793d07297d999e5ba075acc003cfd6 SHA-256: cc1ca609a80f3166ee319810b3a2817a427f2725a7824affe91839cb41151365
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.me/123?keyword=healing+your+inner+child+pdf In PDF document text
    • https://wesoxiworikezux.weebly.com/uploads/1/3/1/3/131380467/bawasumu-lanaxolenejusiw-natibix-borakosuvo.pdfIn PDF document text
    • https://dagigokes.weebly.com/uploads/1/3/0/7/130739756/5e20c36439039.pdfIn PDF document text
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/9093475.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/3616179.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/xovaragimogerem.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366027/normal_5f87b3710b211.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365594/normal_5f87317a7ca64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375886/normal_5f8aa8050d046.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372104/normal_5f895c531fc91.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/8972/6107/files/hardin_county_detention_center.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7865/7212/files/nujikiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1270/1854/files/infinite_design_apk_full.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4229/files/zoom_chat_room_numbers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/9963/3829/files/kodufozanimejufukeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/7005/8407/files/boat_purchase_agreement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2564/7784/files/93542134691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8067/4197/files/wutab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d096fc5a-b1a1-4ee8-90da-387bc5849be1/39727714770.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b221775c-fdd2-4b9f-aefe-3416df19ad4d/felanaputemun.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_off00007013.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7013 5304 bytes
SHA-256: 4a76bfd1c44b209413abee55dd060755cf6aff02d3e77031aabfef6d65f23fb7
font_01_sfnt_off00008212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8212 9588 bytes
SHA-256: 7d28a448d54948b079132da741a5669172b0d350b23a651cc723045b40c6ae44