Malicious PDF — malware analysis report

Static analysis result for SHA-256 86eb6b1a9844739c…

MALICIOUS

PDF

42.1 KB Created: 2020-10-01 16:59:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 19e4287ae03aa52be4de9aaec67e8ada SHA-1: b40c181273cae125712dcb9c9acd5baad0edd986 SHA-256: 86eb6b1a9844739c44439e4cb36f28638a553bf3c92bed136f62f82702d708e4
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://gettraff.ru/strik?keyword=swearing+is+good+for+you+book+pdf In PDF document text
    • http://refitalu.bibslovelypam.com/uploads/1/3/0/7/130775195/1269564.pdfIn PDF document text
    • http://pazewoko.atwatervillagepsych.com/uploads/1/3/0/7/130739346/36363.pdfIn PDF document text
    • http://lemoveri.cccband.org/uploads/1/3/1/3/131380345/jakimi-lagibiwufazap-xabajuga-genisufenow.pdfIn PDF document text
    • http://files.worldchamptkd.com/uploads/1/3/2/6/132681026/3937299ec19b.pdfIn PDF document text
    • http://wabojab.scoffonilab.com/uploads/1/3/1/4/131453574/reped.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/bb103b6e-eefc-465c-92d1-3d74064a87f1/xatoxakusamaveju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f192d4ec-215b-459d-a57d-e17a5bc86a18/zexusafiwoximebi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bf87898-e814-4765-81fe-6e83d8e83614/getogogo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e3d7559-5f5c-4604-8d74-18c1f3b29aff/relidufeve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d89bfbf-68b8-411e-b22a-bb7823ba2462/nakupepaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/702c208d-b9cb-4aba-93a3-c49f244cfeed/roxufabaruwase.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44693230-5602-40dd-b1c3-74eab23f1a78/dogatudikavibuxitare.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df4aa075-e459-4fcf-899a-f6f3bf37fc3c/wenegoxalukedefuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78635d0f-e30e-4fce-9569-fc002c0c9fc8/76143610286.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_off00006603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6603 5676 bytes
SHA-256: e004f13e221f884c694ac4d9089093778f1bd5fc614236b649f58211f8b7b235
font_01_sfnt_off0000797e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x797E 10004 bytes
SHA-256: 02f32e0491b1f1ac961e3848681777cd6b94b835b0a0b580eb915f7ee2349788

Open this report in the interactive analyzer, or submit your own file for analysis.