Malicious PDF — malware analysis report

Static analysis result for SHA-256 d15726981b61fbe0…

MALICIOUS

PDF

43.4 KB Created: 2020-10-05 05:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 236566d297c3a61bbbaee52bf8935bcb SHA-1: 6157e40ce2b0309de1b5915d5ee3c76ba127877e SHA-256: d15726981b61fbe08df9446cccf28ada0f3fefca04d98c84c08030ed049cbb34
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=kubota+rtv+900+manual+parts In PDF document text
    • http://files.peggymischke.com/uploads/1/3/0/9/130968984/wabafezesomemuvo.pdfIn PDF document text
    • http://sewelixig.themediamanager.com/uploads/1/3/1/0/131070355/b8dafc18f346.pdfIn PDF document text
    • http://boneso.stfrancesbasketball.com/uploads/1/3/1/4/131453741/f71994dc8.pdfIn PDF document text
    • http://musajizu.chisagocountyfair.org/uploads/1/3/1/3/131379992/7287413.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/84c51191-726b-448b-8100-920655f0c5a9/927384917.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d1c04d7-75be-4960-a853-52c2e66840f0/xadiwexaxetamexa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa35857a-78a6-4cd3-81d1-f7cb262e18b7/makuleromaloronoxagat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a10a70ed-ddac-4068-bb18-a481671c2f68/16659311285.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/093f1201-f58d-467e-ab5d-056c5afb53be/sodosuxomilatijepovuwu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51766f22-81e1-4505-9735-21026326a5ad/14670872727.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce133798-0802-4ae2-82d9-72ba00ad2a49/78514387452.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a60b189e-2cf5-4c19-8475-fdbfdb34a334/tipotaguwotufusikan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58e400ca-9000-4baf-b018-3e1459b0654c/gosimukivimasir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b0ee33d-7601-4f51-84f1-d92bd2d01ecb/madutotewigufutadulomimu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcd092c6-c51f-462d-99fe-2cafbf0f6646/toramijodekuwile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/462a09d7-3db4-441d-bcf6-3f43fe57aa88/xabubemum.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/741abcb7-6ef1-4967-98ac-893e29d34ac6/57267932187.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2250bbc6-2742-4380-a8de-f728788fa645/11544073276.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_off00006473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6473 5432 bytes
SHA-256: 32c5a43b57e458b8e8c8c472314b21e0e164299b19d004df8c22c192d4637db9
font_01_sfnt_off000076db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76DB 13528 bytes
SHA-256: 7d015d861daaba1bc2d8fa02b6b208a81b830da4f5d0903205d1ce2903ccba7f

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