Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc0f57eb4535cb57…

MALICIOUS

PDF

59.5 KB Created: 2020-10-26 04:58:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25
MD5: 8dcb2e50419904eb003ddfb72fd6385b SHA-1: 42fce38ef9797d5093f16518aa52a43648e5051d SHA-256: dc0f57eb4535cb57a000c40c2eea4d02f33f8e21182332ab388192380cad3a79
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://cctraff.ru/aws?keyword=the+triple+bottom+line+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366337/normal_5f889ce722139.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387417/normal_5f928a155a711.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411682/normal_5f94c4dac4030.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393183/normal_5f92365f86084.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375703/normal_5f9087bd37e3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403817/normal_5f91c170a8409.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366374/normal_5f8f41b2e5b79.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379474/normal_5f96038814552.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/84806195910.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/types_of_aerofoils.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/bosch_automotive_electronics.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/states_of_matter_class_11.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa1f56db-9f8d-49d8-b786-ef849178ddbe/jogonibajowewapanada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ff68892-fdc3-4ca6-a198-4608c6f5bee0/dozemulegotunujotejekax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29e93f63-1ea6-430f-9689-c61b82dca407/94737396884.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb55dbd1-7dc2-4af3-b5e0-479650d72026/gukumomadefupokufufunuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6ee70f1-4f87-45d7-8595-656381797850/dosufulomidiget.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/dubovurefarugijejakulumus.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/room_sale_agreement_format_in_marathi.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/agenda_fiscal_2019_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/arduino_mega_2560_programming_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/11318464700.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0a412bf-eb67-499a-a275-d3f5d6a0293f/sogumafedikanorexukabigew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a8f913f-3240-4477-8a45-c0c6c1d19f7e/formato_poliza_de_cheque_para_descar.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_off0000aa8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA8D 4984 bytes
SHA-256: 89d3b4e59edd385730cd4bdae9272e9a0de37845345e6c39e588ed08ae2bd5e7
font_01_sfnt_off0000bb4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB4E 10868 bytes
SHA-256: 6790150b907a9555ce4533cbfd9ae16e28a6aea3bf5237ef8088e14808a12575

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