Malicious PDF — malware analysis report

Static analysis result for SHA-256 052dd11ec03b9cb9…

MALICIOUS

PDF

49.4 KB Created: 2020-11-06 14:38:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 86a7d16669e3874d62e9428a391cdfcf SHA-1: c8d3e72ff5951977a39cbc68a7c503f85b2776cb SHA-256: 052dd11ec03b9cb9a778632529d2a17c81752a3861eed9168e0128a5e73ea81d
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/aws?keyword=reds+stadium+seating+view PDF link annotation
    • https://tuvunexe.weebly.com/uploads/1/3/4/3/134327091/zodokimer.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415525/normal_5f9ac7a56eeea.pdfIn PDF document text
    • https://guferewefozitak.weebly.com/uploads/1/3/4/3/134393558/jinuzo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460946/normal_5fa3bc3f70c38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366359/normal_5fa3580c72962.pdfIn PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/481aec7a.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/gupawupigawono/diseases_of_reproductive_system.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/websites_for_anime_english_dub.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/najegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/3839/0431/files/angie_martinez_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0df7e1d9-5c5e-4093-81cd-1dc801c80273/1521456166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/3558/0357/files/dsw_check_order_status.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C68 5176 bytes
SHA-256: 9cbe4c1f49f8e27596ab4a5817131e4e85a0ba951f4c476d1a85fe0724da6f69
font_01_sfnt_off00007e0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0C 11028 bytes
SHA-256: 522c337d8d07caf4bc5def3929f5c8af07e91ea5dd8ab9652cb9df2aba73d084
font_02_sfnt_off0000a3f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3F9 16092 bytes
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2