Malicious PDF — malware analysis report

Static analysis result for SHA-256 72c2025d78a34a27…

MALICIOUS

PDF

41.5 KB Created: 2020-10-03 18:17:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 3152ffb2704c084508658d012fdbf938 SHA-1: e3f2d84aa4f0139e1bc60d765052998517202c05 SHA-256: 72c2025d78a34a2792ab1159dd9786f63d7d7d97412e38524a3ed1eb7a47fd70
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/strik?keyword=magellan+pipeline+asset+map In PDF document text
    • http://mozesor.seethroughmyize.com/uploads/1/3/2/6/132680869/8149165.pdfIn PDF document text
    • http://simap.pleasantpondgoldens.com/uploads/1/3/1/4/131483371/wudaz.pdfIn PDF document text
    • http://files.thibeaulinguistics.com/uploads/1/3/1/4/131483282/wurubasetu-valobisukok-budodaguwer-linixijiro.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/1/0486/6664/0534/files/kill_shot_vince_flynn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1248/8348/files/35755849708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/1654/8262/files/vizibulekijek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2239/3244/files/88570227036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/1118/0197/files/numijebutopuruv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0051/8040/files/gajexotawiluzap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d653cced-9043-41af-b711-f40dfaf4d77b/ritudometifibujiriz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcf9e909-a2dc-4b16-a24b-5b9187f7749b/dezupomoxasatejij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/050ba373-d12d-41b5-a2fc-51b2258a2a68/wevunuda.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_off000064f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F3 5048 bytes
SHA-256: ed612e564f04f08e60a5578767ea7ffac77a2bd33e2820cd96a2f13a41d2b05f
font_01_sfnt_off00007620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7620 10428 bytes
SHA-256: bc38462d348d9722f3e19a33608c8e22e8416cc787379047737a8a31fd1c2a08