Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6d26a23dfb323d…

MALICIOUS

PDF

43.1 KB Created: 2020-10-30 23:37:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-17
MD5: 597cf7cc40582e846e67308f4562dfea SHA-1: c79841617014ba009cf78376d32645e4d49f3a00 SHA-256: 2b6d26a23dfb323dc19f24ebba2e986efd372e056c91844584336132787e88dc
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=english+bill+of+rights+simplified In 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/1/0502/7092/9049/files/aging_backwards_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad72409d-1e73-4abf-ab9b-b2c8aa51f763/zevigipilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9905/3988/files/85196998980.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a95f11db-d507-4054-aac8-6e48c7e9f4bf/32284794487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8266/2553/files/rolls_royce_wallpaper_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c55a1376-5e32-45fe-9c58-5d8009a0a51f/2192902797.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95516d98-b60c-42b1-a50a-c21e1f08b871/ln46c630k1f_no_backlight.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/social_psychological_theories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/6612/5219/files/1155236253.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4aa12289-2dc2-4e1f-8b44-f8f3498b7e53/nozamorejuperuzutejev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bbe4f44-8ef7-4d6e-93ca-ed527eb079f4/98574385427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9802/3086/files/27607949678.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79001dad-3515-44f9-b166-0a8104c919a3/78489481423.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6611d34a-b764-48c3-b7a0-8842576abf82/52183111100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/8293/2936/files/44393757902.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_off00006a66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A66 5344 bytes
SHA-256: f37056bf5921e358f318b45af7469330174a736b6087cc4181ddd760ba8f4ec2
font_01_sfnt_off00007c69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C69 10236 bytes
SHA-256: 9b131f6b6c11266bee7170c22d455d2f671e5013f4a8b0bb46de86c87cb08cc4

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