Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6b2769c3fb1c3ea…

MALICIOUS

PDF

45.6 KB Created: 2020-10-26 17:45:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 752fdfb98422dbf9268e89b78d195d03 SHA-1: 30acf65919bb91d29dc89d9c1db90ce85064e78e SHA-256: d6b2769c3fb1c3ea96638d4118662ecbdf01a17d23781b35ccbdee8908426850
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://ttraff.link/pify?keyword=viper4android+phone+speaker+settings In PDF document text
    • https://senobatupubem.weebly.com/uploads/1/3/1/4/131437889/d8b4b6a.pdfIn PDF document text
    • https://kakoxisowi.weebly.com/uploads/1/3/4/3/134358665/8401043.pdfIn PDF document text
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/pagen-mugudimu.pdfIn PDF document text
    • https://tuvozejuwubox.weebly.com/uploads/1/3/4/3/134323710/5413700.pdfIn PDF document text
    • https://vezorobabuwej.weebly.com/uploads/1/3/0/9/130969079/vizodamuxumen-jibovimubudeb-wizigo-newara.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/5938510.pdfIn PDF document text
    • https://zafozudakajadev.weebly.com/uploads/1/3/0/8/130814863/kuwekewugi.pdfIn PDF document text
    • https://tenagudewujuga.weebly.com/uploads/1/3/1/1/131164273/9702759.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413966/normal_5f964b846cf81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384472/normal_5f8d0a771623d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378856/normal_5f8faa5e59d93.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000684e.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000684e.bin)
    • https://cdn.shopify.com/s/files/1/0467/9837/3013/files/25279745378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5008/1690/files/86511013371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3821/8152/files/await_for_your_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8147/2416/files/the_tale_of_despereaux_lesson_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9087/9667/files/can_you_build_android_apps_with_python.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 extracted file (font_00_sfnt_off0000684e.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000684e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684E 5304 bytes
SHA-256: aaf8dcb80a3dda39dc19a3944d4c928b315e0f64c1b9be05be8564826f5cc985
font_01_sfnt_off00007a4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4C 1964 bytes
SHA-256: 7c4880219e9625d2a4e9dd9baa4d28a857a57833d139bcdeda5c52338edb6e7f
font_02_sfnt_off00008358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8358 11020 bytes
SHA-256: 53460a7719ad31f591a669cb2f28dd739d79c60d93e69a5e29152f9bdedc3009

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