Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a2b64202e6bca09…

MALICIOUS

PDF

44.3 KB Created: 2020-08-12 22:46:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c61a230b4382258f3ba5dc4c4198f9ae SHA-1: 2de373f49c6eb011c32090671236abcded623f8c SHA-256: 3a2b64202e6bca0933064df5bbd91742cf4f3a61ff64d575ed0c4de7d7e65da3
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.cc/pify?keyword=abbreviations+of+computer+hardware+and+software+pdf In PDF document text
    • http://files.beverleystudios.co.nz/uploads/1/3/0/7/130740323/zowiloxazagosozaw.pdfIn PDF document text
    • http://files.friendsofbishopswood.com/uploads/1/3/1/6/131606546/9374360.pdfIn PDF document text
    • http://files.denbighlocksmiths.com/uploads/1/3/0/7/130776449/rofevifatunop.pdfIn PDF document text
    • http://files.thewaveindustries.com/uploads/1/3/1/4/131413837/a1b902b2.pdfIn PDF document text
    • http://pijipow.dcaravanviral.com/uploads/1/3/2/6/132681556/1772888.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/1/0436/5202/2430/files/12722945473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8876/5337/files/aprendizajes_clave_para_la_educacin_integral.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/zujakadiriravirazifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9823/4270/files/narafuduzas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0594/3701/files/game_of_thrones_deleted_scenes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/sisimanubomugojiwegajob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3791/6312/files/36002798407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9255/7467/files/mixofab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/35178133782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/vukax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/9411786557.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_off00006ed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED3 5644 bytes
SHA-256: be18ba914a481a14e8383544ac9888bbde0c650e1635749e4bb63b2e9b1680d9
font_01_sfnt_off000081e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E4 9988 bytes
SHA-256: 4dabb9850cde8ca01a5844181f7ceeaadade73b0214741a62450b708d4b58794

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