Malicious PDF — malware analysis report

Static analysis result for SHA-256 d495cb214f7d69ba…

MALICIOUS

PDF

43.0 KB Created: 2020-10-27 10:36:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 5dc1d026b0c9587a3c33d7ec2f39637d SHA-1: e05d24058a5f6f002bf13e6cfd7fd476212a1f19 SHA-256: d495cb214f7d69ba17788185c91a7fa0fefbba5c124a9a35776a398fcbe5ad4e
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://cctraff.ru/strik?keyword=india+vs+zimbabwe+t20+live+streaming In PDF document text
    • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/0ac65f19349dc76.pdfIn PDF document text
    • https://fidevawane.weebly.com/uploads/1/3/0/8/130814252/abe73ba.pdfIn PDF document text
    • https://mefemanodi.weebly.com/uploads/1/3/1/4/131454269/1067983.pdfIn PDF document text
    • https://dotofinadi.weebly.com/uploads/1/3/0/7/130740455/nupedebeparivo_ponakemolerov_lajipej_ferifalasew.pdfIn PDF document text
    • https://sagupegijugix.weebly.com/uploads/1/3/4/4/134443219/7789548.pdfIn PDF document text
    • https://lejigatoni.weebly.com/uploads/1/3/1/8/131871980/03cb5b1.pdfIn PDF document text
    • https://xonuveviriniw.weebly.com/uploads/1/3/0/7/130738603/f25d90e0f.pdfIn PDF document text
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/045b66.pdfIn PDF document text
    • https://putigazabikikim.weebly.com/uploads/1/3/2/6/132682718/dd82abe0.pdfIn PDF document text
    • https://nuvisinuxaxo.weebly.com/uploads/1/3/1/3/131383681/widafibit.pdfIn PDF document text
    • https://gewosawoma.weebly.com/uploads/1/3/0/7/130739201/dolirupeg_xetopubisi_gokut_vanibit.pdfIn PDF document text
    • https://satobolusiv.weebly.com/uploads/1/3/1/3/131398412/3705836.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006724.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006724.bin)
    • https://cdn.shopify.com/s/files/1/0434/8542/9917/files/8259483775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/0872/0547/files/schumacher_cargador_de_baterias_manual_de-4225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/2140/0745/files/13489279179.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c5fc7b5-8539-4c30-a106-4e3ca78cd7c6/john_deere_544e_parts_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6810/3077/files/mk470_tile_saw_specs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/5065/5655/files/number_5_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/4810/6649/files/17148918799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/9462/0333/files/australian_tourist_visa_application_form.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_off00006724.bin)

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6724 5696 bytes
SHA-256: b8e33f53235bc98abe5229c2f8ce0ad02403d90e8949bede1fc85a84df869454
font_01_sfnt_off00007a8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A8F 10804 bytes
SHA-256: 2d1bc84361bff35c49f0fb8b22bc4049b122210f8d9b98b7709e62381e1f0c83

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