Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b0fbd9a063f5b89…

MALICIOUS

PDF

45.5 KB Created: 2020-10-10 03:28:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 01f26031a197ca4d9664df78101f258c SHA-1: 664a4570d7dad46a4d091f9664b8fd06b4e94691 SHA-256: 0b0fbd9a063f5b89db11aac8e0553b245ccdd6891d30092c7c1eb463a8296695
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=rush+episode+guide In PDF document text
    • https://site-1039931.mozfiles.com/files/1039931/29531181786.pdfIn PDF document text
    • https://site-1042840.mozfiles.com/files/1042840/25798383518.pdfIn PDF document text
    • https://site-1042442.mozfiles.com/files/1042442/12344996625.pdfIn PDF document text
    • https://site-1036885.mozfiles.com/files/1036885/powunojedozanajawev.pdfIn PDF document text
    • https://site-1036744.mozfiles.com/files/1036744/bimetapugesanenojusesesel.pdfIn PDF document text
    • https://site-1048224.mozfiles.com/files/1048224/niguvavutelogaposenow.pdfIn PDF document text
    • https://site-1039645.mozfiles.com/files/1039645/vubutevawomavigot.pdfIn PDF document text
    • https://site-1039140.mozfiles.com/files/1039140/donivosak.pdfIn PDF document text
    • https://site-1043608.mozfiles.com/files/1043608/45526181773.pdfIn PDF document text
    • http://files.dcsq.org/uploads/1/3/2/6/132681479/7523085.pdfIn PDF document text
    • http://files.catherineluckychang.com/uploads/1/3/1/4/131437725/4996099.pdfIn PDF document text
    • http://ritinugad.ps212teacher.com/uploads/1/3/2/7/132740228/4697454.pdfIn PDF document text
    • http://files.emilyeaglin.com/uploads/1/3/1/4/131438397/3e79e7.pdfIn PDF document text
    • http://pesov.melissahaneyart.com/uploads/1/3/2/8/132816091/tifadi_topumegukijip_revuxitev_muzeloxowobop.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/1/0431/3051/9709/files/23570929526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/6451/2678/files/g35_body_kit_canada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7222/5442/files/lozunefinanodebewepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/2806/5689/files/40329832595.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

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_off000076a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76A7 4888 bytes
SHA-256: cba1afe7c91c259ee7861fd5681ea0a903e7157e91562a0fafeb7a7d21573821
font_01_sfnt_off00008751.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8751 9924 bytes
SHA-256: 13669aa6f82d18bcd399d66aaf91849901439001c849c77aaab01c59c524acaa

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