Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d2e749a698f3ae4…

MALICIOUS

PDF

35.9 KB Created: 2020-10-08 20:42:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 5666356887c87c56aafb584e56b79c01 SHA-1: efe1e5dd71292560cdd6b99d72d29de4c1fa64ac SHA-256: 6d2e749a698f3ae4665586ad218a565ed0c58deb99a33a50ef6a383d32554987
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://ggtraff.ru/strik?keyword=el+doble+como+funciona+pdf In PDF document text
    • http://liloda.poriverapiary.com/uploads/1/3/2/6/132682829/2c5446d8.pdfIn PDF document text
    • http://files.daffodilacres.com/uploads/1/3/1/3/131383426/gatizoxezosedejuv.pdfIn PDF document text
    • http://files.bsascouts800.com/uploads/1/3/1/4/131409009/welulepusiwixuk-fevidutidun-tagegu-tinuxuripe.pdfIn PDF document text
    • http://files.olivetcongregational.org/uploads/1/3/1/4/131454316/7874457.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/1/0434/6911/1448/files/governor_limits_in_salesforce_apex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/2396/9699/files/mezefevitomevuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6369/6799/files/rupabivaxenufagubuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9097/5647/files/fokepiloliwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3406/6600/files/60998592762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9085/3540/files/bics_and_calp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/broccoli_cauliflower_soup_recipes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/4753/6798/files/dear_in_spanish_formal_letter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0693/4688/files/monkey_go_happy_marathon_2_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6221/3273/files/20891170879.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4463/7352/files/social_security_orlando_fax_number.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_off00004d3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D3B 5124 bytes
SHA-256: 232642cff81901ea8e6032ea725f6143c927ec2be0bd627992abac54d1506707
font_01_sfnt_off00005e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9A 10548 bytes
SHA-256: 22cf98ca182b3bd0be622bac567d74cf77ad0ed63bf5c0fc991e8d255c7e3fb3

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