Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf5291213f330b89…

MALICIOUS

PDF

53.7 KB Created: 2020-10-09 05:54:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c617985da36a4efbcbd25fcf287c5d0a SHA-1: 3f6db85e4e04a42e5c197afad117001ace860779 SHA-256: bf5291213f330b896cd735b7619a83a453487e40fbe6a415511faa5f52b5fa13
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=car+mechanic+simulator+2015+guide In PDF document text
    • http://toteresi.tuitionchemistry.com/uploads/1/3/0/7/130775584/lalimena.pdfIn PDF document text
    • http://files.portfairyjazz.com.au/uploads/1/3/0/7/130738503/jidusenof.pdfIn PDF document text
    • http://files.cottonwoodspringstudios.com/uploads/1/3/1/1/131163927/6c71d1b4acca266.pdfIn PDF document text
    • http://files.newlifeduarte.org/uploads/1/3/2/7/132740724/01e1c.pdfIn PDF document text
    • https://site-1038700.mozfiles.com/files/1038700/vilosapidixizezi.pdfIn PDF document text
    • https://site-1038321.mozfiles.com/files/1038321/pixiv.pdfIn PDF document text
    • https://site-1037273.mozfiles.com/files/1037273/95777576693.pdfIn PDF document text
    • https://site-1042711.mozfiles.com/files/1042711/tibiniburakakomulisa.pdfIn PDF document text
    • https://site-1036956.mozfiles.com/files/1036956/40080530120.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/1/0427/4143/2487/files/ea_worksheets_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7755/3314/files/wafigirip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1739/1258/files/penisaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/runasirimekebazinulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1771/4334/files/lununibudosezanaxok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/1613/7122/files/pujij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8963/4491/files/museum_registration_methods.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_off00008d8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8E 5708 bytes
SHA-256: 4b6f93171eba3783efd0a22c3b828401596e623e5afe7cb250061a13dbafade2
font_01_sfnt_off0000a0d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0D6 12708 bytes
SHA-256: 46612c54e0c558d7c30c59a49ce4d49b17e225be053a4ed6553efc12e109a5ae

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