Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd0e31ea109fed2…

MALICIOUS

PDF

42.4 KB Created: 2020-10-03 08:26:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 668b67d1d82f21f30adcfffc56692ec4 SHA-1: e25baad2c33a1364e328110cc098b5a2b215be0c SHA-256: 5cd0e31ea109fed20293fbc0ba80c73f05125b15ff6fa6001019e2ae96466952
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=libros+de+harry+potter+edicion+especial In PDF document text
    • http://kadukab.flairrealty.co/uploads/1/3/2/6/132695675/880691.pdfIn PDF document text
    • http://lufugupob.roseonaglobe.com/uploads/1/3/1/3/131383647/wulupujen.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/1/0498/1037/4810/files/vurudaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0485/3402/files/nuxewos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2175/3256/files/2528726354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6278/8245/files/89141841506.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6463475a-d110-4d7b-ae57-2dbaba3004ea/91078057382.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/871fbd9f-d7d1-4127-821e-124124c87eff/37858711293.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae01286c-5fe3-4c3d-8bec-2b086aaac173/vitukokufirodiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df19d563-a27f-4a52-afaa-96fc72f32739/18845567657.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9397ec46-fb65-45a5-a90f-840477035aee/55008900585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/0786/1926/files/how_much_does_a_sweet_potato_weigh_in_pounds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9565/2504/files/dark_souls_2_bluemoon_greatsword_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/2832/7831/files/55925616864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/jin_kazama_tattoo_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5018/4085/files/98794050691.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 1

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_off000062c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C4 5344 bytes
SHA-256: 962d971178ed3d9b32bd1541bf7cd84bf931ec51e4df09603080c8ec1ce3c777
font_01_sfnt_off000074ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74EA 11672 bytes
SHA-256: acf41e14a8d8fcccbca215208f0a1d22c0e4650feb16f0de26d9856725da6348

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