Malicious PDF — malware analysis report

Static analysis result for SHA-256 51817421617ee311…

MALICIOUS

PDF

49.6 KB Created: 2020-10-10 05:59:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 7c3b0b26d3ce5b8267697715ced41ce7 SHA-1: 64dfef8f4ca00c24c7fc4ba42065eb4dc9dc0a96 SHA-256: 51817421617ee311d48347713290d0dc5a37726be82cc087f6d7d19d6c02fee9
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=precio+pastillas+meizitang+originales In PDF document text
    • https://site-1039500.mozfiles.com/files/1039500/jamokezorejofopulas.pdfIn PDF document text
    • https://site-1040987.mozfiles.com/files/1040987/97109438940.pdfIn PDF document text
    • https://site-1036737.mozfiles.com/files/1036737/nuretejuxaxa.pdfIn PDF document text
    • https://site-1036938.mozfiles.com/files/1036938/70314424306.pdfIn PDF document text
    • https://site-1036725.mozfiles.com/files/1036725/32151344559.pdfIn PDF document text
    • http://sipuz.southernbellepoundcakes.com/uploads/1/3/0/8/130813765/6055197.pdfIn PDF document text
    • http://files.flipscriptmedia.com/uploads/1/3/2/3/132302999/e2daa5d07a7d00c.pdfIn PDF document text
    • http://xitezowim.winchestersmilitaryquarter.org/uploads/1/3/1/4/131437393/3384163.pdfIn PDF document text
    • http://gejepirim.writingtotheworld.com/uploads/1/3/0/9/130970004/zetodadowiva.pdfIn PDF document text
    • http://faxiz.joshyblog.com/uploads/1/3/2/8/132816042/1007051.pdfIn PDF document text
    • http://files.ramblesandbrambles.co.uk/uploads/1/3/1/4/131453248/1e8ab5.pdfIn PDF document text
    • http://files.lottglobal.com/uploads/1/3/1/3/131383721/zelegijeduxuma.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/1/0428/5356/4583/files/32677390432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4467/9063/files/tongue_dog_meme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3388/5846/files/jabidu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/baseball_mogul_2019_manual.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_off00007db6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DB6 5304 bytes
SHA-256: f24b6f7761f8d4e31a5e7ba6655a606f09138e82300786818e11635260a2a66d
font_01_sfnt_off00008fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB4 12564 bytes
SHA-256: 220fcfc0cef33be610d77684aeedacfc090c2800adeb234b5605317da15ef259

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