Malicious PDF — malware analysis report

Static analysis result for SHA-256 859ac10187ed005d…

MALICIOUS

PDF

53.6 KB Created: 2020-08-12 12:11:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 616d2afcb6aab0403f36aafd35d0cc6b SHA-1: 072f00a87fac25014fd606e61895dd4120992dec SHA-256: 859ac10187ed005d6948e83097459fe3493b8c33f0cd4527ad4deb9dec108f87
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and redirects to known malicious infrastructure, indicating a phishing or scam attempt. The embedded URLs and the document body text suggest a lure for a "free download" to trick users into visiting malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.ru/pify?keyword=stupore+e+tremori+pdf+download In PDF document text
    • http://vutepere.noblegoldens.com/uploads/1/3/1/6/131637814/dejeraguguf.pdfIn PDF document text
    • http://files.morroandjasp.com/uploads/1/3/0/9/130969375/wojerodijudo.pdfIn PDF document text
    • http://tukuvat.lavedettebooking.com/uploads/1/3/2/7/132710797/660df9d82f346.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0435/9605/4690/files/vupap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7873/0403/files/backup_bookmarks_firefox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6401/4501/files/metaxelinujolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/amsat_journal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/letut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xakisone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3910/4930/files/36495513264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5687/3128/files/25502128701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4156/1503/files/pekosoxusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6482/6773/files/42058213072.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5887/8881/files/13094760430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6127/8870/files/virukakumifepumejalarod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/21884084963.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81BC 1604 bytes
SHA-256: 565e99d64711d6a9d59e14760bea8d85aa0dcd6973454cc7c2ff7caa52474b5f
font_01_sfnt_off000089de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89DE 5204 bytes
SHA-256: a7dcf93e98dd01166422eb9a031e8b7968ebe1f6adc2265957994776f6160eb7
font_02_sfnt_off00009b8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B8D 14696 bytes
SHA-256: 59fff17a19f936a397ef6a6c9e59ac66b2a209eeed8d2a064067d50497fffc42

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