Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84f7e04406b2eac…

MALICIOUS

PDF

47.3 KB Created: 2020-08-30 09:20:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d059b253d9f0530c902f6aaca248597a SHA-1: 37ee77d72a6b9f2876a608657cf49322b6777f82 SHA-256: f84f7e04406b2eacfed9692466e23dc9396e7cea9e805b9012e93db4781f0e32
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting a lure related to 'free mortgage flyer templates pdf' and includes the malicious URL. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, likely for SEO manipulation to increase visibility of the malicious content.

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/wix?keyword=free+mortgage+flyer+templates+pdf In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/affb4a_eb83ae5253724bcfbfbe6dc00bba8878.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/50c35f_35d7eaa1926d4ebeba74d567a5a65e81.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/69b86f_9511d06d7f6e429bb510265b5dd0d8d9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/77d535_f86425e57cca4b3b99e5b2f23ced865e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0cb7a68ba40f40898af76c2d6bd1c429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5639/0559/files/paluse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4323/2661/files/68528313396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/16430565770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mitev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9925/0081/files/vurijitinewisogowapumok.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_8f138f1fae0d428ba3cdf4179ed268f2.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_eeb5fbc71b5f41eba42156967372d0cf.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cb4a18_7ae8241d419f45f48f7e9f8079d2b9fd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/3b47cb_f62f6b55995f480899b8b7422f7e7541.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_a14da25cc78048a3a60dba82ab30c952.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 3

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_off00007a81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A81 5420 bytes
SHA-256: 573af42d993b5e8f2f1d0947dfd0aa7b24f70c96f91d4d586bc9489613abbfa5
font_01_sfnt_off00008cdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDF 10400 bytes
SHA-256: 131c9efac628eb13eb086dbb876d975626a4d56c18585f38fd5dfdcf2b5b4209

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