Malicious PDF — malware analysis report

Static analysis result for SHA-256 679e4983148d64b5…

MALICIOUS

PDF

43.5 KB Created: 2020-08-03 00:11:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a9253678e021bc38ed8837be1fdeeca4 SHA-1: c4043d78b5c1a6b6239663de628f4288c8738cbe SHA-256: 679e4983148d64b562648e5def393963efb2dc78953c7f1bdde943ed73ae377d
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links and a specific URL that redirects to malicious infrastructure, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The document body and embedded links suggest a phishing attempt to lure users with a fake offer, likely leading to further compromise. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=eshop+codes+no+surveys In PDF document text
    • http://files.quantumpoint.org/uploads/1/3/0/8/130874031/fexurugomaseba_livorejalolokib_kuluvewowa.pdfIn PDF document text
    • http://files.6224marketing.com/uploads/1/3/0/7/130739537/0aec5ee.pdfIn PDF document text
    • http://files.scottishyouthballetgrandprix.com/uploads/1/3/1/4/131437984/801033.pdfIn PDF document text
    • http://files.kierstenparsons.com/uploads/1/3/1/1/131164472/kaxetumeluribigumesi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/40890654940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1044/0859/files/dd_form_626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31995481059.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9616/9886/files/rafigawemuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1268/4967/files/jateketi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7922/8833/files/human_biology_mader_14th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3978/5111/files/risazulomokupukodedonuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6072/3865/files/mesitoguwomip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/40952316994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/geresomajefidosutisobatut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1065/files/79502062531.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_off00005f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7F 4792 bytes
SHA-256: 1bea47ea154c0d6666541388ab5d411b61e6cb386be1b8c74acb3f9b1923eb26
font_01_sfnt_off00006fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB8 10392 bytes
SHA-256: d0f3e21523eeebf932a167312deb34c31b4b1048652ad9d43212f78011d2c6f5
font_02_sfnt_off00009340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9340 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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