Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e6f4d48c3b9e973…

MALICIOUS

PDF

44.7 KB Created: 2020-08-20 06:59:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d186519d926e7ddc43e7d61aa355b93b SHA-1: f0ae36a74751d1b3fa5cf39369811fc36e7d12ce SHA-256: 7e6f4d48c3b9e973b963394ae097c812c18f7d6d65a0c4c6024c903c15451e93
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to lead users to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple SEO-themed links suggests a campaign to attract victims through search engines. The primary malicious URL identified is https://ttraff.com/pify?keyword=core+muscle+strengthening+exercises+pdf.

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.com/pify?keyword=core+muscle+strengthening+exercises+pdf In PDF document text
    • http://tavanarix.kpcecala.net/uploads/1/3/1/3/131383770/kitafituvozowusale.pdfIn PDF document text
    • http://files.mentalhealthgps.org/uploads/1/3/1/1/131163872/5a5267d28c.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/1/0432/7247/0686/files/17904700367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0191/3244/files/images_from_google_spreadsheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/1287/4394/files/34878212248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/jquery_ui_cdn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/patixukelikugopenolosawiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4494/4542/files/kizikutavutupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7191/7471/files/connectors_list_with_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/pazodozezusumak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1614/2497/files/gumivufedobokatit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30617095305.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_off00007201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7201 5332 bytes
SHA-256: 32d7f9694bc20687d866a29552abed2c6725bc0abb198f9d8fd3dff05f2dcfff
font_01_sfnt_off000083fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83FA 10036 bytes
SHA-256: 5cde1d892221991689abd3c1a499bec9e48ca1408da4b8d25168e764a9669da4

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