Malicious PDF — malware analysis report

Static analysis result for SHA-256 75fe9b016def6a99…

MALICIOUS

PDF

62.8 KB Created: 2021-01-01 06:12:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f9c5afb1d1c2176922e4266e46ad455 SHA-1: 580588b40b504983f3e5d409cfcf3b1ca8ba857a SHA-256: 75fe9b016def6a997f66d3886868e0e2d3c9fc78282e791055e9410439e27818
254 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector and part of a link farm, designed to lead users to external sites. The embedded URLs, specifically 'https://ggtraff.ru/123?utm_term=speaker+grill+foam+australia', are flagged as malicious redirectors. This suggests the document's primary purpose is to trick users into clicking malicious links, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ggtraff.ru/123?utm_term=speaker+grill+foam+australia In PDF document text
    • https://cdn.sqhk.co/titolegun/4ha62jc/67046718207.pdfIn PDF document text
    • https://pilolekolaf.weebly.com/uploads/1/3/4/6/134655903/6608890.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461746/normal_5fdf829ea53a9.pdfIn PDF document text
    • https://cdn.sqhk.co/rotogogoji/Ugd5Ggd/sazisikafenamonalo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388165/normal_5f92f681941b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376612/normal_5f8d37db8177d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381539/normal_5f8f28a832640.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/5Thco5i/nerorilunewafot.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxabofapuw/igEbujg/jipafawejikanubogazini.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a73eeb4-80e1-4377-a81d-ff0807c6a18a/80010193348.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/bittorrent_client_for_ubuntu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a81dc1f-cf4a-4c89-9487-be9e8de40018/oak_view_middle_school_start_time.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f1634e1-b330-49eb-a517-3132a2b9fbc9/nusadi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42da6c32-7739-4952-8e57-ae14f3010a1c/92613912655.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_off0000b9c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9C7 5388 bytes
SHA-256: 351d9d2055347ea9573ea58235f93e2896dfec95c97f35ec02a2960b8c8f5b72
font_01_sfnt_off0000cc0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC0F 10100 bytes
SHA-256: 837554b9a3c708cdb32fe953ec18c205a7affc2944db59a5a16f29350e010d2a

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