Malicious PDF — malware analysis report

Static analysis result for SHA-256 08973557d63805f6…

MALICIOUS

PDF

79.3 KB Created: 2021-03-10 06:47:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 841deb0af73a9f97f9e3db0ff75f016e SHA-1: e91b97e72f9b7320839e2ef868c7baabcb151277 SHA-256: 08973557d63805f66eeb4b0b51b757c52e8b1ed5dbceab51e5ee2c92ee99af31
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document flagged as malicious by ClamAV and an ML classifier. It contains a high-risk heuristic indicating an image lure linking to an SEO redirector, specifically 'https://jacksth.ru/strik?utm_term=is+1893+earthquake+code'. This suggests a phishing or malware distribution attempt disguised as a free download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jacksth.ru/strik?utm_term=is+1893+earthquake+code PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452621/normal_5ffa04e13675c.pdfIn PDF document text
    • https://wezuzasiteva.weebly.com/uploads/1/3/1/3/131397996/bunufokemon-sofid-jifelavesu-jumisusinifina.pdfIn PDF document text
    • https://xopugexufejan.weebly.com/uploads/1/3/4/7/134709921/ccd82ff297d656.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/jjghYje/6870911000.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453553/normal_600dc06ae1774.pdfIn PDF document text
    • http://nuxuzuruguli.mypressonline.com/canon_powershot_a720_is.pdfIn PDF document text
    • https://cdn.sqhk.co/nobutowug/Ggejfig/global_strategy_definition_in_management.pdfIn PDF document text
    • http://lofajemami.sportsontheweb.net/norcold_rv_refrigerator_problems_solutions.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420602/normal_5fdddafbc207c.pdfIn PDF document text
    • http://napodosawukezob.getenjoyment.net/favove.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484156/normal_5fe419111f883.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494440/normal_5fddf170507e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388813/normal_6005c92d1722c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428061/normal_600fa10fd0d9d.pdfIn PDF document text
    • https://cdn.sqhk.co/kafekogi/XihYjc1/nexekuzumisodabifimujol.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369190/normal_600523cbd83d3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tudixuzaw.onlinewebshop.net/96704769115.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04b859df-7ec1-4285-92f8-7f2e63495b09/14058811494.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acf19f09-e7f7-487c-90e8-e676990f8d55/superman_and_me_sherman_alexie_audio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97c9c284-b869-4f4d-a32d-38dda257757e/allworx_phone_manual_9224.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c079bbf-1c3d-46b1-8e34-0bcf122b3f1f/wapojib.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_off0000f94c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF94C 5688 bytes
SHA-256: 84a555fb52e2b1636a289fe01fca0fb5ce4e87566e07a26236547306018cd50a
font_01_sfnt_off00010c9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C9D 10460 bytes
SHA-256: 69d6826a281cee2f172228a23e46ce1cd5817b4913f9e78330d75cc6c2d8a57e

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