Malicious PDF — malware analysis report

Static analysis result for SHA-256 f878f72df594b1eb…

MALICIOUS

PDF

68.9 KB Created: 2020-12-22 02:25:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 28899a47a75acd54e8cf80de28ef469c SHA-1: d85f1a5bc3fcbf8cf26b9290b9a4e6567b0dc873 SHA-256: f878f72df594b1eb372a463a3523428973aafc36b6f9e4b7921a57c3293f78a8
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file contains a link that redirects to a known malicious domain, likely as part of a phishing or scam campaign. The heuristic firings indicate the PDF is designed to lure users via an image or text related to "Queen greatest hits 2 album cover" and then redirect them to the malicious URL. While no scripts were explicitly extracted, the nature of the redirector and the ML classification suggest malicious intent.

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
  • 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.
  • 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://traffking.ru/wb?keyword=queen%20greatest%20hits%202%20album%20cover In PDF document text
    • https://doluxofaxomivu.weebly.com/uploads/1/3/4/7/134715621/7579939.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489981/normal_5fd64ff0e0e14.pdfIn PDF document text
    • https://wavafebezed.weebly.com/uploads/1/3/4/5/134527209/4168824a4d0.pdfIn PDF document text
    • https://wazexusevawixi.weebly.com/uploads/1/3/0/7/130776334/5345343.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://static1.squarespace.com/static/5fcf7a2bdeaf7179bbd231ba/t/5fd6117ad654060362be49b1/1607864700187/70423411367.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/gorutoresegiwuxikegip.pdfIn PDF document text
    • https://s3.amazonaws.com/pezufatexo/logosiguvutari.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc119b992c50b1a1e78b725/t/5fc766b2b7521d608a458398/1606903474260/32431528301.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/friendship_day_song_whatsapp_status.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc65a04ab79f442f24ead5b/t/5fd220cfac13f65f661c30c0/1607606483843/18457758199.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80c1979b-8125-4bb8-8713-aca68f86bab2/piwumewevifanefifilulokif.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_off0000c3e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3E8 5488 bytes
SHA-256: 7b2b0e617527bae761b866bbe96e847f6bfddc6b2ea3bc6791d09a29b8d1f876
font_01_sfnt_off0000d671.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD671 10168 bytes
SHA-256: ecce72d764c9e7251f62e628c3265c690b8a24dd681d3708bae760fe7cc3047c
font_02_sfnt_off0000f90f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF90F 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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