Malicious PDF — malware analysis report

Static analysis result for SHA-256 04c720d9ab9ad4b8…

MALICIOUS

PDF

73.9 KB Created: 2020-11-12 17:59:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f1996efa7300b55284e014c9c6978843 SHA-1: 7ea7949781beba37425d2a3669a81ac205228386 SHA-256: 04c720d9ab9ad4b8b7cf3004be77ae8f327bbc1ce8fc3733052ec8257f9640e9
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link disguised as a lure for monitor specifications, which redirects to known malicious infrastructure. The primary attack vector appears to be a phishing attempt via a malicious attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://gettraff.ru/strik?utm_term=1440p+on+4k+monitor In PDF document text
    • https://korodaziso.weebly.com/uploads/1/3/0/7/130740443/wafuri.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391909/normal_5f991505e8ff0.pdfIn PDF document text
    • https://zabidikigez.weebly.com/uploads/1/3/4/5/134594795/4235841.pdfIn PDF document text
    • https://wajiresejepo.weebly.com/uploads/1/3/0/7/130774962/9036793.pdfIn PDF document text
    • https://s3.amazonaws.com/buponuwebi/jesus_teaching_on_prayer_in_matthew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374185/normal_5f9b969740264.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367268/normal_5f898f8af00df.pdfIn PDF document text
    • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/pumazalatopo_rovukowonufe_zozifawub_xiralixirepoz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366041/normal_5f88a8b180822.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384835/normal_5f8c9637158b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460266/normal_5fa56c0003121.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/b8420bbe-a6ca-486b-8f62-0197112a16a6/vumejed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbeef022-9c8f-44f0-b920-9dd7a0fa0ea1/tuvukasorozusone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc9ab916-2d20-40bd-8437-be9db321c245/jizijalipisu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3851bbcc-50bd-44b3-b408-786a8fab4d3b/45236205072.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e84602a0-2c76-45a6-a045-21fb792365c3/demufu.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 1

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_off0000e43c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE43C 4796 bytes
SHA-256: 4e2976ab7897b0515ed0db430cd052ff5dc63bcdbb0bdff21ca11f462a57257d
font_01_sfnt_off0000f486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF486 11416 bytes
SHA-256: 0cf9ca8442ace7cea0196be8ae74b421ac4e41447ed0169f71a88eef1162edca

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