Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b6434b5a0c8b051…

MALICIOUS

PDF

68.2 KB Created: 2020-12-05 16:59:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e7e7c20ae17f7819170f205ca13cfe86 SHA-1: e0fc71ca3341c9020966e4186653e2a6fc348ecd SHA-256: 0b6434b5a0c8b0515f47daf3d5a71ff303f8af042216123a4e52755afd6b7a92
214 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a large number of embedded links, with at least one pointing to known malicious redirector infrastructure. This strongly suggests a phishing or scam campaign aimed at directing users to malicious websites. The ML classifier and ClamAV detection further support the malicious classification.

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.
  • 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.
  • 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://traffmen.ru/strik?utm_term=christ+church+community+development+corporation+hackensack+nj In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374373/normal_5f8a8deea0a06.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381762/normal_5faf495735c51.pdfIn PDF document text
    • https://losewilim.weebly.com/uploads/1/3/4/8/134854933/zabemelexosudosa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456119/normal_5fca9b0b81243.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413973/normal_5fcb49dacd21c.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/bb11a23b-b21d-43bd-8ac0-343c5bc229c2/vogola.pdfIn PDF document text
    • https://s3.amazonaws.com/gotenukevepunin/gakiluv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d75eb820-5c11-4798-a891-e721ef2e8ccc/extratorrent_torrent_site.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5c3e695-ba5e-49bd-b29a-c1860374590f/44513295311.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c62de283-058e-45e6-b3b2-1fd2b305bddd/furozezawimolo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46f3658d-69ad-4b04-bd27-4f44996343ce/dipasutumogeloxegirizu.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA1F 5520 bytes
SHA-256: e93518a26d89c5c789d7e029783ee47e4db5a4d80750a4846687110b2c466bfe
font_01_sfnt_off0000ccc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC0 9604 bytes
SHA-256: df61451747c5dfa0b15a68275f86bcf74e8483175166232546e54ce0710928e3
font_02_sfnt_off0000edc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC4 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501

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