Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6c09a9cdfcef62b…

MALICIOUS

PDF

70.9 KB Created: 2021-03-18 06:48:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5a8f9fba2b38a4c8b732902388e7a552 SHA-1: 258198c85b0a0f62b0043cde271b39709f464912 SHA-256: e6c09a9cdfcef62b4ec4d36ec8b33d90676e5a5f8e73650fe34d883ae21a919e
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique often used in link farms to manipulate search engine results or redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as phishing and trojan activity. The embedded URLs suggest an attempt to direct users to potentially harmful content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://resalured.ru/strik?utm_term=engineering+drawing+standards+manual+nasa PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4461766/normal_5fef58c2ac5b4.pdfIn PDF document text
    • http://dororuminaxa.mywebcommunity.org/45834194638.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382779/normal_600191325dad3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452381/normal_5fcb369032bd8.pdfIn PDF document text
    • http://vadosaj.getenjoyment.net/how_much_hp_does_a_lamborghini_gallardo_have.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424985/normal_604347925a189.pdfIn PDF document text
    • http://xufuxenu.mypressonline.com/how_to_design_a_website_using_html_and_css_with_example.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380525/normal_5fd6ee739b359.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496816/normal_5feb9120f10b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478398/normal_6049c85a07eaf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370533/normal_5fcad83c7cd3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459481/normal_6052a5e9416e9.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/df9ed846-d973-4e59-a04c-0596f71b36a0/vusiridurifanezetoxes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a42e897a-00e5-43a9-97f0-28371ce2f5d3/how_to_reset_lowrance_hds_12_gen_3.pdfIn PDF document text
    • https://2225f16e-b6a0-48e2-a067-d7e802b71dd4.filesusr.com/ugd/a7ada4_4c765e8f4e4f4fc2960a0ea3fa550975.pdf?index=trueIn PDF document text
    • https://b20aee1f-b1b7-4e4e-be5e-d884e4ece670.filesusr.com/ugd/10e3af_5c06514594d64bb98b7511748f720d41.pdf?index=trueIn PDF document text
    • https://de99c131-68bf-4271-bcef-cda292486844.filesusr.com/ugd/f5892c_9fe5b29313e1414ead4f9b7781d26268.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c25715cb-5e13-4c2c-8e23-9dfb39992d96/how_much_does_a_sandwich_bag_weigh.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/599dffc8-ce6f-4e95-857a-13281bf42594/what_are_the_three_elements_of_poetry.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9da10b38-f70b-4cf6-84be-de9b606f13ae/xiwadawugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20bc0aff-d94e-4327-bcfe-a3377c2ee811/what_does_the_bible_say_about_virtual_reality.pdfIn PDF document text
    • https://f89b8795-a90f-4359-81e0-6309601a98d9.filesusr.com/ugd/8e7730_92cd1fda59f34cdf8b10e1dc41b91bbe.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c68d4267-e4ba-4f0f-86a2-64f086bd44db/68817081470.pdfIn PDF document text
    • https://db38eef3-7d65-43a4-badd-ba39ed7d9417.filesusr.com/ugd/bd2483_b4707e853f714681a877470f794263c2.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/7df532e1-5191-4ec7-81fa-b798ed6c1aee/kisoxoxagenufezer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9fd7082-32d7-47b8-ad55-fd263934c2fd/what_age_uppababy_rumble_seat.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA02 5196 bytes
SHA-256: 2d748082275563aa0a5bddf663a7191320b2c51b485cb96e51f92187431b9949
font_01_sfnt_off0000ebac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAC 9784 bytes
SHA-256: 459d4f77154b4bef5ee9f9d24735ec491fb61eea8aad1cea1034aaccc0068d40