Malicious PDF — malware analysis report

Static analysis result for SHA-256 04868eec07095dda…

MALICIOUS

PDF

73.4 KB Created: 2020-12-15 12:07:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: edabcf7d5c457a9607d65420072685a4 SHA-1: eba3293ae13b31e93711a3ecfeb5f130c7ff8f5d SHA-256: 04868eec07095dda38b63372e70c14fcda8a36dbb8b3fd4a672e61763d92172e
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • 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.
  • 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://traffking.ru/123?utm_term=battlefront+2+maps PDF link annotation
    • https://lixaworone.weebly.com/uploads/1/3/1/8/131871871/sisudivovota.pdfIn PDF document text
    • https://kuzewejutoba.weebly.com/uploads/1/3/4/3/134398832/b4e071a5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366050/normal_5f8a1605c22d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402000/normal_5fd628340b810.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/2183413f-4463-4a81-9d83-22b4f06c07fc/19533895056.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57b7268612547ed7cf6db/t/5fd7263d9264095525ed0f04/1607935549954/employment_application_form_template_excel.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f66f116eb00e3c4c456d/t/5fc11c56f3de5e49b58be0af/1606491223826/sawofelegolojizobesasox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7ad3950-655c-40de-b1c5-7f7b8747203e/environmentalism_a_global_history.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6beaecb936d6a06a4c2a9/t/5fd099566cbf29106b004c25/1607506264954/jijeladu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcdf476f169c3718384eb6c/t/5fd74965102ca46975ffdb6e/1607944553587/docusign_for_salesforce_lightning_admin_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/41644541167.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8bcb013-f883-4aa2-aeb6-1830cb09eeb5/weed_eater_owners_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0fbb61c8c741314323605/t/5fc13ab8e6d49a06bbbed089/1606499000179/katee_life_torrent.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ae8e03b-1d09-4acc-bd75-94564d0c676e/nivaxavakevugametaguguje.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/garabatevavad.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ed012e537a05ef0936a0/t/5fc1349518e72e5fdb030470/1606497432229/fuxop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c514beee-8a67-4c02-a873-c100b389b10c/kedatejenebe.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_off0000e2a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A7 5228 bytes
SHA-256: d2e4846b60fd3431ceba68488824e4839de210b5ee3946ec0c2252278c88ba83
font_01_sfnt_off0000f45b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF45B 10756 bytes
SHA-256: 2873045c125182b1d0af801be457157b0774997165c09303ae02477517328177

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