Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a92edd6fcba35a5…

MALICIOUS

PDF

113.0 KB Created: 2021-04-03 08:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 25fe71155e54b4b07d26343a28ffb12f SHA-1: 835eb25836020887d55750b144b40250945a6aae SHA-256: 7a92edd6fcba35a53184f097a9155ffce5c2342631900a0a2009dac1bda8b8c4
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://kuzutuzo.ru/strik?utm_term=brandon+marshall+boxing+debut PDF link annotation
    • http://poruzur.iblogger.org/qradar_dsm_guide_7._3.pdfIn PDF document text
    • http://dekopubetalukaz.22web.org/likojefetuxijox.pdfIn PDF document text
    • http://tumexade.22web.org/super_king_flannelette_sheets_nz.pdfIn PDF document text
    • http://kerufeki.22web.org/ruxipapirebozopawugalonu.pdfIn PDF document text
    • http://fadewujetenuve.mywebcommunity.org/metal_forming_analysis_wagoner.pdfIn PDF document text
    • http://wisatemubudu.medianewsonline.com/tidekasafuvuwumemikeji.pdfIn PDF document text
    • http://vadosaj.getenjoyment.net/les_collectivits_locales_au_maroc.pdfIn PDF document text
    • http://xonitaj.mywebcommunity.org/theoretical_and_empirical_literature_review.pdfIn PDF document text
    • http://dazuwovu.22web.org/61965477373.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/67ad2ed2-fa24-493d-8191-b3a7d2e47e81/50040795646.pdfIn PDF document text
    • http://japinoxizidunub.myartsonline.com/herbs_and_spices_quiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6aefecb-ab92-4aad-851e-2a6bfa16dedd/96367411798.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/96466456673.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/ludorup.pdfIn PDF document text
    • http://kigupebuwa.rf.gd/nezodutazavan.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/fibromyalgia_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/financial_report_analysis_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/sony_receiver_str-dh720hp.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/novivilolavisusuronuro.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/bring_it_on_worldwide_showdown_parents_guide.pdfIn PDF document text
    • http://xoluwemulejunow.epizy.com/xizadileroleva.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/29075712461.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_off00017c60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17C60 5496 bytes
SHA-256: da8886dafcb2dd11398340b28b8a380f5bcc9693c8b985ce08f5b29cf1874ee7
font_01_sfnt_off00018ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18EE8 11628 bytes
SHA-256: 7bfe69ba1432528b2e77f1ce0b2280d68db14558e4766aa31a552e301f4c48e4

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