Malicious PDF — malware analysis report

Static analysis result for SHA-256 36693b63f0ceac2f…

MALICIOUS

PDF

69.6 KB Created: 2021-04-03 06:17:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 58572c97664fe63c9efcdb92a4b81247 SHA-1: 9e1df3e7cc466db605b6c393e8cf5e1460cf7ef5 SHA-256: 36693b63f0ceac2fef17a09d52c2d2ba8dc2f67a812d320b24d9f039952b0a3b
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/strik?utm_term=biblia+de+jerusalen+letra+grande+costo PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418565/normal_6009d4f82812c.pdfIn PDF document text
    • http://zolijava.iblogger.org/blogspot_libros_juveniles.pdfIn PDF document text
    • http://lazokiwumemo.mygamesonline.org/agamenon_livro.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393485/normal_605017c6ac8fc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444884/normal_5ff43a1ec12f1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453553/normal_60374a4fe89a6.pdfIn PDF document text
    • http://lofomerevudawem.iblogger.org/pizutabog.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422147/normal_5ff0c3c3cc0b8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://makidibe.epizy.com/vipev.pdfIn PDF document text
    • http://lobuxujan.epizy.com/zetigateluzuxililuvabo.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/35768811706.pdfIn PDF document text
    • http://fenigubigona.epizy.com/wafezuzofufiwoxubi.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/denemolonoxokiminomuxal.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/75422772046.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/feliz_navidad_jose_feliciano_2020.pdfIn PDF document text
    • http://fonufusova.rf.gd/xawudukowivameruvum.pdfIn PDF document text
    • http://sozunonu.epizy.com/cafe_rouge_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/chess_software_for_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/chrome_32_bit_for_kali_linux.pdfIn PDF document text
    • http://rinivuwuvo.epizy.com/vonififikosuvozewusugaru.pdfIn PDF document text
    • http://rumudawe.epizy.com/vuvokubolonuw.pdfIn PDF document text
    • http://xutenujute.myartsonline.com/capitalismo_solidario_gratis.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_off0000cf65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF65 5372 bytes
SHA-256: db06e1635fa15618d58b68f1046dcedabe5ed1e9350887e864f984821d4e894b
font_01_sfnt_off0000e1b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B9 11424 bytes
SHA-256: 81cdbb403568b2b542ee2cef344ffd30ac2275afd4c0868b45bb4f76a2b763d1

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