Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee0e3e12e4bfab3e…

MALICIOUS

PDF

72.8 KB Created: 2021-03-28 16:32:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b10bb02da533ce263ba51fc8d0e00081 SHA-1: ad24dcdf643ca58a2aa394bd899650cdd2d08eec SHA-256: ee0e3e12e4bfab3ebc6c26743b8e99692d5b10ed2bebfed70fa551c53ed6a705
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that redirects to a malicious domain, likely as part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to exploit vulnerabilities or redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://dafemum.ru/123?utm_term=slopes+of+parallel+and+perpendicular+lines+answers PDF link annotation
    • https://jamiwimavebu.weebly.com/uploads/1/3/1/4/131453695/bilogisabo.pdfIn PDF document text
    • https://vemetufubejukat.weebly.com/uploads/1/3/4/3/134367776/buralezom.pdfIn PDF document text
    • http://ziviludemedo.iblogger.org/black_and_red_wallpaper_for_mobile.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393901/normal_6013073a70208.pdfIn PDF document text
    • https://wabobileminila.weebly.com/uploads/1/3/5/4/135400898/1094281.pdfIn PDF document text
    • https://rimofemosi.weebly.com/uploads/1/3/4/3/134351632/zowinutig.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485698/normal_6057c8510c0f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470968/normal_601bb1c351630.pdfIn PDF document text
    • https://gipulafu.weebly.com/uploads/1/3/4/4/134442702/ccf05cf378b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476142/normal_600b3e5768054.pdfIn PDF document text
    • https://damitonamusu.weebly.com/uploads/1/3/4/3/134306925/8982630.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373788/normal_5fc5d8a97d63b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xirixepo/majogifilezebufe.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/cartoon_network_soccer_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/nizumemidokunuvagu.pdfIn PDF document text
    • http://vozuxekeve.rf.gd/archeage_4._5_blade_dancer_guide.pdfIn PDF document text
    • http://nebopepebog.rf.gd/digolokodanonavomotiro.pdfIn PDF document text
    • http://jupasugego.rf.gd/notalamewukozavuw.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/texademodefonofom.pdfIn PDF document text
    • http://nufewaruxemo.epizy.com/are_all_bacillus_spore_formers.pdfIn PDF document text
    • http://bagemok.epizy.com/bixobavoxutesefari.pdfIn PDF document text
    • http://ligezukaruxadon.epizy.com/bargello_quilt_patterns.pdfIn PDF document text
    • https://s3.amazonaws.com/zetubakuz/juwijesebuvolado.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_off0000dd25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD25 5344 bytes
SHA-256: 9d4b773dfd2bcfbf28521e63bed8b8909864ad1354fd38a47b87e343a370c1f4
font_01_sfnt_off0000ef70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF70 11224 bytes
SHA-256: b35cea1463797809748c8badf50fa2ce476e7618e8498483f09d4075644e734c

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