Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb65cca887ebb871…

MALICIOUS

PDF

70.4 KB Created: 2021-03-28 02:42:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cfcd914c272e6b27ea42ac42eb0ae391 SHA-1: 5551da2c1c7a4e399a4b1dd99ae4e35de34419fb SHA-256: eb65cca887ebb87102b0d378612a429bb2ef1180a98eefefd2f903c9f855f39d
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 0.9992

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://maypoin.ru/strik?utm_term=kanawha+county+wv+school+calendar+2020 PDF link annotation
    • http://confirmationhelpcenter.com/vesovedofuvudezwissi.pdfIn PDF document text
    • http://irisca.online/how_to_learn_first_principles_thinking8unsz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486778/normal_6032d3dda9943.pdfIn PDF document text
    • http://promoocaoameericanas.com/como_baixar_do_passei_direto_no_pc5udd9.pdfIn PDF document text
    • http://ruszaimclub.ru/seguputujeninerurolunoxee3593.pdfIn PDF document text
    • http://muzhskoizhurnal.ru/635073470707ki3u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369648/normal_5fcdfbd01531e.pdfIn PDF document text
    • http://mapotilij.mygamesonline.org/17159059.pdfIn PDF document text
    • http://makamar.xyz/11312639333ve76b.pdfIn PDF document text
    • http://brumbum6.xyz/la_ciudad_de_las_bestias796ws.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476150/normal_5fd6fad70eb71.pdfIn PDF document text
    • http://fresh-ita.space/zokaterusaxusuv7a6lk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454547/normal_602f7dddb65f4.pdfIn PDF document text
    • http://katipef.medianewsonline.com/tedokelikife.pdfIn PDF document text
    • http://peskomment.ru/78490656915noh0i.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/fosalizuzu/robazivevek.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/time_value_of_money_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/sap_business_analyst_salary_in_us.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/19604831813.pdfIn PDF document text
    • https://s3.amazonaws.com/popilo/stp_ez_chill_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/2264780605.pdfIn PDF document text
    • http://madepadejatutof.onlinewebshop.net/epigenetica_conductual_enric_corbera.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/50368834541.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_off0000d213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD213 5524 bytes
SHA-256: 6e7a3cb3979415f26d57721d20964e89f41cb355a6b8477c8fc11819c02553b9
font_01_sfnt_off0000e4f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F6 10864 bytes
SHA-256: b9b3bad3937bc160ffb5f4717f555b1eed3130b98d402c55a41e7df7f9a8c4b9

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