Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea472d74665efcc5…

MALICIOUS

PDF

72.2 KB Created: 2021-03-22 18:34:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6cc40e99eb6e8d22627b5cf783d7f530 SHA-1: 90f4c35a1fad5ef6c820c7ef9943549e153819e5 SHA-256: ea472d74665efcc5013812e4d9fe564ee4df0b6f8f4052f23b477fd975f3030c
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 0.9995

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://crophysi.ru/strik?utm_term=zojirushi+water+boiler+parts PDF link annotation
    • http://select-get.top/buwimigenevuvaxigopuo9rqt.pdfIn PDF document text
    • http://ottics.ru/71091844678llcgi.pdfIn PDF document text
    • http://znohist.site/fuzaxarifujovikufojew2ni.pdfIn PDF document text
    • http://dikagowoxi.sportsontheweb.net/fimuponinegezidizaro.pdfIn PDF document text
    • http://podarokinsta24.online/botany_lab_manual_higher_secondarydwkju.pdfIn PDF document text
    • http://nunopasatipimav.medianewsonline.com/que_se_necesita_para_ser_un_lider_positivo.pdfIn PDF document text
    • http://nazhivy.net/rijipiwofefizavemovozo0d5x9.pdfIn PDF document text
    • http://nariwunuzaw.scienceontheweb.net/mgma_physician_income.pdfIn PDF document text
    • http://tujukesabegakom.mygamesonline.org/gaspard_de_la_nuit_ravel.pdfIn PDF document text
    • http://bachanalytics.com/the_rider_tarot_deck_buy_onlineomrug.pdfIn PDF document text
    • http://dmgameplan.com/abecedario_para_colorear5oiys.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/fatikonavori/5676403232.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/bruchrechnen_aufgaben_6._klasse.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/panudoxiweguwinadodu.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/eastenders_pbs_tv_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ad27c83-17ad-4621-b850-7c758bbca98b/48631892828.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/guide_to_fill_express_entry_profile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c62a2cb-4a47-4215-ab8b-102a14f7a0db/dozidirifalelanowalu.pdfIn PDF document text
    • https://s3.amazonaws.com/makixibawumebol/75312974111.pdfIn PDF document text
    • https://s3.amazonaws.com/xotomisen/ejercicios_de_ecuaciones_de_primer_grado_con_una_incognita_para_resolver.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/vifutijebaxegevetevo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3df4a922-ee67-481b-a025-bf64c9c3b099/28643055964.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_off0000dbb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBB9 5172 bytes
SHA-256: 259e287fcf0e1961b717c2a5e3d4622e0aa8222f042772343c89c359c58803c2
font_01_sfnt_off0000ed5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED5A 11120 bytes
SHA-256: 5430ae65a3f554484dfce6c81061506b06831274bf270d1098c8f0cf64eb209e

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