Malicious PDF — malware analysis report

Static analysis result for SHA-256 19f9b9038b98629f…

MALICIOUS

PDF

71.5 KB Created: 2021-03-20 10:04:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d253fc0ce96d3dff8e75075e47f35b33 SHA-1: 1f39d2ba4ec7f21c454876b6261d09e0414f5cf3 SHA-256: 19f9b9038b98629fedb867d69dc15a5aa60990be01fef27af5b68754b5f581f4
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://dafemum.ru/strik?utm_term=remstar+pro+c-flex+plus+cleaning PDF link annotation
    • http://nipizakevenuvis.scienceontheweb.net/36213219933.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421937/normal_5fed2a11a6783.pdfIn PDF document text
    • http://liwexun.mywebcommunity.org/zepezukizixipavunomikapa.pdfIn PDF document text
    • http://kerutugizuxig.mygamesonline.org/what_part_of_new_york_has_the_highest_crime_rate.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459654/normal_601368b09b60e.pdfIn PDF document text
    • http://ketenimolupev.sportsontheweb.net/vinutil.pdfIn PDF document text
    • http://tefitagesev.mypressonline.com/basulivozedumurobotuf.pdfIn PDF document text
    • http://vabapagamowese.22web.org/57490594025.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/winumigutam/autumn_leaves_trumpet_sheet_music.pdfIn PDF document text
    • http://rokopuma.epizy.com/proyecto_empresarial_plan_de_negocios_ejemplo_word.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/xavulexok.pdfIn PDF document text
    • http://lagufezoseni.rf.gd/cheats_for_gta_5_xbox_360.pdfIn PDF document text
    • http://ligoroxenafof.atwebpages.com/how_long_do_viking_ovens_last.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/acknowledgement_for_industrial_training_project_report.pdfIn PDF document text
    • http://lufasojaweg.epizy.com/wediluloxevirav.pdfIn PDF document text
    • https://s3.amazonaws.com/kavugusepe/what_are_the_disadvantages_of_new_technology_nowadays.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxawetawupo/how_to_start_investing_in_real_estate_canada.pdfIn PDF document text
    • http://tagapibit.epizy.com/convict_conditioning_2_trifecta.pdfIn PDF document text
    • http://girupesoja.rf.gd/hitman_bodyguard_tamil_dubbed_full_movie.pdfIn PDF document text
    • http://pivimufe.atwebpages.com/lefexo.pdfIn PDF document text
    • http://pagiburisodu.epizy.com/liwenopusavoge.pdfIn PDF document text
    • http://fasujenijasezos.rf.gd/csv_to_google_sheets_python.pdfIn PDF document text
    • http://zepurudevivo.rf.gd/new_bike_games_for_pc.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_off0000d9d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D4 5440 bytes
SHA-256: 65777964aa3caac84e9483bad1d2ddb11f85da93ae124b69f2e4edcf918f0124
font_01_sfnt_off0000ec52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC52 10548 bytes
SHA-256: 3baa2289a032fd5317d432e9977aa8bedac3746da0545966ffb1f0bd0165fe1b

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