Malicious PDF — malware analysis report

Static analysis result for SHA-256 033511c754564797…

MALICIOUS

PDF

86.7 KB Created: 2021-05-03 14:46:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 43029d37217e6360819b1cf126a3822d SHA-1: b1ab6e428f76adb9ae451945eef3ec517aa0edf3 SHA-256: 033511c754564797ca078206f2a17b171f07aa3db643d4f07713bb892244a2b0
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 0.9967

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://bologen.ru/strik?utm_term=is+the+shining+book+ok+for+a+13+year+old PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4445544/normal_5fd674d1a6f64.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460690/normal_5fcea67324a48.pdfIn PDF document text
    • http://sodahq.pro/ralph_waldo_emerson_self_reliance_purpose9tlwi.pdfIn PDF document text
    • http://tapovapusewirol.iblogger.org/expressions_and_equations_worksheets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470960/normal_5fdf36dc8f41c.pdfIn PDF document text
    • http://yourcy.com/fresnel_biprism_experiment_viva_questionstufm1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391326/normal_6056da3bd9286.pdfIn PDF document text
    • http://luwimifamofuper.iblogger.org/zizijonikuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388839/normal_5fdb8c30e2760.pdfIn PDF document text
    • http://trendmobile.ru/855274594494crgg.pdfIn PDF document text
    • http://kungfumalibu.com/17034060571dkxjk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bukuzagalu.rf.gd/73112395777.pdfIn PDF document text
    • http://dipejigiz.epizy.com/36219804875.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/99550899624.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/rakivezotokufuzemofer.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/altered_states_of_consciousness_book.pdfIn PDF document text
    • https://s3.amazonaws.com/girilifawuxi/biwawinirugizupumefevalub.pdfIn PDF document text
    • http://banitazivi.epizy.com/green_revolution_upsc.pdfIn PDF document text
    • http://jifadeve.rf.gd/8_ball_pool_rules_south_africa.pdfIn PDF document text
    • http://muxurolipuxe.rf.gd/87025314780.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/contractions_and_negatives_worksheets_6th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/o_calvinismo.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/mutemisowojolaj.pdfIn PDF document text
    • http://xovipofeguz.epizy.com/gain_guidelines_hyperkalaemia.pdfIn PDF document text
    • http://pixoralozod.epizy.com/black_and_decker_weed_eater_string_af-100.pdfIn PDF document text
    • http://mupisogedosido.epizy.com/95082317190.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/fokatinu.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_off00011040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11040 5628 bytes
SHA-256: fd190c7b74a26029c7f599210994cdbf1f58dac9292cf97ff34adc27534c5adb
font_01_sfnt_off00012372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12372 12492 bytes
SHA-256: a4f57754b56ed74dc2c6225edfe23261103eb94e1660ab833c852b47c84d868a

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