Malicious PDF — malware analysis report

Static analysis result for SHA-256 4abaa2e9e8d0e81d…

MALICIOUS

PDF

82.3 KB Created: 2021-03-09 05:12:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4b19107f8a3d8c8ed12650a5093bee17 SHA-1: 5a5e6f65085b7c92f3536196c415dc411fea5b1f SHA-256: 4abaa2e9e8d0e81d82ea794a3b298ec09ac51d906e9194ef3550ffd58e2c8b86
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://nipisod.ru/123?utm_term=french+grammar+quiz+questions+and+answers PDF link annotation
    • http://gejudoxe.mypressonline.com/mejor_app_de_finanzas_personales_iphone.pdfIn PDF document text
    • http://manoligixave.66ghz.com/31836964405.pdfIn PDF document text
    • http://mobevusujezuno.22web.org/crsu_bed_1st_year_date_sheet_2019.pdfIn PDF document text
    • http://wibevuzu.iblogger.org/43034967911.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://zubeleboju.epizy.com/85309822282.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/vixatatedojorozag.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/android_sqlite_insert_nullcolumnhack.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/equifax_canada_free_credit_report.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/3480051968.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/python_class_documentation_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56f804b0-b06f-4fbd-8868-1e442ac43fc7/tibidofi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b60b4b1-073f-4998-8b56-b7cd22d3ca69/to_kill_a_mockingbird_by_harper_lee_chapter_1_summary.pdfIn PDF document text
    • http://varirojemixu.myartsonline.com/the_better_angels_of_our_nature_lincoln.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5411aeb8-eeea-4d35-a2c9-c28b59e0076e/17704692111.pdfIn PDF document text
    • http://fufudaloxola.onlinewebshop.net/spelling_rules_with_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/manejo_de_cetoacidosis_diabetica_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/manualidades_con_material_de_reciclaje_faciles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7db86b2e-c05e-4339-885e-160a4b938dd0/do_what_the_mandalorian_says_or_die.pdfIn PDF document text
    • http://gifonuva.epizy.com/leila_prayaag_akbar.pdfIn PDF document text
    • http://vimixof.onlinewebshop.net/is_nigeria_a_free_country.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/diuretic_drugs.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/adobe_acrobat_reader_win_10.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF866 5428 bytes
SHA-256: f71b5e8a9066dc7e06be57f889329974930d9196c67d37b21d802db2a073113c
font_01_sfnt_off00010ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AB6 10184 bytes
SHA-256: ae8d447f8d32dc886f14d3b705570ffa37710e02e88e30b5c65982b745b316dd
font_02_sfnt_off00012da3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DA3 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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