Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d5f97c79f1520a9…

MALICIOUS

PDF

79.9 KB Created: 2021-04-25 19:47:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 161c4ba4d0e2b662867ce179a3e4cffe SHA-1: ea6aadeff738d9a81eb9231bceffa66cfb9caf54 SHA-256: 3d5f97c79f1520a979de97878f1ace32ca1489df5b2d75915febf0a7982a553e
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://zajinet.ru/strik?utm_term=resumen+el+se%25C3%25B1or+de+las+moscas+pdf PDF link annotation
    • http://nigoguno.scienceontheweb.net/cadena_alimenticia_definicion.pdfIn PDF document text
    • http://fodosokidorakig.22web.org/present_simple_active_passive_exercises.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365606/normal_6005b9c7a95c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422640/normal_601f99174926f.pdfIn PDF document text
    • http://ooovseanalizi.ru/kaplan_asvab_online_loginb6djl.pdfIn PDF document text
    • http://piludid.22web.org/coordinate_grid_worksheets.pdfIn PDF document text
    • http://woziwowariv.sportsontheweb.net/karuvaratuwuborogeviz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388183/normal_60254ebad8abd.pdfIn PDF document text
    • http://pewekelexu.mygamesonline.org/data_analysis_for_the_behavioral_sciences_using_spss.pdfIn PDF document text
    • http://wuxixezigitezir.mygamesonline.org/vashikaran_mantra_for_love_in_telugu.pdfIn PDF document text
    • http://xikisavi.scienceontheweb.net/cetoacidosis_diabetica_en_adultos_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387808/normal_5fe6c28dc3f23.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405904/normal_605ff91c22582.pdfIn PDF document text
    • http://trafikcezaodebayisi.com/61488817664f6fl2.pdfIn PDF document text
    • http://radulukolataleb.iblogger.org/98947899487.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/zarevizebi/1268335045.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/how_to_send_unofficial_gre_scores.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/canon_drivers_printer.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/jetemuxa.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/goblin_5e_character_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/perurulexi/46833193346.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/carson_dellosa_math_answers_grade_5.pdfIn PDF document text
    • http://repoxiwaxatasa.epizy.com/tenagibukobijaluruxaju.pdfIn PDF document text
    • http://buluzapatevade.epizy.com/mumavapa.pdfIn PDF document text
    • https://s3.amazonaws.com/radubozufiwo/guvapatewiponomidak.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/sibabusumiwetetuzifuw.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
stream_003_off00010b27.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10B27 11212 bytes
SHA-256: e1b10401c0bd41dea85d8168d83c652ce8e53b8dd1bf3f36874b71207c58e726
font_00_sfnt_off0000f8ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8BA 5520 bytes
SHA-256: 70a99965721fdd54efd41b0b1400ed2f1baa1324b3a59373022e3bea7d640516

Open this report in the interactive analyzer, or submit your own file for analysis.