Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc2e2a259e6729a…

MALICIOUS

PDF

70.3 KB Created: 2021-02-21 14:52:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 47a549c0b6bad19636eff3369eebedf3 SHA-1: 3539834e4817a9e90531ff108b2b534ecd1ede71 SHA-256: 1dc2e2a259e6729a89702436e29f207314535ec8ad877c3bd45fabf9b221b551
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jacksth.ru/wix?keyword=expresate+online+textbook+spanish+1 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4486523/normal_5fe19be51585d.pdfIn PDF document text
    • http://triple-doska3.club/p-_touch_address_book_software7hi2b.pdfIn PDF document text
    • http://iceteas.space/928414603449y934.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369514/normal_60011e054fbb5.pdfIn PDF document text
    • http://udilische.club/851189350016wgbw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425504/normal_6027660bc99b8.pdfIn PDF document text
    • http://repair-kompov.ru/subtraction_word_problems_worksheet_grade_1moa7i.pdfIn PDF document text
    • http://vikunokanafigul.66ghz.com/piano_concerto_no._1_tchaikovsky_sheet_music.pdfIn PDF document text
    • http://flowerport.shop/518303850656j9fm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://novademovu.rf.gd/55550785148.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/what_is_the_salary_of_a_certified_internal_auditor.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/power_electronics_mcq_with_answers.pdfIn PDF document text
    • http://sewoxoxitif.rf.gd/14013138800.pdfIn PDF document text
    • http://fepaxediv.rf.gd/58385630123.pdfIn PDF document text
    • http://nuxewetim.rf.gd/shading_regions_inequalities_worksheet.pdfIn PDF document text
    • http://nujafosedoke.epizy.com/69624304358.pdfIn PDF document text
    • http://tikikenuf.epizy.com/averageif_function_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/niwotipugonuvoz/wallpaper_cute_puppies.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_off0000d7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BE 5188 bytes
SHA-256: 280419422f33f1d48f47b320cad22f5676c0712691d4df1c6e378d9fae7a9956
font_01_sfnt_off0000e95e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95E 10000 bytes
SHA-256: d516cb84e4202e61b7388291063a3963493f710df9ee26889ae3994b2a85d843