Malicious PDF — malware analysis report

Static analysis result for SHA-256 05e652f74e08f4ec…

MALICIOUS

PDF

135.5 KB Created: 2021-03-10 23:45:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 6daf1dc7733a5d4d6d633a673a43a8e6 SHA-1: 67aa560a5043354cd1069882e7b89ec5627e4881 SHA-256: 05e652f74e08f4ec6a671856aa695b4ca92f01e0d4c92d7bc903ad0e02ff6365
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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/strik?utm_term=what+rappers+are+five+percenters PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4473926/normal_5ff4b341b5509.pdfIn PDF document text
    • http://how2clever.com/sakura_blade_for_sale39etp.pdfIn PDF document text
    • http://vilopeg.xyz/flowers_for_algernon_full_play_scriptttfja.pdfIn PDF document text
    • http://zoneeuro.pro/management_information_systems_salary_in_uae1aea2.pdfIn PDF document text
    • http://sutiboju.sportsontheweb.net/61198847475.pdfIn PDF document text
    • http://valuburikodajad.medianewsonline.com/the_great_depression_causes_and_solutions_worksheet_answers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488556/normal_6005fdaeaa225.pdfIn PDF document text
    • http://nibewubixela.getenjoyment.net/design_of_transmission_systems_book.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458124/normal_6039cbcb8ed50.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393790/normal_5ff42c6b449fe.pdfIn PDF document text
    • http://allostar.buzz/8374011171m45rm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500201/normal_5fe51f9a527aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447434/normal_60480bc774e83.pdfIn PDF document text
    • http://zdorovie-vashe-vse.xyz/alimentos_y_bebidas_conalep47ndl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425784/normal_601753558ff0c.pdfIn PDF document text
    • http://maddot.space/the_secret_life_of_the_american_teenager_cast_johnozeaf.pdfIn PDF document text
    • http://fexevewuli.mypressonline.com/compound_interest_questions_in_hindi.pdfIn PDF document text
    • http://memaberenux.scienceontheweb.net/love_story_song_taylor_swift_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0001d7cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1D7CC 31612 bytes
SHA-256: 0774ec36e4727fc0758193de5d815c0d410a64364e1557d04a3bd95524fe8f63
font_00_sfnt_off00019f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19F3A 5144 bytes
SHA-256: 79edd2e0bf5e3b5616ae1fdbd149ef1738dbb1aea98aaeda03a08677852deac7
font_01_sfnt_off0001b0cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B0CC 11452 bytes
SHA-256: c7928a3828bced17ce752f835687a7d4b910c9ffd6978dd24fc693d511f3c00d

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