Malicious PDF — malware analysis report

Static analysis result for SHA-256 7997697063b44213…

MALICIOUS

PDF

163.7 KB Created: 2021-03-01 19:46:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6564e23ec3bdf757d65d197872614730 SHA-1: 82a51dfa83f7f740bc85f573d07d92096a7877cf SHA-256: 7997697063b44213a2683e8a89d8e7408b6a1971a7d5e8f02e93322e978e194b
96 Risk Score

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-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://kuzutuzo.ru/strik?utm_term=hamlet+by+william+shakespeare+movie+online PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4421473/normal_5ff36768e9b5f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387715/normal_5fd0650727b8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394060/normal_601594b5cda36.pdfIn PDF document text
    • http://xurixekan.22web.org/barrons_sat_subject_test_chemistry_with_online_tests.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puzuzebud.epizy.com/la_celestina_analisis_literario_rincon_del_vago.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/51425757948.pdfIn PDF document text
    • http://reditab.epizy.com/lewokaxijidu.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/20726483187.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/35892563655.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/96479393488.pdfIn PDF document text
    • http://bowukedogatowo.epizy.com/bexokulasozi.pdfIn PDF document text
    • https://s3.amazonaws.com/firudegix/virugiradovizor.pdfIn PDF document text
    • http://xubikonenagoli.epizy.com/descargar_la_biblia_reina_valera_1960_gratis_para_celular_blackberry.pdfIn PDF document text
    • http://fedukiz.epizy.com/quarterly_taxes_form_941.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/79510966074.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/are_wendys_fries_vegan.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/fuxad.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/98882021085.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_off0002471f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2471F 5480 bytes
SHA-256: 01ebbc8df954a858a84e8d987c97629688500af844c179f85667df72e0ee927c
font_01_sfnt_off000259a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x259A1 11416 bytes
SHA-256: c7e2157ff0257431fe603fe5e1ffac7bf0aaba162573760300863cb4e82be316