Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6cff3047d3bec8e…

MALICIOUS

PDF

74.9 KB Created: 2021-03-19 07:24:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 59585a7bef9beb908d2f613a0787714c SHA-1: b503e47a1397e9cd398791423724f55049c871a9 SHA-256: c6cff3047d3bec8e71021c2733f94b2ff85d0bcd051fca2d7da1893ea9473a64
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 0.9998

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://crophysi.ru/award?keyword=mummies+magic+and+medicine+in+ancient+egypt+pdf PDF link annotation
    • http://mibemuxagegija.mywebcommunity.org/vosefapubarokax.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404959/normal_5ffd1fe7e488d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450640/normal_604ad2ca11f9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444110/normal_60173902831d1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417530/normal_602b8a0418d2b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410954/normal_604ba9a4f28a4.pdfIn PDF document text
    • http://zemesod.getenjoyment.net/porozevafav.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lujuxug.epizy.com/breathable_waterproof_sheets_for_beds.pdfIn PDF document text
    • http://nuxibuzejapise.epizy.com/small_to_word_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/nonorabenulatasagu.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/keynote_bullet_journal_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/avery_weigh_tronix_zm303_calibration.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/mopagazetezomoxexelidiloz.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/adobe_captivate_8_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/la_familia_de_pascual_duarte_en_ingles.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_off0000e7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BE 5452 bytes
SHA-256: 20ef444c9f4844c1076b0c07863b8fbc3ad32f2f798335cd809ae7537ac77798
font_01_sfnt_off0000fa53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA53 10620 bytes
SHA-256: 734aa5a293a60898d6782e65ad3075ac379baed9653509189d3657f94af97387