Malicious PDF — malware analysis report

Static analysis result for SHA-256 243474a80371b78a…

MALICIOUS

PDF

78.2 KB Created: 2021-04-26 08:57:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 66dc7d389f5596bd9afa8f9267c07866 SHA-1: 19fd4fd47efee0b7d1b986370070f1d46922af09 SHA-256: 243474a80371b78a246237c2888e2010e1093f32678daf42057c9e82fcf57a5d
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-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://maypoin.ru/strik?utm_term=club+car+precedent+body PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387938/normal_6024cea50ffd4.pdfIn PDF document text
    • https://cdn.sqhk.co/pevelefotuve/I6RKii4/59878600668.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379601/normal_5ff47550085cc.pdfIn PDF document text
    • https://cdn.sqhk.co/mugukawi/gdngYif/limbo_demo_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489407/normal_60564d06f391e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470226/normal_6036f5b3c0372.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488092/normal_5fceb13d7485e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384320/normal_6009f59f1fda1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495839/normal_600d9a0ad4db5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454977/normal_606876d2468c4.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/gofilafixu/77754396734.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8214829-686a-44bd-ae7f-873f547108e3/chicago_manual_of_style_citation_generator_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4f87449-c32e-42fa-8176-49c09f3b1fe5/lujizatijatixeg.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/783e6424-8ee4-4c50-8287-42be9599d095/sesevovobakivelosaj.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/96829893898.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/factory_reset_android_mxpro_tv_box.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/22931802759.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/prodigy_movie_2019_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/zememibusatabalezer.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/model_3_price_drop_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/juegos_del_hambre_3_pelicula_completa_en_espaol_latino.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6d6005d-8280-4af9-97dd-33c1b43799f4/rifts_world_book_10.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6B6 5036 bytes
SHA-256: cfb8e35d9c4b879208481b58dfd71d7380fef6cf555bef8059068b5e03e7916b
font_01_sfnt_off000107de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107DE 10520 bytes
SHA-256: 71af9ed47acdedbbf83b3e2fd0159415c2920ba778978d63a046b6fa7f7ff977

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