Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca19cf17448fabcd…

MALICIOUS

PDF

75.9 KB Created: 2021-03-23 23:39:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 5d161f041a4594c0bd81b2a2e8861674 SHA-1: 5936d53142b0be241d3761b6d754e9396a7a7c3a SHA-256: ca19cf17448fabcdd9fc3a1a936340904af02e955f56af0b1e8472e60be2bb80
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 0.9998

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://golowaki.ru/award?keyword=bobinados+de+motores+electricos+esquemas+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4420238/normal_5fed332146be9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449771/normal_5ff7578d680a6.pdfIn PDF document text
    • http://artistichomesolutions.com/19378203655j0sln.pdfIn PDF document text
    • http://lady-bug.club/xexuruvarougc5.pdfIn PDF document text
    • http://emirofficialzm.com/210902600560ol4m.pdfIn PDF document text
    • http://kyukty68.xyz/rebel_inc_guide_southern_desert9wclv.pdfIn PDF document text
    • http://begemotiks.space/dark_souls_3_cinders_mod_wiki14w7z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373261/normal_5fee1ef8d14e6.pdfIn PDF document text
    • http://milanbeachs.space/mowobuxulob8cg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415309/normal_601094085cc9c.pdfIn PDF document text
    • http://meetdouche.xyz/rosimulupipikako9pcu1.pdfIn PDF document text
    • http://butuvaguji.iblogger.org/autumn_leaves_partitura_violo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376606/normal_603107cf78db6.pdfIn PDF document text
    • http://zdorovienashevse.xyz/939940049287asd5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497658/normal_5fcc008f80a52.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474722/normal_5ff1478e115e7.pdfIn PDF document text
    • http://persequenteamsohbet.com/principios_de_la_economia_social_solidariat851l.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mukadepokexow.epizy.com/gijabededo.pdfIn PDF document text
    • http://zanatibagewo.rf.gd/gosupofiguvifubobe.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_off0000e613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE613 5616 bytes
SHA-256: a0a81829b403dc1915189531961eaa51ca1bcb51ea964432c597711be26f9603
font_01_sfnt_off0000f90c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF90C 12304 bytes
SHA-256: 70130d7da4d9e18746bb7f22d6b3f0b448fa282cdd8b35a9ba5dab89bfb326fc

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