Malicious PDF — malware analysis report

Static analysis result for SHA-256 470f0020c172207c…

MALICIOUS

PDF

66.3 KB Created: 2021-03-04 00:50:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: d579fd809eedae2f012e83fdb3f75d65 SHA-1: bda55c2e4db77892c56fdc67ec5ff68469f730a0 SHA-256: 470f0020c172207ccfc2632da320b1e26d6530d8dd1b3990c46489eb4fb21403
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. The document body, though partially corrupted, suggests a lure related to camera prices, which is consistent with the external URL.

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://xajibur.ru/strik?utm_term=harga+kamera+samsung+nx300+bekas PDF link annotation
    • http://avtoshkola-region26.ru/restas_primero_de_primariasyhvt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450889/normal_601afea155ebb.pdfIn PDF document text
    • http://pop-marketplace.ru/aliens_vs_predator_2_primal_huntoys92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385014/normal_5ffab900abcf0.pdfIn PDF document text
    • https://cdn.sqhk.co/libodinidep/b9ziciL/fosojiravomuvibewizibuxij.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465263/normal_5fcd107c66f58.pdfIn PDF document text
    • https://cdn.sqhk.co/rubutemoxe/ehgxjjN/zatubojeraron.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474736/normal_6036d1b971d2b.pdfIn PDF document text
    • https://cdn.sqhk.co/pagozixupezi/riggdvv/shooter_movie_online_watch.pdfIn PDF document text
    • https://jodegometokak.weebly.com/uploads/1/3/1/6/131606115/dowapivotufibupopop.pdfIn PDF document text
    • http://lnstagramsupportingcenter.com/cech_2501a_jailbreak_2018xj841.pdfIn PDF document text
    • https://nawivavunof.weebly.com/uploads/1/3/4/6/134669961/gurisoviderokoxowipo.pdfIn PDF document text
    • https://cdn.sqhk.co/zegareguw/igOeicR/download_fruit_blast_knife_master_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387826/normal_600a4f46f1ecd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459057/normal_600b1c9fd0e29.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/vuforewebub/travel_expense_report_excel_homework.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/spontaneous_bacterial_peritonitis_treatment.pdfIn PDF document text
    • https://s3.amazonaws.com/fowonaxul/98029439129.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/canvas_student_guide_groups.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_off0000c597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC597 5512 bytes
SHA-256: 84348c98a955b44d73521617a5a9a230c823b5b5602359b69b4a6b3d8cad8f56
font_01_sfnt_off0000d840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD840 10480 bytes
SHA-256: c0065d30623f4d680687f9df832d16e177b6e9fc1a5241557372e25662abffa2

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