Malicious PDF — malware analysis report

Static analysis result for SHA-256 025e01396f136ad6…

MALICIOUS

PDF

73.0 KB Created: 2021-02-21 04:03:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 241ee2f13a616320a7929665bb260cde SHA-1: 862ef618a253589c8e23347b8b23be688f1372cc SHA-256: 025e01396f136ad6310fea4c784c210f38616979443c75badd1a68ed9d653dea
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://yafferge.ru/123?utm_term=chick+fil+a+job+application+process In PDF document text
    • https://cdn.sqhk.co/lojosewude/iIyQhc2/domino_dominoes_online_apk_mod.pdfIn PDF document text
    • http://miworusak.iblogger.org/2009_hyundai_sonata_maintenance_schedule.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405674/normal_5ff857a9be7f6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367646/normal_601d845b5cdb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416930/normal_6007da163ab1d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405662/normal_60012a840649e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493195/normal_5fd644e9548a2.pdfIn PDF document text
    • http://philonio.online/bruxelles_formation_rue_de_stallen677p.pdfIn PDF document text
    • http://bitcoinlearningcentre.online/divisibility_worksheet_for_grade_4n6nuh.pdfIn PDF document text
    • https://cdn.sqhk.co/juvebuzizej/HriaNid/moto_camera_2_apkpure.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486758/normal_5fefd2b41e14c.pdfIn PDF document text
    • http://iqecoportal.ru/blender_tutorial_character0ly00.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://memavopunon.rf.gd/weekly_tax_table_2017_excel_format.pdfIn PDF document text
    • http://pisuwemale.epizy.com/xepabato.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/10408030607.pdfIn PDF document text
    • http://fasilew.epizy.com/video_maker_windows_7_free.pdfIn PDF document text
    • http://jilawovo.epizy.com/farewell_party_invitation_template_free_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/gisorulasosi.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_off0000df01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF01 5288 bytes
SHA-256: 7f776c41ade039c74a3d01d8b4812cbe01598cff69118b94fd8aacf1ad4ece0b
font_01_sfnt_off0000f0fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0FB 11104 bytes
SHA-256: f8d3a5081a975aee392638bd4e320b55434d20aa0424dfcb81c7fc8ab983f50a