Malicious PDF — malware analysis report

Static analysis result for SHA-256 5feba5ed7bc78004…

MALICIOUS

PDF

75.7 KB Created: 2021-02-22 09:46:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: f6fe7447a71c85508e8f73153bebba83 SHA-1: eaa9ffdc4b966c0997c6cc87e77e5cf15c6eef93 SHA-256: 5feba5ed7bc780046ae2d45a7b75e1018eed8a85867d00f22a1720b2738a041d
96 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://druttle.ru/wix?keyword=afterburn+standridge+pdf PDF link annotation
    • http://shopbest.online/16599372395aywmw.pdfIn PDF document text
    • http://mipefukonuvav.iblogger.org/gertrude_stein_selected_writings.pdfIn PDF document text
    • http://idealslim-italiaofficial.site/bissell_crosswave_pet_pro_spare_partshdvtd.pdfIn PDF document text
    • http://chatik85939775.fun/seventh_day_adventist_church_manual_2015l2h2m.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/miwolezedubujoz/bristol_stool_chart_child.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/48796678034.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/55927084834.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/best_template_video_editor.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/zitujawim.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/parental_advisory_logo_app.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/67053046176.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/64818523069.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/amu_application_form_date.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/zutijuzelujaxutefi.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/xilavutirobezis.pdfIn PDF document text
    • https://s3.amazonaws.com/gonima/critical_role_season_2_character_sheets.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_off0000ddd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDD0 5308 bytes
SHA-256: a5cced001ea3f095a467e52937b00683b9741477a0df2402d5ab62e8357f7569
font_01_sfnt_off0000efe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE9 15640 bytes
SHA-256: 453cd0797322aa5e70f499ab4191cacb9f3f9bd93a36e9e89929200febf5cda8

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