Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee508379ce3d0ceb…

MALICIOUS

PDF

75.3 KB Created: 2021-02-21 03:14:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: c756a9f1db9a9ccecf8287f00058afe8 SHA-1: a1ab7b45e34515dab9198cd4a775fb8c7d71b4a7 SHA-256: ee508379ce3d0ceb9d13ca4d8854c63fee8b55743d6c3fcdde70f326e8fdfa4e
96 Risk Score

Malware Insights

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

The PDF was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a phishing site, likely intended to trick users into revealing sensitive information. No scripts were extracted, but the PDF structure and embedded URI suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/strik?utm_term=samsung+ce0168+tablet+full+specifications PDF link annotation
    • http://zumasuxujole.22web.org/jilonukarexumebipuvezolog.pdfIn PDF document text
    • http://tederurokeroga.iblogger.org/pobukexadujubode.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403407/normal_601e095829b4f.pdfIn PDF document text
    • http://nokuxitajorox.22web.org/chiari_malformation_surgery_name.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383687/normal_5fcb5aac0bd35.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486745/normal_5fc92be4a8776.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490539/normal_600699ff17fd6.pdfIn PDF document text
    • http://nexagufobutuf.22web.org/fikuwekonatajarukuzu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460970/normal_5fcea48c1418e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://siwixipupiluzu.rf.gd/xaterinelajoxufowezudowi.pdfIn PDF document text
    • http://bosurigazo.epizy.com/kelkar_committee_report_is_related_to.pdfIn PDF document text
    • http://sulosuduvemog.epizy.com/baseball_field_position_roster_template.pdfIn PDF document text
    • http://wuzuvulas.epizy.com/possessive_pronouns_worksheet_for_beginners.pdfIn PDF document text
    • http://pitepune.epizy.com/blank_instagram_template_2017.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD618 5908 bytes
SHA-256: 41211ac26853efd8ce82b217469b4ce96a9eaebd02eb6b0065607a7e0c7181cf
font_01_sfnt_off0000ea12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA12 11764 bytes
SHA-256: 7414dceb65b46663013fb5b89978bdcf3df4d37358388d6eaf6697f503d05eea
font_02_sfnt_off000111c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111C6 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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