Malicious PDF — malware analysis report

Static analysis result for SHA-256 c80cd22325e74d87…

MALICIOUS

PDF

78.2 KB Created: 2021-03-03 14:30:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: bf81c28429a90ce05197c530f8d500ef SHA-1: 7395ab35f0f348534936369ecfc63ae2121b189a SHA-256: c80cd22325e74d8773b21f25c42a6bd459b565b9ba0755b822bda394086f5a25
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. No scripts were extracted, but the presence of an external URI points to a social engineering attack.

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://botokaw.ru/strik?utm_term=eyelash+extensions+school+near+me PDF link annotation
    • https://cdn.sqhk.co/sevafeluba/fDNghhc/69021434848.pdfIn PDF document text
    • http://nigma24invest.online/zapzapmath_school_k-_6_gameslp174.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/thoth_tarot_gold_edition_review2bf27.pdfIn PDF document text
    • http://astropsychology.website/xefasofewn.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/chaB9tE/53554501970.pdfIn PDF document text
    • http://okstore.info/language_is_arbitraryog0k1.pdfIn PDF document text
    • http://vezdesami.ru/1744245205461s93.pdfIn PDF document text
    • http://hairhome.moscow/zitebajebugasetokadana4b7td.pdfIn PDF document text
    • http://creditstar-kabinet.com/blackmagic_atem_television_studio_pro_hd_tutorial69nc0.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://vumamuv.myartsonline.com/2013_ford_f350_service_truck.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/gonirow.pdfIn PDF document text
    • http://satawakerexe.atwebpages.com/what_are_the_components_of_academic_writing.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/warhammer_deathwatch_ps4_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/attu_movie_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/electron_configuration_and_orbital_notation_worksheet_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/american_horror_story_hotel_soundtrack.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/daftar_harga_kabel_supreme_2019.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_off0000e718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE718 4952 bytes
SHA-256: 752a47805c45d6067d3a96dd6b2c800dcc69a21cf9d08e62b75f3838925ebaf6
font_01_sfnt_off0000f7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7BE 10676 bytes
SHA-256: e2e5bb53f046e93c481e37ed8fa9d1032c54833c494e14af6b31c054d08f2573
font_02_sfnt_off00011c0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C0A 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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