Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ce0c7c0a2308a34…

MALICIOUS

PDF

207.9 KB Created: 2021-02-19 12:20:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 56b450f9c47efc534274bf987e21a0d3 SHA-1: f4b681ea2e97b183fb2d8405aecb5743b8dda61c SHA-256: 2ce0c7c0a2308a343ee3a0707ff2adde1ce625931c95ba9f8c63a1888a2ab075
104 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by a machine learning classifier and ClamAV. It contains an embedded URI pointing to 'https://bologen.ru/123?utm_term=die+hard+script', which is likely a phishing or malware distribution URL. The heuristic 'SE_URGENCY_LURE' suggests the document content attempts to create a false sense of urgency to prompt user interaction. Although no scripts were explicitly extracted, the presence of embedded URIs and the ML classification indicate a malicious intent, possibly involving a drive-by download or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://bologen.ru/123?utm_term=die+hard+script PDF link annotation
    • https://cdn.sqhk.co/wobuwozavenu/ibgjTge/xizezilupiwukijuse.pdfIn PDF document text
    • http://genusadnlo.space/65458857181dqrok.pdfIn PDF document text
    • https://cdn.sqhk.co/tabuguran/iaIJyig/bulezepopixidoduvowalo.pdfIn PDF document text
    • https://cdn.sqhk.co/tisewesir/5ihunav/semupapotatevulexideku.pdfIn PDF document text
    • https://cdn.sqhk.co/pevelefotuve/GhcmY3b/bass_booster_app_download_for_laptop.pdfIn PDF document text
    • http://lessonsonline.site/565205116835r1rj.pdfIn PDF document text
    • https://cdn.sqhk.co/fakupavod/IicnIKZ/ally_smash_bros_ban.pdfIn PDF document text
    • https://cdn.sqhk.co/pofevadamem/iRhagjg/dosikogexab.pdfIn PDF document text
    • https://cdn.sqhk.co/dilizilozok/iaOORKX/91405940202.pdfIn PDF document text
    • http://wacc-cat.org/wogemaguxewakiguzabinigunibc1m.pdfIn PDF document text
    • https://cdn.sqhk.co/nobutowug/GjgMVhe/bakopeginajoxu.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/remufuzu/oracle_ilearning_quiz_5_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/al_di_meola_guitar_book.pdfIn PDF document text
    • http://tudozujuxijoz.rf.gd/vozuluzabonaworodijupoza.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/22267055209.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_off0002f89b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F89B 5128 bytes
SHA-256: 1c31e81c19068760263f3a090354efc6d2aa916dda7357ca6617fe46ff250175
font_01_sfnt_off00030a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A0B 12020 bytes
SHA-256: 1d9de48ed4197ddaf67c3c5e52820cbfbc9035d49e1ff0199f0489b6a540f75a

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