Malicious PDF — malware analysis report

Static analysis result for SHA-256 d67af6dfe2bfb31a…

MALICIOUS

PDF

76.0 KB Created: 2021-03-01 09:05:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 23548b9310e3a01aba43eb6cbe132dae SHA-1: cd10b201c842ec79a71daf8557394ba2065ec3f8 SHA-256: d67af6dfe2bfb31a8c482f549fec63ece9a2be4f97b89ddac40d919ca5c5fb18
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified as a phishing lure related to health and longevity. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to a phishing or malware distribution site. No scripts were extracted, but the presence of multiple suspicious URLs suggests a phishing campaign.

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://ponafet.ru/award?keyword=best+foods+for+longer+life PDF link annotation
    • http://trikolor.site/cavernous_malformation_minimally_invasive_surgerybneut.pdfIn PDF document text
    • http://freehookup.xyz/simple_file_upload_html_template5djuz.pdfIn PDF document text
    • https://cdn.sqhk.co/tejosepu/jabKohg/boomerang_movie_review_vikatan.pdfIn PDF document text
    • http://lnstagram-verificationbadgeform.com/417234575666qzf3.pdfIn PDF document text
    • http://pressit.space/291164339869jn7x.pdfIn PDF document text
    • https://cdn.sqhk.co/jagugide/ieyhbzW/98668137955.pdfIn PDF document text
    • http://bupro.asia/xikerimaxewoxikezubaqfj6d.pdfIn PDF document text
    • http://itravelimpressions.com/android_arsenal_viewer3rro9.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/hjc7idC/63372480016.pdfIn PDF document text
    • http://voicebftyi.com/govinda_namalu_in_telugu_scriptqp9pr.pdfIn PDF document text
    • https://cdn.sqhk.co/mivoteloxip/jWKhsor/mopesokasazibuvapur.pdfIn PDF document text
    • https://cdn.sqhk.co/jusitufugaf/RYyjbhh/mufikupip.pdfIn PDF document text
    • http://cosmosqrab.online/gixoluvevepaduxipv4zs.pdfIn PDF document text
    • https://cdn.sqhk.co/tititafoza/vDihgjL/28430343910.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/widofafane/where_is_equity_investment_on_balance_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/15999908034.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/5115479302.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/litefota.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_off0000ed1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED1F 4916 bytes
SHA-256: c2ca12e603b8809e55e038420a4f8e8d5b8c8679a754e813d7f3d4f500d8e5e4
font_01_sfnt_off0000fdea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDEA 10704 bytes
SHA-256: 1e2e771d53ca8b8c3628e3f89b04c1e623dd72b82e7f1619108931da41036872

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