Malicious PDF — malware analysis report

Static analysis result for SHA-256 466dce4ca649984b…

MALICIOUS

PDF

63.3 KB Created: 2021-02-12 09:59:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: c22311cc0a3e7e6fd90ffcebf2a825f6 SHA-1: c7551e8c5430d27b8ddde3c8127482e0241f69fd SHA-256: 466dce4ca649984b87c2d4a2fc5766d45a86f0dcaf431c76f043567460993978
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 disguised as a weather radar search result. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. No scripts were extracted, but the presence of the malicious URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jacksth.ru/123?utm_term=live+weather+radar+rochester+mn PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4371536/normal_5fed92555d9f9.pdfIn PDF document text
    • https://cdn.sqhk.co/lituxopevuk/1PJ4lub/1063388255.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366305/normal_601d2729e5c7d.pdfIn PDF document text
    • https://cdn.sqhk.co/pavujakorige/ahiigeW/moto_camera_2_apk_xda.pdfIn PDF document text
    • https://cdn.sqhk.co/wodaximewule/bmHjcQE/92632413776.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449615/normal_601b0558e4b15.pdfIn PDF document text
    • https://cdn.sqhk.co/zotiperugi/igcTDaS/98234490958.pdfIn PDF document text
    • https://cdn.sqhk.co/fofodafexadu/hiDggjh/38924193383.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426407/normal_5feec45bd482f.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/gdQia1Q/16654514219.pdfIn PDF document text
    • https://cdn.sqhk.co/kamozipu/twIibia/16345554394.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/boduxatavepe/2467336864.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/fakovaxerela.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/panekuj.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/ielts_advantage_reading_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jikopot/nesitu.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/alif_laila_all_song.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/capital_markets_authority.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/52303988127.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/tidad.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/33635003080.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/5888018706.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_off0000bd55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD55 5240 bytes
SHA-256: 2443a062482a8ccf8f032dd71aa78c955de6da5d919d892ee9b19617a591a096
font_01_sfnt_off0000cf0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF0F 9612 bytes
SHA-256: 835c4a59a409bb705437e89b688f95dfd3567cfa1b1cb5bec5e218bf78c2b464

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