Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddd3d5887647919e…

MALICIOUS

PDF

68.0 KB Created: 2021-02-21 17:08:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ae60d4851344508d359f97d6adb23413 SHA-1: 5239f734f7d3bc8ed2c6799470d91b25e1fe5a1f SHA-256: ddd3d5887647919ebdf61dbb2157d0d41a0a6496c1ca126b1035982813978be3
104 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://maypoin.ru/123?utm_term=honda+gcv160+manual+lawn+mower PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460230/normal_5fcb6cf29cfa9.pdfIn PDF document text
    • http://rimisirotox.iblogger.org/barnsley_sixth_form_college_jobs.pdfIn PDF document text
    • http://viwowiziboso.22web.org/99312404134.pdfIn PDF document text
    • http://pmaider.com/sifususiruvusadifoporuwuwquaua.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500453/normal_5ff81e23c1a70.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417318/normal_6007e05ad04ca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444366/normal_5fc6935b5abcb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424953/normal_5ff49c7159211.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488116/normal_6022459845bf1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puzenufamem.rf.gd/43386119519.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxirefare/netbeans_for_mac_yosemite.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/legopamazomisute.pdfIn PDF document text
    • http://jekedizineropo.rf.gd/panel_discussion_format_guide.pdfIn PDF document text
    • http://vanakodezifezuv.epizy.com/ateneo_de_naga_university_application_form.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_off0000cc4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC4C 5544 bytes
SHA-256: e34bb5716855800fb328eee64cc12aea09ea1fd6049ae1926bc0868b45ac53ab
font_01_sfnt_off0000df24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF24 10652 bytes
SHA-256: 125a89154ecea2d4c592ac2a1a83a7a0655da8e8e2700914a2b23f22fa63c33e