Malicious PDF — malware analysis report

Static analysis result for SHA-256 fca32c3bf8e7264c…

MALICIOUS

PDF

79.9 KB Created: 2021-02-14 02:44:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: e8a0b400ac7a38cdc776ce575cee33aa SHA-1: fd3c0a15668ff66c48dca0eb2b1c6030d2b5790e SHA-256: fca32c3bf8e7264c17d06ecfb611b468b92d01e159d1af86b463d37aa21b5bd0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. ClamAV and ML classifiers strongly indicate maliciousness. While no scripts were directly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a potentially harmful external resource.

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://druttle.ru/wix?keyword=storm+lover+kai+characters PDF link annotation
    • https://cdn.sqhk.co/kufejagefep/gdihjDe/hit_the_glass_door_of_oven.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404488/normal_600c4d9b21b5c.pdfIn PDF document text
    • http://xufaroruguvotel.iblogger.org/formal_and_informal_agencies_of_education_ppt.pdfIn PDF document text
    • http://lajulufubugo.22web.org/67084159006.pdfIn PDF document text
    • http://bavunexebiri.iblogger.org/78168883613.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383565/normal_5fd267502ba9f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://valogaberel.rf.gd/vodusebigizubozusox.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/informal_letter_writing_format_spm.pdfIn PDF document text
    • http://wazikaje.rf.gd/blauj_dizain_photo.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/auditoria_medica.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/vokelowosaxuwatujepode.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/16154459513.pdfIn PDF document text
    • http://wadedizori.epizy.com/landscape_images_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/bullet_basya_kannada_movie_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/46551354602.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/lebodadorurifodujetix.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_off0000fd69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD69 5264 bytes
SHA-256: 7756cb273ece6bfc0a7425ac9ac1f34f52a2548113e81e0917a795341c227c3d
font_01_sfnt_off00010f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F25 10608 bytes
SHA-256: df16f77f3f8c784d5a835cc3f21d174cbe34ee529147f18c903686c1b1d9cc28

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