Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd24b4356edeaabf…

MALICIOUS

PDF

77.8 KB Created: 2021-03-03 00:22:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 08243800eaafb79a7d16e7f57856dd12 SHA-1: da9b791850775f2e51181caa751e73650f7cc9c6 SHA-256: cd24b4356edeaabfdf8815feabb5d6fe3b107543853a6490b24ac76102a9ca9b
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating an external URI pointing to 'https://ponafet.ru/strik?utm_term=john+deere+l130+snow+plow'. This URL is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.

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/strik?utm_term=john+deere+l130+snow+plow PDF link annotation
    • http://gokutep.22web.org/dell_optiplex_755_driver_pack.pdfIn PDF document text
    • https://cdn.sqhk.co/noxuluni/gj0tdhg/solar_system_projector_night_lamp.pdfIn PDF document text
    • http://kipegujodup.getenjoyment.net/jblm_main_gate_visitor_center.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bawilifugoxak.epizy.com/how_to_write_a_book_and_print_it.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/38051425274.pdfIn PDF document text
    • https://s3.amazonaws.com/tevigotu/someone_like_you_piano_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gagagakigibapo/40354257268.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/haec_dies_byrd_sheet_music.pdfIn PDF document text
    • http://kenubuw.epizy.com/61049405729.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/top_annotation_apps_for_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/cakephp_3_form_control.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/balaxirekofavugewuduturaf.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/answer_me_my_love_swamp_dogg.pdfIn PDF document text
    • http://lapukup.epizy.com/is_windows_10_free_for_students.pdfIn PDF document text
    • https://s3.amazonaws.com/mufukep/gepiro.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_off0000f590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF590 5276 bytes
SHA-256: 293717f90246bc63ab51c195b9fc3f1626d1673782db2def5e82aed6df4f1673
font_01_sfnt_off00010795.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10795 10320 bytes
SHA-256: 119d0df65e38a772e0fa7db5dafe1113fc7d5e0fd02654ad8867ab3fb42b8e0b