Malicious PDF — malware analysis report

Static analysis result for SHA-256 58bbf0ec5abefad2…

MALICIOUS

PDF

74.8 KB Created: 2021-05-17 02:02:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: e238e4ea3ed5a3e9898c15aa1518046e SHA-1: 190dcc163a6436ce2478cd0428d236644149d921 SHA-256: 58bbf0ec5abefad2e93e224f7ddcdea711134619fa1067b130dfe30b2cd86e08
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to exploit users through a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/strik?utm_term=toyota+camry+2020+price+in+qatar PDF link annotation
    • https://cdn.sqhk.co/sosobigawe/J68mjba/18610940227.pdfIn PDF document text
    • https://cdn.sqhk.co/vilubofi/Eayheib/43125557430.pdfIn PDF document text
    • https://cdn.sqhk.co/dibitarebizu/srzhbhB/73178457415.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/21a2ad59-edf2-41ca-bcb9-7333ad468b7c/data_structures_made_easy_in_java_by_narasimha_karumanchi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b88e28b-0b00-4cb2-8420-702a587768ba/what_is_the_meaning_of_measure_for_measure.pdfIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/os_melhores_livros_espiritas_para_iniciantes.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/insurgent_2015_movie_download_in_hindi_300mb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47a50185-982e-4ac3-ba08-a9945e4ce392/bagatelle_hbs_730_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56033ed5-de5b-4e3c-9d86-f910dca00e19/60560340932.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/gokakagudasurezoderid.pdfIn PDF document text
    • https://s3.amazonaws.com/gagotaniwipure/49180139373.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/rotate_bitmap_android_studio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c2934ad-769e-4458-897f-b85176720108/nfpa_70b_infrared_testing.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/absolute_value_inequalities_exercises.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/58888924286.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/zabonutoduwalelejoxuzos.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/free_format_in_fortran.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/66432229687.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87a68266-1f9b-4bd0-90cd-3e469beeb05b/87296931172.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/74004980584.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccd2440f-c30c-4d77-a70b-8feaefecb4f8/jusapoz.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_off0000e604.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE604 5320 bytes
SHA-256: 19527024b3230b9090300d67d8a88878375c139a1115b69a766155515e45146f
font_01_sfnt_off0000f812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF812 11032 bytes
SHA-256: b59095a2ca1269a683b54c08ad4ba0a18b8fcb9505eee3c02a391c03110c7176

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