Malicious PDF — malware analysis report

Static analysis result for SHA-256 5032df5977cc4540…

MALICIOUS

PDF

80.3 KB Created: 2021-02-15 09:44:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 6d72024df10415285d9f54ac6e6d4fff SHA-1: 5e98c17a27f10ed4ac84e5002d74e0a484a979a0 SHA-256: 5032df5977cc4540b0e6ecc3c526cd39dd5830644f1d7207c6b8a7bb2f228837
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect the user to the malicious URL.

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://seumenha.ru/strik?utm_term=pop+art+hashtags+on+instagram PDF link annotation
    • http://izzzaaa.space/chupke_chupke_full_movie_in_720pcke9w.pdfIn PDF document text
    • https://cdn.sqhk.co/furaxofir/giiexgh/85855101568.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475720/normal_5fdcc4f8640ed.pdfIn PDF document text
    • http://sqrab.top/barron_s_gre_1000_word_list1drgy.pdfIn PDF document text
    • http://vilopeg.xyz/el_placer_de_leer_y_escribir._antologC3ADa_de_lecturas_onlinekhtf1.pdfIn PDF document text
    • http://tameeniraq.com/61451647102kwg3y.pdfIn PDF document text
    • http://besemafobekilir.22web.org/room_reservation_letter_format.pdfIn PDF document text
    • https://cdn.sqhk.co/mugegiduveb/jWidja3/abalone_price_usa.pdfIn PDF document text
    • http://devlp.club/cristianismo_puro_simplesz4tt7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nirutavikuda.epizy.com/gotham_extra_bold_font.pdfIn PDF document text
    • http://levegukesiwus.rf.gd/37377116386.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/cfd_software_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/17004977982.pdfIn PDF document text
    • https://s3.amazonaws.com/widetunipet/font_awesome_icons_list.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/large_avocado_nutritional_information.pdfIn PDF document text
    • http://venasipinizi.rf.gd/matumevesome.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1BB 4872 bytes
SHA-256: 5ad8887d05667eba25ae414d63e672dfd440198ff710fd321eaa7474e98db0f7
font_01_sfnt_off00010206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10206 10644 bytes
SHA-256: e566d7491cf7f51087c6b3a70b2e697a61e1c33cad94d5fc49480b5ce2e58e0f
font_02_sfnt_off00012646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12646 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2