Malicious PDF — malware analysis report

Static analysis result for SHA-256 bedd11ae9c4f34b3…

MALICIOUS

PDF

75.7 KB Created: 2021-04-04 19:06:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c158c1f1127c2a652991e7a8c50acd7d SHA-1: d69dee0b32be4fa4d714d0c2e452c848c673950e SHA-256: bedd11ae9c4f34b345fe73191eae0e3487d397d603885643f0b400f4957af0b4
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely a phishing lure for a game download. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were directly extracted, the presence of external links and the nature of the PDF suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=free+download+game+sword+art+online+for+pc+offline
    • http://lofokumado.22web.org/52494401168.pdf
    • https://cdn-cms.f-static.net/uploads/4401694/normal_6014d76894af7.pdf
    • http://kigurumi.org/how_to_program_my_directv_remote_to_my_yamaha_receiveru12sr.pdf
    • http://gudokav.sportsontheweb.net/tiwumazi.pdf
    • https://cdn-cms.f-static.net/uploads/4406223/normal_5fd17e6ba6eee.pdf
    • http://meinekarten.best/aditya_hridayam_ms_subbulakshmi_free_mp3_downloadus18v.pdf
    • http://nomerojelevat.22web.org/ro_m_eternal_love_stalker_guide.pdf
    • http://tiwimifozukimu.medianewsonline.com/ccna_200_125_self_study_lab_manual_guide.pdf
    • http://medazuxa.mywebcommunity.org/periodo_arcaico_inferior.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tudutov.rf.gd/tabla_peridica_2020_a_color.pdf
    • https://uploads.strikinglycdn.com/files/1d13f503-bdad-4e83-937d-3769580e2cb0/lifesmart_hot_tub_filter_78460.pdf
    • http://ginowane.onlinewebshop.net/tonad.pdf
    • http://bekabugi.epizy.com/11107155000.pdf
    • https://uploads.strikinglycdn.com/files/76f0b5c1-ffed-4418-928a-870eb7fc565b/american_bases_in_germany.pdf
    • http://negatesuxa.epizy.com/guia_fisica_cbc.pdf
    • https://uploads.strikinglycdn.com/files/bb5e896e-c857-4076-8c4c-5a2d7cf12ae6/25405496196.pdf
    • http://xogijowag.onlinewebshop.net/learn_arabic_words_in_english.pdf
    • http://genobobef.rf.gd/libro_degli_spiriti_allan_kardec.pdf
    • http://vagawujososoje.epizy.com/funcion_de_la_hormona_adrenalina.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8e8.bin
c0dda40e041ebc62cd57642d55b73337a720932995d18b5ab6a0bb3541dd610d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E8 5520 bytes
font_01_sfnt_off0000fbb7.bin
f085194fd1c50999c795066f948736eadf4b7caa1330db94705fce2c692f1c88
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB7 11280 bytes