Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7d5177f5ae50b52…

MALICIOUS

PDF

77.1 KB Created: 2021-03-24 10:26:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 72b5f2441ddab59a3eb526d1ac54ebe9 SHA-1: 91e3a0a8e0c975c0578159cfb6b2aeab2514ae13 SHA-256: a7d5177f5ae50b52ef41f165f0afc793f1b2d3b100737399dcebc11b2f4b8508
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://botokaw.ru/strik?utm_term=who+benefits+from+existential+therapy PDF link annotation
    • https://cdn.sqhk.co/fegokirar/ngehaMC/free_printable_cuss_word_coloring_pages_for_adults.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447464/normal_6010755aea4b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453098/normal_6056ca7562fcf.pdfIn PDF document text
    • http://meroxisawifagu.mygamesonline.org/how_many_types_of_bearings_are_there.pdfIn PDF document text
    • https://cdn.sqhk.co/wepiwojeta/jidVjf4/download_aplikasi_game_color_bump_3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463286/normal_6046847685150.pdfIn PDF document text
    • https://cdn.sqhk.co/luxixumogez/d5zPhaF/logo_maker_2020_3d_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460723/normal_6052cef0e5ed0.pdfIn PDF document text
    • https://cdn.sqhk.co/supetudoti/alGgcwF/gba_emu_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/tanusulirava/hibQQPB/pongo_and_perdita.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418584/normal_6025898b76d13.pdfIn PDF document text
    • http://xovijezup.mywebcommunity.org/27736586741.pdfIn PDF document text
    • http://pokawibu.iblogger.org/wigofix.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/how_much_does_rslogix_5000_cost.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/amares_eduardo_galeano_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/physical_science_high_school_textbook.pdfIn PDF document text
    • http://koxowideza.epizy.com/784410266.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/private_facebook_video_to_iphone.pdfIn PDF document text
    • http://guseboses.atwebpages.com/how_to_build_a_model_truss_bridge.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/warhammer_40k_traitor_legions.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF4 5464 bytes
SHA-256: 8ba2e293d4676c0708a5cea8200530bf6125aef70db1b13a46ee3988053ca2a6
font_01_sfnt_off00010272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10272 10808 bytes
SHA-256: ff4b7475d9f0608bb34c71e54c05846dcfb6aba7400c7f00f2b737a8007d8cae

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