Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f44c8bf63ff73a5…

MALICIOUS

PDF

70.8 KB Created: 2021-03-15 23:33:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 248e16aeff0643e0ed315666350f7c8d SHA-1: d578609e4bbf43ebe749b9b870134ded9907aa73 SHA-256: 0f44c8bf63ff73a5f61fc8ff35c6f9080051ae9125c3412f1f2dc4858ebca858
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with heuristics indicating the presence of external URIs. The document body, though partially corrupted, suggests a lure related to 'War dragons breeding guide 2020'. The embedded URLs likely serve as download locations for further malicious payloads or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://kuzutuzo.ru/wix?keyword=war+dragons+breeding+guide+2020
    • http://mylic.ru/philips_respironics_system_one_filter_changel4z1f.pdf
    • https://cdn.sqhk.co/jovowosifo/bp7igvu/40002175090.pdf
    • http://mainsale.pro/ridojekegasupafoujke6.pdf
    • http://ig-objectionform.com/sinaxarafujadovj0ak.pdf
    • http://mjawebdesign.net/landing_page_templates_free_in_htmld3sgh.pdf
    • https://cdn.sqhk.co/ravuviwidi/Jjgjjie/rexefojoripukobelaxe.pdf
    • http://sokfresh.fun/what_are_the_3_economic_questions_all_societies_facexhs83.pdf
    • http://avit0.pro/pajuzagoberesuzekuxaxarnkxo6.pdf
    • http://megahit.space/minority_interest_balance_sheet_accounting22631.pdf
    • https://cdn.sqhk.co/daribugubive/3nijjUy/herald_trumpet_fanfare_sheet_music.pdf
    • http://emirofficialzm.com/yamaha_mt_15_imagesaegwa.pdf
    • http://gromstroy.com/neet_application_form_2019_ntaf7q0u.pdf
    • http://ritual-venki.online/hp_1536dnf_printer_specificationsts134.pdf
    • http://ompala.store/rozutanitujikixuseba96wsz.pdf
    • http://momentshop.space/11332756834uj76o.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/3450a305-400d-4492-ab5b-d46697ea260a/67582734804.pdf
    • https://11484d69-1612-41b9-9199-165df1f08223.filesusr.com/ugd/e2f197_1028b17c4c6e4a98ab3286a59134362e.pdf?index=true
    • https://8ed7b8cb-9bae-4def-ad9b-66b28cd11f91.filesusr.com/ugd/740d8c_609d52aa04a5412a8b99b2d39d0db7f1.pdf?index=true
    • https://uploads.strikinglycdn.com/files/0b1ac018-f9e2-4cbe-90d5-ebce93951ce8/66528464687.pdf
    • https://02796127-04ec-4c85-b270-c6f7310ebb18.filesusr.com/ugd/ce0e6d_33ad5154ddfd4c36b2dbbca7f3270d0c.pdf?index=true
    • https://0fc0baf9-b884-4fcd-968e-f93c0f938930.filesusr.com/ugd/68ec51_bbceec97e9f3479995769bb2ff81f728.pdf?index=true
    • https://uploads.strikinglycdn.com/files/c1d5a0da-bf84-4451-9585-77ae20b1add1/66500646602.pdf
    • https://uploads.strikinglycdn.com/files/cc816694-e359-4568-b461-25e5292c2a8d/hisense_air_conditioner_service_manual.pdf
    • https://93dbb2ad-f1e8-4c6c-adfd-2ef134399473.filesusr.com/ugd/df4650_3b695779c3944f3e9b505583ac759883.pdf?index=true
    • 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_off0000d66b.bin
76a1b499e2399a7b860a19dacc87a5222b5c7381df093701900241597ec766a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD66B 5388 bytes
font_01_sfnt_off0000e8d5.bin
e6407fcaeb254df5c090f9bb895b560c279c8c3e564aac0ea8b4ea149ede179c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D5 10336 bytes

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