Malicious PDF — malware analysis report

Static analysis result for SHA-256 9015efeef1f0a81d…

MALICIOUS

PDF

67.6 KB Created: 2021-04-03 12:08:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: d26a4c0a1ef89e3188f2f8f309c35619 SHA-1: dd9c338d58056af504a762d0e539da090ef3c4e0 SHA-256: 9015efeef1f0a81d1171f8dfd246d0bc38791deacbbbd4aad09c90babaf158ac
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, mezovuduw.ru, which is likely used to host a phishing page or a second-stage payload. The document body appears to be corrupted or obfuscated, but the presence of the URI and the detection results strongly indicate a malicious intent, likely related to phishing or malware delivery.

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://mezovuduw.ru/strik?utm_term=weber+spirit+s-210+flavorizer+bars PDF link annotation
    • http://saniwigudovo.scienceontheweb.net/ranixigijarowutimurupape.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482206/normal_6037a88d65846.pdfIn PDF document text
    • http://pidagenavuziw.mywebcommunity.org/besixogalero.pdfIn PDF document text
    • https://cdn.sqhk.co/tokotuxajif/lebjI5R/kuvizoja.pdfIn PDF document text
    • http://obuv-kozha.ru/rowenta_pro_steam_station_partso47sw.pdfIn PDF document text
    • http://goodsfor.life/14972902337zif0h.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450340/normal_5ff29e55c7abb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417815/normal_5ff65c8f47159.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530846/normal_5fee3bae5ad48.pdfIn PDF document text
    • https://cdn.sqhk.co/lasanamemego/i9gcicJ/sculpture_garden_warwick_ny.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxeromewime/yHOf8hf/22477011542.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nisetekotixob.myartsonline.com/danielle_steel_books_best.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/perfect_square_binomials_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/vinpro_cost_guide_2018.pdfIn PDF document text
    • http://fipomazuwasa.epizy.com/livadoreriseminorud.pdfIn PDF document text
    • http://merowijesajov.epizy.com/laporan_praktikum_alkalimetri.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/bsf_online_registration_form_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/formacion_auditores_internos_de_calidad.pdfIn PDF document text
    • http://wexejobi.rf.gd/class_11_biology_ncert_textbook_download.pdfIn PDF document text
    • https://s3.amazonaws.com/towakog/carbonless_forms_near_me.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_off0000cb93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB93 5516 bytes
SHA-256: 09e1c1767f1fac2f7da347cf0177fc23d95c036f634769fd4fa7e793aeecd6cb
font_01_sfnt_off0000de8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8A 10264 bytes
SHA-256: e7d004f517db0d5b2867be86d468017a52cd28fe87d2f30c1ee52e3bc857c6dc

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