Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c357f2002c07832…

MALICIOUS

PDF

69.6 KB Created: 2021-02-23 22:38:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: c35bd9026995f0495c818b65a260f44d SHA-1: 088d5088e676a53443f72b1a2f5c6e2739a80d1a SHA-256: 0c357f2002c0783211acc5f6291135121d51877ac2a16cda0b94b98a4a14c957
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jottigo.ru/wix?keyword=identifying+poetic+devices+worksheet+answers PDF link annotation
    • http://nafaguxidu.iblogger.org/76036145155.pdfIn PDF document text
    • http://kuroramogesok.iblogger.org/lutopotuvujagisuvipejevez.pdfIn PDF document text
    • https://muwewemumefiga.weebly.com/uploads/1/3/0/8/130874681/8243089.pdfIn PDF document text
    • http://jumbochecker.com/fubitanojeneia9wf.pdfIn PDF document text
    • https://loseseseveru.weebly.com/uploads/1/3/0/8/130813975/79de103.pdfIn PDF document text
    • https://ponasamexow.weebly.com/uploads/1/3/1/3/131398296/6651346.pdfIn PDF document text
    • http://zomuregunaradu.iblogger.org/comida_saludable_informacion_en_ingles.pdfIn PDF document text
    • http://tehnikator.ru/jawefuevcjm.pdfIn PDF document text
    • http://libralab.digital/53679371562w6fvj.pdfIn PDF document text
    • http://tronreserve.online/crystal_reports_2016_case_statement_multiple_valuesdswgv.pdfIn PDF document text
    • http://kekebum.22web.org/liszt_el_contrabandista_sheet_music.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lenixad.epizy.com/vutujivunufojalejifo.pdfIn PDF document text
    • http://rozosijamuruxo.rf.gd/games_2019_new_apk_for_android.pdfIn PDF document text
    • http://gegapitigiz.rf.gd/mailchimp_template_design_inspiration.pdfIn PDF document text
    • http://kutadomirezo.rf.gd/bible_study_guide_for_all_ages_cd.pdfIn PDF document text
    • http://ruzuzis.rf.gd/74402533868.pdfIn PDF document text
    • http://volemefejosi.rf.gd/borders_for_microsoft_word_2010.pdfIn PDF document text
    • http://bususetut.epizy.com/16529617962.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_off0000d27d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27D 5640 bytes
SHA-256: 05623033cb68d98ec8af8d0d58bc9ef086a791b496e15261c600d553aea0203c
font_01_sfnt_off0000e5d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D5 10312 bytes
SHA-256: 5fcd9077563b9b90e3048de549e30983ac3494a927a10ac1025f759d04174fa3