Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bd9c569d8dc64d9…

MALICIOUS

PDF

71.2 KB Created: 2021-02-18 19:56:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: f7c3dc81f7f1e61fa73e400618d3fbd3 SHA-1: 0285acf395ab90100055c2b149465a281c382069 SHA-256: 0bd9c569d8dc64d9bb16eb8d98870a02a78f3bbbd06f0b6b6e1bafa44f3dc8d4
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URI pointing to a suspicious domain, 'baarspo.ru', which is likely used to host malicious content or redirect the user. The document body is heavily obfuscated, but the presence of the external URI and the malware detection strongly suggest a phishing or malware delivery attempt.

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://baarspo.ru/aws?utm_term=rwby+silver+eyes+song PDF link annotation
    • http://detonic-romania.website/1259321563750p69.pdfIn PDF document text
    • http://org-fruit.space/gigibejavagabunemeromadu9rowx.pdfIn PDF document text
    • http://garantiya62.ru/475298508829fk1i.pdfIn PDF document text
    • http://dk-inc.xyz/mercury_25_hp_2_stroke_for_saledkc92.pdfIn PDF document text
    • http://flowerport.market/wonder_study_questionsnd2gk.pdfIn PDF document text
    • https://sejixegagetuta.weebly.com/uploads/1/3/0/9/130969850/49da69d.pdfIn PDF document text
    • http://devlp.club/romogogulejexelm0aj.pdfIn PDF document text
    • https://sosakenokez.weebly.com/uploads/1/3/4/4/134445245/vuziragopipewi-marunexelefulun.pdfIn PDF document text
    • http://egosikenclub.com/83174517347ry72p.pdfIn PDF document text
    • http://bred-enligne.com/descriptive_writing_worksheets_for_grade_7y2wod.pdfIn PDF document text
    • http://vquest.website/takalakidisezusizorenxkfs6.pdfIn PDF document text
    • http://vasupab.iblogger.org/74637133412.pdfIn PDF document text
    • http://jgndegs.info/tamilrockers_tamil_hollywood_movie_hdu2473.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/pirosisob/solving_one_variable_equations_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jezobasit/manualidades_navideas_con_fieltro.pdfIn PDF document text
    • http://wabupotobexuxu.epizy.com/hypertension_treatment_guidelines_drugs.pdfIn PDF document text
    • http://jotikovan.rf.gd/94642079889.pdfIn PDF document text
    • http://disobaratid.rf.gd/drinks_menu_template.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/ruletevabelina.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/gitopolopewivivo.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/susimasimakofesawipaxoz.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_off0000daf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF5 5044 bytes
SHA-256: ecc81c52636150b8d0f8c096e8a30038100f7ef500e99805732bcd312b940006
font_01_sfnt_off0000ec51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC51 10440 bytes
SHA-256: 7c964f201f6395fb7d790492e63a2affcda9d27dcaef13c3c7628a9b9223563e

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