Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2a7fc0e95557e1e…

MALICIOUS

PDF

67.7 KB Created: 2020-12-22 08:14:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 961a715f42d7dec3531685dac45b9460 SHA-1: 121ed1b50f8e94ca420f333f0b161376a4fc11d5 SHA-256: b2a7fc0e95557e1e5a4d62110a51e7e58faa824f53fee527dbf9d2bb5b465f6d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, contains text related to a 'beach soccer world cup finale live' which serves as a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://trafffi.ru/strik?utm_term=beach+soccer+world+cup+finale+live PDF link annotation
    • https://mijipunipiju.weebly.com/uploads/1/3/1/4/131455283/bewoxajexo.pdfIn PDF document text
    • https://nutajutibasetak.weebly.com/uploads/1/3/4/6/134638930/jewibatafa-tarapigitojerib-sufizejizolos-zuber.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413235/normal_5f97451426552.pdfIn PDF document text
    • https://xitukuwelup.weebly.com/uploads/1/3/4/3/134340625/acba796e1.pdfIn PDF document text
    • https://rafoduju.weebly.com/uploads/1/3/4/6/134680113/6e592059134cf.pdfIn PDF document text
    • https://tuzidatawuno.weebly.com/uploads/1/3/4/9/134902979/514404.pdfIn PDF document text
    • https://lazumuron.weebly.com/uploads/1/3/4/8/134863931/31f353e1e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f870c924fba5.pdfIn PDF document text
    • https://togurekeve.weebly.com/uploads/1/3/4/0/134040335/tepotowomu_duvasofuwok.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/takeju/69211876454.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/74125920182.pdfIn PDF document text
    • https://s3.amazonaws.com/gezejoputiwinu/wufesesulupi.pdfIn PDF document text
    • https://s3.amazonaws.com/mafavuzenoliki/bomber_crew_switch_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/cattle_inventory_spreadsheet_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/bad_words_in_english_list.pdfIn PDF document text
    • https://s3.amazonaws.com/fenatagazise/caracteristicas_psicosociales_del_adulto_mayor.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000baa9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAA9 5200 bytes
SHA-256: ca59fe482600bfc216cc6fca45bdf2cc9040756523a38edc646c52cedec3be47
font_01_sfnt_off0000cc83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC83 5444 bytes
SHA-256: 5421565e0236b4c5e0f1429588521a620078851d1780a9146aa49a0b37657fe0
font_02_sfnt_off0000df1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF1D 10008 bytes
SHA-256: 2eedbb01226dafd2d2c0416fa8b36bd59633c35656597265599f4deabdcb7196

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