Malicious PDF — malware analysis report

Static analysis result for SHA-256 4db82f742e2febfe…

MALICIOUS

PDF

64.6 KB Created: 2021-02-18 20:35:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 2d2dee649cfae901d8987b80361458fb SHA-1: eb90afef49d8da533ab4ae25002ed1a716f34bd6 SHA-256: 4db82f742e2febfe18ce29ea9d163df3269106f4dbdd1e2654d730f7fe4f1286
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL `https://baarspo.ru/strik?utm_term=scorch+trials+streaming+free` is the primary indicator of a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit vulnerabilities or trick users into navigating to malicious sites.

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://baarspo.ru/strik?utm_term=scorch+trials+streaming+free PDF link annotation
    • http://dkblogin-de.com/how_to_use_verizon_hotspot_device9ho4o.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477156/normal_5fe047e5650c5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443824/normal_5fe3f2e4a1f70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474456/normal_6020c2cbcbc8b.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/debiwelof/free_math_multiplication_worksheets_for_4th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/powow.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/total_insurance_incident_report_ielts.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/pete_davidson_ariana_grande_song.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/master_plannery_puttur_information.pdfIn PDF document text
    • http://zubeleboju.epizy.com/93510741976.pdfIn PDF document text
    • http://zaritopewebo.rf.gd/jetipijaroparugi.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/sewufo.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/49298721850.pdfIn PDF document text
    • http://lagixilutami.rf.gd/apa_format_6th_edition_reference_generator.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/pirogu.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/23300351677.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/zododefipavivinifawezino.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/semabezuvuzob.pdfIn PDF document text
    • https://s3.amazonaws.com/woxorojero/kekelapanetolilijob.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/73035190725.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_off0000bc4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC4D 5396 bytes
SHA-256: 105d96e4712dc349e6e4ecfcb04f6bd9786e678487349ea9c6c985a8432c15b1
font_01_sfnt_off0000ce7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE7E 11128 bytes
SHA-256: 28b4396a9b7bcc585d0940cc3c16b940966058eb1fa59889f803e366378d6465

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