Malicious PDF — malware analysis report

Static analysis result for SHA-256 063989f4ac5541eb…

MALICIOUS

PDF

77.3 KB Created: 2021-02-28 07:23:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 572f948c3c246c24bff93ead2684a5d5 SHA-1: d23de5edd106354181843e6ba9a24a18f1e29e90 SHA-256: 063989f4ac5541ebf67cbca9e647a7388e258b8f44d87899d4d54e199ee89117
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website associated with phishing. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/wix?keyword=game+center+google+sites PDF link annotation
    • http://biteroz.iblogger.org/32590675452.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473656/normal_602fd8ec0fa00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449009/normal_5fec69b6b0e22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417220/normal_6025fa253c688.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498994/normal_6001cfa40e9e3.pdfIn PDF document text
    • http://vsspb.ru/cloud_atlas_quotes_our_lives_are_notw20ew.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454286/normal_60096ad2e68b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444351/normal_5ff8adc9d543c.pdfIn PDF document text
    • https://gujejedadun.weebly.com/uploads/1/3/1/3/131398181/5346959.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369908/normal_602a1f172bb34.pdfIn PDF document text
    • https://wupupuredizuso.weebly.com/uploads/1/3/4/8/134894828/e0c04156.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416802/normal_602fb1d02d81f.pdfIn PDF document text
    • https://godowipi.weebly.com/uploads/1/3/4/5/134520373/6058725.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kubuleg.rf.gd/51971876967.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/horseman_challenge_guide_rdr2.pdfIn PDF document text
    • https://s3.amazonaws.com/kisimujuk/christie_power_tools.pdfIn PDF document text
    • http://tosuniwenalob.epizy.com/figarobepekuvul.pdfIn PDF document text
    • http://riwexakax.epizy.com/5483563755.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/328674277.pdfIn PDF document text
    • http://gasigigi.rf.gd/golukix.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_off0000f28a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF28A 5148 bytes
SHA-256: d38b588904d68644b644d05e31c4dec55d2e6a0a584f969c960a33b91473bb7a
font_01_sfnt_off000103f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103F9 10640 bytes
SHA-256: 2cb2b43375ecf1cd178d1bfca6c741feedb5fcf1cd0d363c65a9b7f1972869c4

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