Malicious PDF — malware analysis report

Static analysis result for SHA-256 478ec646119548f7…

MALICIOUS

PDF

79.0 KB Created: 2021-04-19 03:49:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 68cf8f69ba95431b6a09d2ea7b7c06af SHA-1: 191e6a94524356ee1cc8ceebfe81711c62f94376 SHA-256: 478ec646119548f71fa4bc3f7b89619a6cd7ad14477ba04f6d907fb52fa775f4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/strik?utm_term=what+is+physics+grade+11 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387036/normal_60220f214659f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416493/normal_601f46094696f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481406/normal_60050bb078f26.pdfIn PDF document text
    • http://persequenteamsohbet.com/appium_android_example_java4frmk.pdfIn PDF document text
    • http://maewallace.com/wizabobezizokajopedunicqubs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://paporoj.rf.gd/14102274632.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/vifaxefoma.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/growth_mindset_worksheets_3rd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/81225360248.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/51485403829.pdfIn PDF document text
    • https://s3.amazonaws.com/pusori/737526135.pdfIn PDF document text
    • http://diduzivil.epizy.com/bofukojoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ed199b4-610a-4a28-b2c4-ba6c175ded94/tuxuwatowepenamafugizasi.pdfIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/divisoria_market_guide.pdfIn PDF document text
    • http://kuxoxulid.epizy.com/dufimitorikawijagitovuxan.pdfIn PDF document text
    • http://robefopatobut.epizy.com/application_letter_sample_format.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee9500f7-4569-456d-8510-530732495db7/tuwig.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/mr_bechara_movie_480p.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/51482084695.pdfIn PDF document text
    • https://s3.amazonaws.com/gogoxowiniza/30100823851.pdfIn PDF document text
    • https://s3.amazonaws.com/zabevog/data_structures_cheat_sheet_for_interview.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4BB 5472 bytes
SHA-256: 6efbceb700eefe5bb5f9c1d75d0c187e1f001972c2f32de88a24a4ef15d5f151
font_01_sfnt_off00010769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10769 11648 bytes
SHA-256: 941599930ffcc0a1e960b2ab59dc735b253e51be3ec7e1fd86121c057c1950b5

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