Malicious PDF — malware analysis report

Static analysis result for SHA-256 e12f9d31f5aa806e…

MALICIOUS

PDF

71.2 KB Created: 2020-12-05 23:26:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 702cf35fae523a1f24c430a7a9818997 SHA-1: 18531fe85b9607f08db13c8dda650117757628cc SHA-256: e12f9d31f5aa806e6561345ddd712f753b4ad60fe9e36b59e13cccff94efdaf4
96 Risk Score

Malware Insights

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

The PDF file contains a URL that is flagged as malicious and is presented within the document body, suggesting a phishing or social engineering attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic point towards a phishing lure.

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://traffset.ru/123?utm_term=hosa+competitive+events PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nilafafakem/apostles_creed_bible_study.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc06ef3116eb00e3c49974f/t/5fc13f6c18e72e5fdb04f214/1606500205122/earthdawn_4th_edition_companion.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/30116225881.pdfIn PDF document text
    • https://s3.amazonaws.com/dukavunivifa/zotitegusesefejuvozexar.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d4086b97992eb55bb7f9/t/5fc4da2d7acac6192a597d78/1606736429288/bleach_vs_naruto_3.2_unblocked_weebly.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc37c6992c50b1a1e87d9cd/t/5fc3ec9f9b1ed03538564ae9/1606675616582/1984_lesson_plans.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31e84803-6c1b-4f43-8821-8c27e916f1bf/shiness_the_lightning_kingdom.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5aeac6b97992eb57c3fa1/t/5fc7b35509f4d56e8f8e6f5e/1606923093372/xorapakodigifovelejano.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd158af6f5f91feb7033cc/1606227339928/pawuborevowopaja.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/zibisugogudegivosaze.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf412b474932ca266b772/1606218770648/85360921481.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/descargar_juegos_android_de_dragon_ball.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/ribudujumorozipif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dde6b27e-b836-406e-95a3-08dae5ee243b/55472181772.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_off0000cbcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBCD 4760 bytes
SHA-256: 5d2d94b2f2ff917f04d202193eb25b27449a69e1a9285fb45892393b071d04aa
font_01_sfnt_off0000dbe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE7 11084 bytes
SHA-256: fa49ad1f1672d01090241c86ab4c3f760f9ebb191d19125dc7d313a272a637cb
font_02_sfnt_off000101b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101B6 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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