Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4da4642a472135d…

MALICIOUS

PDF

124.4 KB Created: 2021-02-10 05:22:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 54a641500dcb17a8ff43b7eac5737be1 SHA-1: 3ee2755257115c8b4c92910c61a035d32f756ca4 SHA-256: a4da4642a472135d8c2aaad9f080833db12872dcd282e6c43ee800e618b3ce7f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing site disguised as a search result. ML classification and ClamAV detection strongly indicate malicious intent, specifically phishing. The PDF structure and embedded URL suggest it's designed to trick users into visiting a malicious domain.

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://druttle.ru/123?utm_term=nose+piercing+near+me PDF link annotation
    • http://micrometerdigital.xyz/radivegopimipa5918.pdfIn PDF document text
    • http://mavito.online/google_chrome_offline_installer_latest_versionjk53e.pdfIn PDF document text
    • https://nawezuto.weebly.com/uploads/1/3/4/5/134595998/riroxusanevigapigisi.pdfIn PDF document text
    • https://kasikijafeke.weebly.com/uploads/1/3/1/4/131406722/11358.pdfIn PDF document text
    • https://zilibadokaji.weebly.com/uploads/1/3/2/6/132680781/lelolozimeponenuta.pdfIn PDF document text
    • http://ionatr.fun/lunubawazojamavamukaliriq1pma.pdfIn PDF document text
    • https://viwobatenujaneg.weebly.com/uploads/1/3/4/4/134444739/c9019c4a.pdfIn PDF document text
    • http://temppicture.xyz/audiovision_pro_mod_apkd9vfn.pdfIn PDF document text
    • https://samojosaletope.weebly.com/uploads/1/3/4/0/134017273/nesuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duxawunofuror.epizy.com/18582915699.pdfIn PDF document text
    • http://budakokubogomax.rf.gd/93379993475.pdfIn PDF document text
    • http://potubavaziripek.epizy.com/pititu.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/moguxobutuluk.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/insert_watermark_in_excel_sheet.pdfIn PDF document text
    • http://jerasopel.epizy.com/nc_dmv_license_test_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jemazejodep/adelaide_show_showbags_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/vidmate_apk_for_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/loxobi.pdfIn PDF document text
    • http://derekage.epizy.com/xafawozetox.pdfIn PDF document text
    • https://s3.amazonaws.com/widetunipet/elite_dangerous_ship_outfitting_guide.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_off0001ac8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AC8E 5188 bytes
SHA-256: adfd6d6a75c32ac7534f7290c8e36bba3adc39c9792cc392b240f7e31c91ae7b
font_01_sfnt_off0001be28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BE28 11340 bytes
SHA-256: 148a34c4ae0cacf20918cc65eb41d0731f14a5eacfca7fe31a2a7cd47b539c4f