Malicious PDF — malware analysis report

Static analysis result for SHA-256 05459f2ca0c09d31…

MALICIOUS

PDF

89.4 KB Created: 2021-03-26 08:02:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ddd882ee46d4a752ce3e296f45002056 SHA-1: 96284fb5451b1ba038f978e0ac961517398b7b5c SHA-256: 05459f2ca0c09d31cc87e70e62e23e661786a4b8b11296b76946635112f920e0
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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=computer+hardware+10+examples PDF link annotation
    • http://7gusevshop.space/wendys_pub_fries_nutrition_factsniktr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492286/normal_60568fb04a15f.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/where_can_i_donate_used_furniture_in_chicago.pdfIn PDF document text
    • http://kurudapod.medianewsonline.com/nizizopokimivobomopi.pdfIn PDF document text
    • http://yesnutural.space/zukepigilasaxakejuguwiloulej3.pdfIn PDF document text
    • http://rakapugijumub.sportsontheweb.net/tuxosiza.pdfIn PDF document text
    • http://bowenaf.22web.org/kataxusuzikekema.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/12263755913.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409420/normal_5ff6358edbac9.pdfIn PDF document text
    • 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/tugafebip/xuxilavotonivav.pdfIn PDF document text
    • http://pimoxonevuwewax.atwebpages.com/australia_passport_application.pdfIn PDF document text
    • http://mujebik.atwebpages.com/anger_management_activities_for_adults.pdfIn PDF document text
    • http://jitawidavez.atwebpages.com/wuxeloruzefu.pdfIn PDF document text
    • https://s3.amazonaws.com/gasodamuza/22364761263.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/las_cronicas_de_narnia_4_pelicula_completa_en_espaol_latino_gratis.pdfIn PDF document text
    • http://gototura.myartsonline.com/rufowila.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/2139803002.pdfIn PDF document text
    • http://dubaduvuk.rf.gd/nuvude.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_off000113ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113AC 5304 bytes
SHA-256: 8457a4be5b528a6ebc5e086c775c95a7747053ba699fbc084cc01001e44c0f84
font_01_sfnt_off000125d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125D0 10744 bytes
SHA-256: 66a75bfdfb8916c2af1b5de0b2dbfb607c8815a4a22178fc6e37686f416da8d7
font_02_sfnt_off00014a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A7D 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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