Malicious PDF — malware analysis report

Static analysis result for SHA-256 db382302ba5d7c3f…

MALICIOUS

PDF

76.8 KB Created: 2021-05-23 03:49:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c21c2ec4d8a059406e5f043044a861e3 SHA-1: 196885569d73e0a207a40035450c939bc84d4ee7 SHA-256: db382302ba5d7c3ff58d31e9179feb3a6a86a7fb3ddc1cd21a441aa932170687
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 0.9998

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://jacksth.ru/strik?utm_term=reading+and+writing+decimals+worksheets+5th+grade PDF link annotation
    • https://zimavilagapiwe.weebly.com/uploads/1/3/2/7/132712623/setis_zupigoz_tupuge_wuvosexirijiv.pdfIn PDF document text
    • https://dofafurubes.weebly.com/uploads/1/3/4/7/134762343/sigolawovege.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491965/normal_60125867d397c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408871/normal_60115189574e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459062/normal_5ffdb331dbf2e.pdfIn PDF document text
    • https://mubajodopiwal.weebly.com/uploads/1/3/1/4/131454521/dusujigamoxu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383449/normal_6030d54c3cc00.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366395/normal_5fe038319e53c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480591/normal_6057c19cb018c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373753/normal_605f6a8f99e2f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/773431c9-3a87-457f-a506-7a4222296a2b/vitamix_food_processor_attachment_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e889e0fa-dcbc-4f6c-893d-cdaa59526789/22825609322.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/11873385940.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/macos_battery_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1815951b-6c77-4232-bae0-cac86ec66f61/tipuwupi.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/novej.pdfIn PDF document text
    • https://s3.amazonaws.com/jeromopelurab/kimunezomese.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/statistical_rethinking_2nd_edition_amazon.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_off0000ee44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE44 5640 bytes
SHA-256: 799126e3aeb25a25bb806108e9ed9f9d745b8c14ce5341ec9ea6d0302bd8f9e2
font_01_sfnt_off00010162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10162 10612 bytes
SHA-256: ddbf7e26306438abb8b8fac25e9af3ba0b1a275287b13e3c4cb9586caac57915

Open this report in the interactive analyzer, or submit your own file for analysis.