Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd3321eb49290256…

MALICIOUS

PDF

67.0 KB Created: 2020-12-08 01:17:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 039207ed4c2bc97600ecab155c244eb5 SHA-1: 0ad71610f289f8298579f3b56da58245fc084282 SHA-256: bd3321eb49290256b3e9f256da2a650ee168ac688f1e738db9e3322c3edc4705
96 Risk Score

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://traffset.ru/strik?utm_term=danger+mouse+games+unblocked PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4390996/normal_5fbc16ccb89cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480743/normal_5fae7275571e8.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/84f00969-d35e-4e2d-9ce1-f763490034a4/area_code_757_location.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf53423485235c86bd32a7/1606374211166/matlab_guide_slider_tutorial.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41c7761f-46dc-4912-b5c1-436f306856af/xagenapawudapegukefonixa.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/ginikomow.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c51f8787e8798984abf3/t/5fc649ad18e72e5fdbadac3f/1606830512038/dobubafelajobiver.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/glorious_morning_waterflame_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/57790429105.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/84097436112.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d5de7d4-3e8f-4f79-a30a-dcda8f411745/95418164489.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50e913fd-2dad-483f-8294-d6cbbff9e71e/koguw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/966d49af-689d-412c-af79-a666fa0d40f8/dejulafolifajofepitofera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e336033-9e4d-40ea-a81c-e55c0f7c5dd0/fema_project_worksheet.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_off0000cb59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB59 5464 bytes
SHA-256: 7ad1ebec447757af71d8004ea33f9883ae49dadd1b568626c715eacb5cba4076
font_01_sfnt_off0000ddde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDE 9928 bytes
SHA-256: 1dfe73e241c59f14d4ab46f5cb0486f8eca7a9ddcc6236f934b0d7875f482a59