Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7f9ac7fafe45752…

MALICIOUS

PDF

64.9 KB Created: 2020-12-01 18:59:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: ba33c939844300ee462a238427d85e49 SHA-1: d9212aa1d1a3a746e49d1e1270beeb75c00c99ba SHA-256: f7f9ac7fafe457520ed7e76b9b8f7f9cd3b864687b7627da6cabea3765a1c560
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-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://trafffe.ru/strik?utm_term=marshfield+youth+sports PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369491/normal_5f9bb9f4954dc.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/8dd4ee33-aba0-4fe1-848d-c424422f05e1/demons_run_atv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66ba5777-aca4-4ab6-85c5-da1472257d8d/asset_inventory_management_excel_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/629b86d8-245b-4550-80ad-c4094e4e2718/rutewezoduvirizulizuta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cde1b036-a532-4fef-8f4e-47abe039a8b8/91768720385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df8842f8-2968-4296-a326-4eea9c8fa80a/maxumezisigawu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9735719-2ae2-4f69-a974-892c5d7ade2a/dojegokag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04f4aa78-772d-477c-85c3-b1bfc28c55b5/fundamentals_of_geomorphology_4th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96fc2471-4ced-423b-918e-d02cf029834d/93714425691.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3dfa11ed-b5e2-4cb2-bd33-3ba753731cce/the_legend_of_maula_jatt_movie.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/542ff429-449f-44c7-b996-b815a7cb1cad/7276286385.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40d64071-5866-462b-8b55-b568f867de38/wofesip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e150999-2638-446a-a304-c28ac8723a2c/wufasifopaxetejavak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e75b0f2f-1ec2-4ff7-9441-4b5049a1b47e/neale_donald_walsch_knjige.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_off0000bfae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFAE 5236 bytes
SHA-256: e1a63bb62a7b58ba72ec38209080eecd2270202cb3a85699b598a7bec2f9058f
font_01_sfnt_off0000d18d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD18D 12044 bytes
SHA-256: 220df3557a9b76232e0f9e28a558ec6347f53f6aeb2e2920de9804c2e0084b28