Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e90d88a413fcfd9…

MALICIOUS

PDF

69.4 KB Created: 2020-12-24 01:54:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: c98a11f49e4f963da43bd5f5d58e958e SHA-1: 073a6aded7dee0d7fea284b6398e739def442464 SHA-256: 0e90d88a413fcfd9b2220b17b3a6f4ce3d73ad0e9bf7ea0e42f220b8aa069015
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, appears to contain keywords related to sports, suggesting a lure to entice clicks on the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffnew.ru/strik?utm_term=most+free+kick+goals+premier+league+all+time PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369777/normal_5f8861df6522f.pdfIn PDF document text
    • https://cdn.sqhk.co/dekaroku/ieibChf/fozefuvelowibojulodujibam.pdfIn PDF document text
    • https://cdn.sqhk.co/lewivapawo/ijgdYji/raniwegeribawanita.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370057/normal_5f8e7ded4f48c.pdfIn PDF document text
    • https://cdn.sqhk.co/bufutoje/Bwhaxhf/nenenapagekesutalopedamef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fizaxo/cch_chnh_file_b_ngc.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/67844252065.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/peruvuviki.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/jagaxizudep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/558ac3de-ff8c-436c-a48c-4487441444c6/beat_tiles_game.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/8447613205.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_off0000d30b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD30B 5404 bytes
SHA-256: cca6555ec81ceecbcab74e1bfd3f7aa67f57a62f76eed4893bd8a045cb223541
font_01_sfnt_off0000e572.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE572 10248 bytes
SHA-256: 417f6b5dbe65f98060a8dac2e581a0f14d475f88a79351db7f71b461c95f7fb1

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