Malicious PDF — malware analysis report

Static analysis result for SHA-256 652f810f9c01ab9e…

MALICIOUS

PDF

61.7 KB Created: 2020-11-17 04:19:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2d65544fbca966c143d801a3b482717 SHA-1: 90aa14828aec18dab87269e2b7fe2776499fcf5f SHA-256: 652f810f9c01ab9e8f8494996ad484a0968176004e69a218ef94af3f2911c575
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that impersonates a government driver's license renewal service, indicating a phishing attempt. ML classifiers and ClamAV detections confirm the malicious nature of the file. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to a malicious site for credential harvesting or further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://traffking.ru/123?utm_term=dol.wa.gov+driver+license+renewal
    • https://cdn-cms.f-static.net/uploads/4374978/normal_5f8da96ff0101.pdf
    • https://cdn-cms.f-static.net/uploads/4403404/normal_5fad707138332.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/lorifawuvawot/vegonetexo.pdf
    • https://s3.amazonaws.com/lixuduwonifa/zemepepi.pdf
    • https://s3.amazonaws.com/sugaguxagu/kalejupeno.pdf
    • https://s3.amazonaws.com/sugaguxagu/foxugadejiwugezol.pdf
    • https://s3.amazonaws.com/zetare/pamawoxonijabex.pdf
    • https://s3.amazonaws.com/sanekufiwumafo/85028126692.pdf
    • https://s3.amazonaws.com/mamibis/golden_lasso_minecraft_pe.pdf
    • https://uploads.strikinglycdn.com/files/c9b3ef94-fd5a-4c98-9f22-08583a9518ee/nuride.pdf
    • https://s3.amazonaws.com/bidurudilidujug/frisco_hills_homes.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b633.bin
77eaba76b613f398226123f5745c704050cc8f916ffbbbb8fba01b38efeeaf23		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB633 5292 bytes
font_01_sfnt_off0000c861.bin
011376c7d1f176d02ac3d37df1dbf3ceaeab1495e43a7ba82d3d0531dddc37c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC861 9824 bytes

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