Malicious PDF — malware analysis report

Static analysis result for SHA-256 14b96d5930fbf2a1…

MALICIOUS

PDF

74.7 KB Created: 2020-11-27 11:48:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: f38f8925c2981004f073082b286b0210 SHA-1: ecac3f562ddd18d5b4640ac7b3934a94d44e6900 SHA-256: 14b96d5930fbf2a1c7b59bf5678b5bfc3b4af2058ce84b7d7e7d4777151666ee
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL that directs users to a site offering 'job training ppt template', a common lure for phishing attacks. No scripts were extracted, but the overall structure and embedded URL suggest a phishing attempt to compromise users.

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://traffset.ru/aws?utm_term=job+training+ppt+template PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387406/normal_5f8ed7b1aeb90.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5f9fda286e7a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369775/normal_5f932a9da9a8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423462/normal_5fbf5e5b796bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406191/normal_5f952fa7c603f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499622/normal_5fb61da6aba5d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423155/normal_5fa211f85e373.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/jadudusujuje/57217654859.pdfIn PDF document text
    • https://s3.amazonaws.com/sonutopexaramuf/the_hallelujah_diet.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/burr_coffee_grinder_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98ff8445-2e43-48ac-8bb8-141c320e57b0/2b2t_starter_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/credit_basics_note_taking_guide_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/tide_chart_myrtle_beach.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_off0000e9e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9E1 5088 bytes
SHA-256: ff72a7a3f0ea040ebdddd2bae1a85d777b28d86854eeb4af0663523526a4d61c
font_01_sfnt_off0000fb1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB1C 10320 bytes
SHA-256: cd8d560db44c098cf8fa824267648b88d45e28c84c31bfbacead71cc1ff49a08