Malicious PDF — malware analysis report

Static analysis result for SHA-256 e42078c7904f8540…

MALICIOUS

PDF

70.8 KB Created: 2020-12-28 10:40:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: e7ce57007e8e3c523ca472d17510dbdb SHA-1: 14056e4f306fa63d0e1018e14955c87d66ac976b SHA-256: e42078c7904f8540994026db473aa8a21664e4e38c129b5e8b7d0cf180983dc6
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://traffking.ru/123?utm_term=what+is+the+human+condition+definition PDF link annotation
    • https://cdn.sqhk.co/vogoxaginoje/iZjj5Ej/best_voice_recorder_apps_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/moviferu/ibMktxF/mosukiwewab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369926/normal_5f9912a442e40.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480756/normal_5fcecf2784aba.pdfIn PDF document text
    • https://cdn.sqhk.co/lelogusobade/8irgghj/76080723146.pdfIn PDF document text
    • https://cdn.sqhk.co/pixisuja/atbKiig/fowuboj.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/3b551c63-ad09-4e8d-ba4c-04a00a02d9c4/urban_meyer_book_above_the_line.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e805ac4b-87b2-4d3f-8710-404f4b4bf415/42343563874.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ed48eb9-2c8a-49ff-8797-e21d6ae08d73/sports_and_exercise_nutrition_4th_ed.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/6845900386.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20eba09d-ee7e-4b27-9248-7ce46aa69a61/pp_pizza_telefono.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37448a05-7fe3-488d-b057-35f9fd4328cc/lemobatif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38c5b837-118b-4d36-8a96-64e31ced0753/tidijejafamelof.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_off0000d89e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89E 5144 bytes
SHA-256: ffced83aaf8712504c74e7b1acbbb4328aa64a5629d8a6a21d6c05ef71edcafd
font_01_sfnt_off0000ea0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA0B 10524 bytes
SHA-256: 3469fd1b8c6efdfc202d8115a7b313a7b53d1b97fbd65cc07c86bf8c944535b6