Malicious PDF — malware analysis report

Static analysis result for SHA-256 349c89a7a0e833d5…

MALICIOUS

PDF

71.6 KB Created: 2021-01-15 14:15:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: d3a8d5469fa5f477203e644b44e9c6db SHA-1: 17d89c9b36679dd5816e6d256ce821cb208759e1 SHA-256: 349c89a7a0e833d5bc8905a24f64921302a2d64b6850a15e5a061ed5ea09984b
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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/aws?utm_term=black+dog+guitar+pdf In PDF document text
    • https://cdn.sqhk.co/sugezigo/ibia3Dn/mod_game_zombie_idle_defense.pdfIn PDF document text
    • https://cdn.sqhk.co/rawerusiwala/whfidif/89063774722.pdfIn PDF document text
    • https://cdn.sqhk.co/xakelafu/Xe6njey/strike_hit_run_the_office.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447253/normal_5fcd589759bb0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385647/normal_5fdab5f830160.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495858/normal_5faa4acb97ecc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447460/normal_5fedfeae7fa30.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/gewisetug/printf_date_format_bash.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/bardoli_today_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/bajuse/11592090538.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/alphabetical_list_of_animals.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/vimejamilobadedaje.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/nervous_system_worksheet_quizlet.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_off0000db17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB17 5256 bytes
SHA-256: f8a4e2627db5f57bd750d970e2eded0c90690ae79a25890f5afcc10ca7321af7
font_01_sfnt_off0000ed0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED0F 10816 bytes
SHA-256: 2772c4a2566245986a3fa83fb38c5bb5074e1db5ee94dfbfb4b16e5cd2375829

Open this report in the interactive analyzer, or submit your own file for analysis.