Malicious PDF — malware analysis report

Static analysis result for SHA-256 46682f08f326240d…

MALICIOUS

PDF

77.1 KB Created: 2021-06-09 09:05:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: d14f85590f4d32608819a32f49ddae40 SHA-1: 32dd88f46e95a269c28e0d3814b468da66219654 SHA-256: 46682f08f326240d221db2cf5e6564bf14f5c41b046f6a6ea5f482d6dd592b88
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a site offering 'lullaby song for babies to sleep mp3 download'. This is a common lure for phishing or malware delivery. The ML classifier and ClamAV detection strongly indicate malicious intent, and the PDF structure itself contains an external URI pointing to the suspicious domain. No scripts were extracted, but the overall pattern suggests a phishing or malware distribution attempt.

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://ketchas.ru/pbw?utm_term=lullaby+song+for+babies+to+sleep+mp3+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417523/normal_5fce9a96b5b66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470412/normal_6036dc21786e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401711/normal_5ff4b63059161.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390081/normal_6023deb671aa3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412588/normal_5fe786c382b4d.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/71048526-e1cb-4d03-bbb4-e2572b485bb7/tennant_t16_error_codes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1b8f79b-a0ab-4bd0-836f-3ebc7382e961/jisijufemalodoniwuzejovi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6379ec3a-c43a-4e7c-afc6-2b8ba03d2110/guxiv.pdfIn PDF document text
    • http://garigor.pbworks.com/f/laboratory_equipment_and_uses.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a7a0553-9e0c-4aee-af11-1fac54f3ba01/12372871714.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cc6f8fa-295f-465a-a7ea-dafda90395e6/mathematical_logic_questions_and_answers_12th.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/908f6d8d-e818-4085-8a25-0d246115dfcc/70696835958.pdfIn PDF document text
    • http://sisiwovad.pbworks.com/w/file/fetch/144731058/50981741906.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db3ae768-c565-4c82-b09c-36110e81751e/favezezepedalewutaxo.pdfIn PDF document text
    • http://wisarazed.pbworks.com/f/semejinajalonunesat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dadfdca-9da3-4303-a378-f9b280f40894/angelina_tab_tommy_emmanuel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/197740f1-9592-4f7a-a3c9-6c32fc1c66f6/how_to_reset_service_tire_monitor_system_on_2008_chevy_silverado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/169945f5-9d83-4550-b87e-556e20510d12/doctrina_monroe_y_destino_manifiesto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76f7bd14-996a-4d57-8023-79e25a6d82b5/timex_indiglo_wr50m_precio.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f643461-aa42-4484-9d89-ebd141f86363/gugiwusujivetotomux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d481cd62-d17c-434d-aee4-8e2563fc8670/fapegaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5afeef21-4ea4-48e4-b551-739f6321fbcf/77772555326.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_off0000eed9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEED9 5800 bytes
SHA-256: 0fc644437fddbd42b9ff4eb529e46922afd776307816427efb2a6043dc943801
font_01_sfnt_off0001029b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1029B 10552 bytes
SHA-256: f216a9ef06d01f797e990fd4951c5fbb91fe1ee17323e36eefb9699a00bac5fe

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