Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab01b3086da2b354…

MALICIOUS

PDF

74.1 KB Created: 2021-02-27 02:43:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 339ac9b56b1317d457ec27f2df665fb6 SHA-1: 57352046fb0383aa714aecb468a737d178818dc1 SHA-256: ab01b3086da2b3540fbf8c292143782bf337ec2865ac67f1b49c476a59241927
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by multiple heuristics and a machine learning classifier as malicious, specifically identified as a phishing trojan by ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site for data collection or further exploitation. No scripts were extracted, but the presence of the malicious URL and the overall classification strongly indicate a phishing attempt.

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://soxebez.ru/strik?utm_term=recolectar+datos+definicion PDF link annotation
    • http://luxasireku.sportsontheweb.net/40002720062.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374540/normal_60219681c20de.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/Chagddf/rigal.pdfIn PDF document text
    • http://copyrightnotices-form.com/472812295040ihrp.pdfIn PDF document text
    • http://nikaold.site/malibu_600_watt_transformer_manualzsnvz.pdfIn PDF document text
    • https://cdn.sqhk.co/tefazaturar/ashihje/virtual_whiteboard_for_online_teaching_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465147/normal_5fe1d0281ac72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476010/normal_6032922758a6c.pdfIn PDF document text
    • https://cdn.sqhk.co/roziguze/fQjiFHo/fitixamazev.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/wutezigojuxi/athalia_modern_calligraphy_script_free.pdfIn PDF document text
    • https://s3.amazonaws.com/paropabaru/anandam_movie_songs_teluguwap.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/xubulavozavavexeva.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/escape_room_game_answers_level_130.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_off0000e3a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3A6 5020 bytes
SHA-256: 7e6503ab7c7ea746b631230aeec569f7de2698a6c75f51527f4e8ba43f08b49c
font_01_sfnt_off0000f4ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CA 11496 bytes
SHA-256: 572fe79ebc32f27d190b136d611da9590bea199c5e8b2d95ad82f087520a45aa

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