Malicious PDF — malware analysis report

Static analysis result for SHA-256 352ed6570a8ad67b…

MALICIOUS

PDF

61.2 KB Created: 2020-12-18 17:57:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 57b3009975b0e42240f8892f3a05a124 SHA-1: d287226f731565bbdcec2c0222cf1d509ecc8576 SHA-256: 352ed6570a8ad67b2d982f3711c00cfc629c3089851de5f9bd8fa0fe1cefcbba
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. No scripts were extracted, but the PDF structure and embedded URI suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffnew.ru/strik?utm_term=monochromatic+painting+ideas PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4451212/normal_5fa2a902531f2.pdfIn PDF document text
    • https://wojegapemepuwa.weebly.com/uploads/1/3/4/0/134096127/jubajutaduwugina.pdfIn PDF document text
    • https://gadolelexuzited.weebly.com/uploads/1/3/4/4/134486477/luwiwazefuz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369633/normal_5fb42d3a943bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379961/normal_5fbc8dd84536d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc68a6da8793968642f1420/t/5fc928f36a9a393da24b5a9d/1607018744231/download_drive_in_idle_tapper_game_mod_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a6688f5-c439-4752-9b1f-91fe9a5c88fa/73651918256.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9b32646a-0a59-4fe9-970b-fdd2f72a00bb/71567124512.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/82304846011.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd4de1bc08de7cf0659d48/1606241762107/lixilofuxuganipowapuk.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/atlas_of_foraminifera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1988d705-9ae3-46b6-8a84-ca120fada8c0/usmc_counseling_worksheet_download.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_off0000b483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB483 5460 bytes
SHA-256: 926bbab0441281e1ce610587a379c7974e0c19095037e2a238833fcf58d2e070
font_01_sfnt_off0000c6ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6EF 9780 bytes
SHA-256: 104c0750bf0744eafeeb8c951302faad56617c0b42b0bfbf1b61753d9dda8f56

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