Malicious PDF — malware analysis report

Static analysis result for SHA-256 839913fed91eb032…

MALICIOUS

PDF

60.5 KB Created: 2020-12-15 05:19:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f32c0c4a2985c967a04a77393846b4db SHA-1: 3ba733084d0b07846840535ce412601a50233869 SHA-256: 839913fed91eb0329db12a2ddd943cbf422b7cb73da10629f790b67c57e30aa0
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, identified by heuristics and ClamAV as malicious. The document body, though heavily obfuscated, appears to be a lure related to a detergent safety data sheet, suggesting a phishing or social engineering attempt to drive users to the malicious site.

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://trafffi.ru/123?utm_term=apex+manual+detergent+sicherheitsdatenblatt PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc67f67ab79f442f2500a09/t/5fcf5833caa95a391e6bb6fd/1607424055364/7_mages_walkthrough_slave_ship.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc13b47c14dfd36fef3b64a/t/5fc42211e6d49a06bb14860c/1606689298988/cuisinart_extreme_brew_charcoal_filter.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5072ec14dfd36fe0c117c/t/5fcd46dbe43f2b00a8b60ccd/1607288541492/37202002237.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4afe2d02-e286-4f5c-a776-ce1836e2f8c6/25101869197.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/piwopazilexizekole.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcebc5ef127c57ce1515436/t/5fd176cc880fa23343c9e9a4/1607562962078/music_lines_and_spaces_bass_clef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf58ee1e-6c91-47ca-b6d6-19c13fc3c7e5/31772960239.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5936eaffbf90a660a4a03/t/5fd680a4df2f0204c23b5351/1607893163571/novisedetomonadu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0de9c5bcb0228a2825217/t/5fce15227ae85b53b2b964f7/1607341346527/60703096404.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/cetoacidosis_diabetica_tratamiento.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/g_shock_ga_100_manual_time_set.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf705edabee7b4406e0a6/1606219526486/lacrosse_for_dummies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/081e99c5-fd9e-4016-8c64-d3c4b4315515/auditor_general_report_2018_rwanda.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e2c57848ba205d187778/t/5fc3d2bd18e72e5fdb4cee6f/1606668989286/descargar_tetris_ds_rom_espaol.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_off0000afe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFE6 5684 bytes
SHA-256: 4c42df1852df7cf3da375f6eeec0f501e36865562a7636872a82ef89622313ef
font_01_sfnt_off0000c30f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC30F 10028 bytes
SHA-256: e5c250628b9d3e46cabac37fb39dfe9cbbdcc30bcd64fa684948b3355febc0ea

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