Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd48ce451256c97…

MALICIOUS

PDF

66.0 KB Created: 2020-12-23 06:48:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4e3bd733cf1070c3fce3b6aa8f25f8cb SHA-1: febd26758965e821aa1c675819f91e908f6a18b2 SHA-256: 9dd48ce451256c972ab9449827a76fd821ae7dea09575f7df471d60eba645d57
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • 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://gettraff.ru/123?utm_term=vinyl+decal+pricing+calculator In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/ginutu/singham_song_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/mercedes_benz_a_class_2018_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e246f0e0-7f14-49b4-841e-bdd8a04c739f/dabelupexesuloja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b18288f4-fffd-4288-84f2-c82c95fd8714/descargar_pokemon_x_para_pc_sin_emul.pdfIn PDF document text
    • https://s3.amazonaws.com/gagotaniwipure/itinerary_format_template.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/guxenujubegabutupaxiluke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bdb80338-53bf-4f9b-b67b-c93388a7e459/42542378017.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/insurgent_movie_fzmovies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8f10e82-f4c3-425b-88de-51123d882636/pegizusavapusi.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/www.my_gmail.com_account_sign_in.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_off0000c446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC446 5132 bytes
SHA-256: 8a907303d50705f7c986be812ad297ab0c4cc9aff0aad72fb2c690204cd8399e
font_01_sfnt_off0000d5d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D6 11164 bytes
SHA-256: 109ca3118ee9a1624079bda6b65c0004f48b3d889264fa8855ca5a70468d8db5

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