Malicious PDF — malware analysis report

Static analysis result for SHA-256 301337e2d3ac709b…

MALICIOUS

PDF

49.4 KB Created: 2020-10-25 16:48:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 17262ce2b78fc2d125672e6634a6ee6b SHA-1: dfee9cb653403f4d4e95f73e677bf5b26d11989a SHA-256: 301337e2d3ac709bded4ebbe0c93cac418f147962cec423be2812104417e1a4a
94 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 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 1.0000

Heuristics 3

  • 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://ttraff.cc/pify?keyword=lebesgue+stieltjes+integral+pdf In PDF document text
    • https://kilejotiwig.weebly.com/uploads/1/3/1/4/131406519/a9278cdf128656.pdfIn PDF document text
    • https://luwobidope.weebly.com/uploads/1/3/0/8/130814225/mawodokukuroxot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367617/normal_5f8d29166c9ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369494/normal_5f8aa12614036.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/17eb8cff-c693-465f-891e-95529f4bf6df/29108551892.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21e277ca-2dda-4d70-8f96-625e25a80eca/zinaniwuxijufipejifirela.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bed18900-fb4d-4c82-9658-e9ba3df66953/karn_scion_of_urza_price.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/784a9dc9-6194-49ce-af4c-e5da7b41364c/94545081487.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d399f944-801c-41da-8379-dd84a70931f6/sapowefoxaneterogeludilat.pdfIn PDF document text
    • https://s3.amazonaws.com/dazutun/1278598395.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/buzanegibinakakegitowo.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/kinolevojav.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/audiometria_procedimiento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2856/8471/files/78802574263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2951/0324/files/53432151005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0110/1984/files/interior_design_resume_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6344/3101/files/mufiw.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/analysis_of_algorithms_book.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/jasuve.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/personality_adjectives_en_ingles_y_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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6714 5368 bytes
SHA-256: dfb8fba3c8cae2e569cf96ece82a63248985bf605fdcab193161e0cd35c43ffa
font_01_sfnt_off0000795e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x795E 11792 bytes
SHA-256: c2dc8da97d2718a69633a07440a8c33de125927fb264282845824358c5a38547
font_02_sfnt_off0000a1d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1D9 16308 bytes
SHA-256: f8c32d88b499c12e5b28d63c90b79db4ee0d1ea4b3885fde9b10d77798a782be

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