Malicious PDF — malware analysis report

Static analysis result for SHA-256 06f9559267b3f8c1…

MALICIOUS

PDF

54.5 KB Created: 2020-10-31 04:58:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f08b66f7f601c5f96ef88cda77622b2b SHA-1: dacb4ee0a7f1c92d0bb3bf5fa77eb6a1ff9c3637 SHA-256: 06f9559267b3f8c18e868f2fde55c7de4aefb867720a1933e62f10dd7106e728
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://gettraff.ru/123?keyword=marching+band+whistle+commands In PDF document text
    • https://cdn-cms.f-static.net/uploads/4402964/normal_5f9b7dacf209d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387235/normal_5f94d5e351e2c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/8696/8480/files/28182680735.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/dietary_reference_intakes_for_calcium_and_vitamin_d_2011.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea042418-e40b-4ed7-b259-72ba2274a1c5/the_karate_kid_full_movie_in_hindi_f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/7131/5361/files/loreal_brass_banisher_shampoo.pdfIn PDF document text
    • https://s3.amazonaws.com/jevuxozazebazug/celestron_super_polaris_c8_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/xugapekesufibevite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9045/3703/files/matadexitivalolevapuvoto.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/malaria_parasite_count.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_off0000959b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x959B 5588 bytes
SHA-256: 9c66e755903d4d00cb299b6125627261f91fe749e0790d7f98bf673a61d4f35d
font_01_sfnt_off0000a88a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA88A 10924 bytes
SHA-256: e53ef9423db1fab31215100d795dfc3f7ecec61a84ffea3985ec5b66de8c2bb5

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