Malicious PDF — malware analysis report

Static analysis result for SHA-256 cae9aeed75ed7f03…

MALICIOUS

PDF

48.7 KB Created: 2020-11-03 13:26:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0d86ccf36e01319b7caea05cdba0c9be SHA-1: 92f4f746dfbec69278e6a502174e502a1a30023b SHA-256: cae9aeed75ed7f031e7f8bede2641a99fac3217294afad9497239a477a44eaf0
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/strik?keyword=examples+of+curses+in+the+bible In PDF document text
    • https://cdn-cms.f-static.net/uploads/4416510/normal_5f9c308d23258.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393904/normal_5f932095544a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424683/normal_5f97eadb5d0c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370294/normal_5f9cd771c5cad.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377678/normal_5f8a1a6522bff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365589/normal_5f89e126e64b7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/dukepepafolonolala.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b62c793a-63b3-4447-b814-507d0457455f/dawakivurijapisa.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/sn2_sn1_e2_e1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4238155-e688-4c8f-a56d-f8864ac47d1d/42074211007.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49e8b6dc-9e3e-4bf2-8d01-551fc19ad42d/96048887809.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e57f1c0f-abde-4ba2-8a0f-d5ffec731972/dixijibumusesovujew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c88693a4-e906-4f6c-b8cd-5e96e5b36db1/vofopukaxatifu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6100792-4534-4e81-9d37-0e8b4ea78d05/.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d048733-3d0c-4232-8c67-29cb42c4524f/pireravok.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_off0000639c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x639C 5420 bytes
SHA-256: 6f20210ec1831fd0d89491fa5ae52961fd5de9bca8133d530088832fc744fe76
font_01_sfnt_off000075e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E1 10316 bytes
SHA-256: abb1aaca00348a357492ed8ec08c5f647148b10984eec338084185a0e69b3a9c
font_02_sfnt_off0000992e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x992E 18348 bytes
SHA-256: 59da057f6fa6690ef9dd6c9f0a9844d1efcbc127570647a153d5139ddf722e70

Open this report in the interactive analyzer, or submit your own file for analysis.