Malicious PDF — malware analysis report

Static analysis result for SHA-256 113594350ef8f1e1…

MALICIOUS

PDF

47.9 KB Created: 2020-10-30 16:29:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 6a7e844a25e45ba8533bc90877a70160 SHA-1: deb728eb2ad1d5e7772a4971f14f499f8003f11a SHA-256: 113594350ef8f1e174a1b6442171dbfb2ed5b3c6c6817faac7a9a554dc35b0ca
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=ars+goetia+pdf+espa%25C3%25B1ol+descargar In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368487/normal_5f905a113bf2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365570/normal_5f8d8c2ba4539.pdfIn PDF document text
    • https://waxovidimised.weebly.com/uploads/1/3/4/4/134446407/7016861.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367911/normal_5f8b97f022984.pdfIn PDF document text
    • https://pivozedotafi.weebly.com/uploads/1/3/1/0/131070355/e1f2b21.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/67be70ae-34a4-43db-830a-da82ddbed2e6/camera_nikon_coolpix_l820_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/84182112322.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/30438f72-3c28-4939-ba16-ab1c3cd81625/mere_ghar_aayi_ek_nanhi_pari_remix_m.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd53640b-ab9d-43d5-879d-e1db8be0eb30/what_is_capa_certified.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/indian_navy_in_hindi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f580a99-1c40-41ee-a948-2a337c7f52f1/90200678556.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6780/8190/files/soxopeku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ee88487-6918-4f58-9748-6dc5aabb426d/wufolotuma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3b70944-edbf-4058-bc24-5dc88705cf5e/2024988279.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82c0802a-3269-4456-afb5-6697d107e4c0/englishforeveryone.org_answer_key_su.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_off00007806.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7806 5524 bytes
SHA-256: 8b27002a927ec5335baf4df876fc8a0f3757afd47a16941f6f2c92e9eac228cb
font_01_sfnt_off00008aa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA2 11568 bytes
SHA-256: 38d83888c21af0011d395ac67f594f421e59e4b74899989844b89219b4f53424

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