Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bb184eb932afc9…

MALICIOUS

PDF

269.2 KB Created: 2020-10-17 12:51:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 0490462bb79b9beff563d7ee9d943150 SHA-1: 575ad1d9bf0273f7324459a5a5cbffc41fdf5b4b SHA-256: 72bb184eb932afc9f53d3f5139a18dff440f433bf71b57ebdfa6c3352c767f44
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=cuento+de+peter+pan+en+ingles+pdf In PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/983745.pdfIn PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/sakibugimakizej.pdfIn PDF document text
    • https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/c25f730.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/1d1f8ecc085ca.pdfIn PDF document text
    • https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/vipogum_magufutalud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369506/normal_5f89dd5b7e2c7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371791/normal_5f8a64e35ebc8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370074/normal_5f8aa50683e15.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366947/normal_5f89d6ddb9518.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_5f8804a11e330.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374376/normal_5f8950afb591b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368745/normal_5f89fb568e319.pdfIn PDF document text
    • https://femevidawivuk.weebly.com/uploads/1/3/1/0/131071063/lubajupi.pdfIn PDF document text
    • https://zuparimetusu.weebly.com/uploads/1/3/1/3/131378993/pewonisoja.pdfIn PDF document text
    • https://boguvetasitob.weebly.com/uploads/1/3/1/3/131380850/devugiwofutuvava.pdfIn PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/fizalivide_demotexo_tulekofetitinol_fubivaravavuta.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/1/0496/4902/5188/files/da_2823_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/3413/9546/files/area_code_616_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/9752/5912/files/poxitajelijuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0491/8863/4790/files/task_manager_in_spanish_windows.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5da03450-1820-45c5-917b-1f6ff81004d4/xijatezazovapodokijimo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/143a200c-06dc-4c07-86cf-66cdce997ad4/3065843409.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59860144-8f80-4e21-90fa-18a538acf33d/list_of_positive_affirmations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6db5e7ad-bdec-4641-997d-b938ebc1c1ac/nibisaxivunoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb632243-5465-403b-85a2-577546cc75a7/jotiko.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e596.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E596 5112 bytes
SHA-256: 7da1d71e2072f25c6f4979d0eb717e68b69c1645e6ca734bfb21039b027dbdf2
font_01_sfnt_off0003f702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F702 1712 bytes
SHA-256: 3f0828ce8539d6704c3c5c487418eae6389b94b93c39031e834bee5c0f95218b
font_02_sfnt_off0003ff86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FF86 11524 bytes
SHA-256: ceb5a9367a3d7d14e65e08779bb51d833c1bb36a01b80e2ca8e2e61f1d4f266e

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