Malicious PDF — malware analysis report

Static analysis result for SHA-256 04d80a26ce9d6e89…

MALICIOUS

PDF

48.3 KB Created: 2020-11-09 02:35:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 5801c2b2cc53e681704c026b1ac67aaf SHA-1: 5563a402f00397f2b44b711e8837ff3b4c9592d1 SHA-256: 04d80a26ce9d6e89ca02d86ed36e47dc63e96f9df9c297896b5402c98d41c52b
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://traffking.ru/123?keyword=bathing+self+care+deficit+care+plan In PDF document text
    • https://cdn-cms.f-static.net/uploads/4421782/normal_5fa61fb4ef825.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369343/normal_5f8d16e7cce18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369138/normal_5f8c1bb08a38d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372104/normal_5f90670710cc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471474/normal_5fa5781d7bf1d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390995/normal_5f9d15453057e.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/518bbb5e-4e7b-47d1-ab70-51030acfeca2/dabamojorozozoxugumul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c7e7e63-da4a-4208-bb07-b43f744cdb7c/margaret_thatcher_biografia_corta.pdfIn PDF document text
    • https://fovodifikade.files.wordpress.com/2020/11/34348140425.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/337e7bd5-02ab-4973-ab35-f23d15029175/landscape_with_saint_john_on_patmos.pdfIn PDF document text
    • https://rejepepari.files.wordpress.com/2020/11/36437500418.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a898f27f-9174-4c56-ade9-4debca48ecf5/unblocked_earn_to_die_2012_part_2.pdfIn PDF document text
    • https://vuresorebe.files.wordpress.com/2020/11/boduduz.pdfIn PDF document text
    • https://s3.amazonaws.com/leguvefu/riesgos_de_los_alimentos_transgenicos.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/kalasibavuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/589c935b-8d28-4b8f-93df-15365a84270e/biwifeta.pdfIn PDF document text
    • https://bifumox.files.wordpress.com/2020/11/car_transfer_letter_karachi.pdfIn PDF document text
    • https://zawilek.files.wordpress.com/2020/11/marshall_avt50_manual.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_off00007e96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E96 5468 bytes
SHA-256: 825d628857d30df0670dcca5b7b415d8c2922a5623517321a0f0135714417a9c
font_01_sfnt_off0000912f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x912F 10380 bytes
SHA-256: 7e987237a7897fa6195c83499756c4976fea38af2e1b90b991257eee201e9f41

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