Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ee667fb5f0acb3a…

MALICIOUS

PDF

40.5 KB Created: 2020-10-25 20:24:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-18
MD5: e50622f7c14ebfd32ed7475b9237cf92 SHA-1: a150d4f18ccecf7d58597b4bb1d28691ee276b9f SHA-256: 0ee667fb5f0acb3aceaf092543142b4f968a1d71f7fb94e421979262443fde4c
134 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.
  • 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://ttraff.me/123?keyword=courtesy+call+letter+to+the+mayor+pdf In PDF document text
    • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/2911433.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/394125.pdfIn PDF document text
    • https://vedabigejiko.weebly.com/uploads/1/3/1/4/131438046/judabazamasa.pdfIn PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/9ab65b04f6b.pdfIn PDF document text
    • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/3946656.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368759/normal_5f93b804ac945.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f870f87b77cc.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/vabedafozo/kusewagawajedegonodoroxuv.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/lalat_buah_bactrocera_dorsalis.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/toyota_auris_2013_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/68500474932.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/pasetafizakevebopojitet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0878/9150/files/fifa_14_mod_commentary_download_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7994/1278/files/65760697785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3137/9619/files/94774365832.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c9becf4-fde9-4c99-83dc-cbf9585a2d7b/97829076516.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9cf97556-137d-4d9f-a202-abc74b873be2/gobudorugujinisimupamam.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/76467315667.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/29954112133.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_off00005e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E70 5404 bytes
SHA-256: 442cb500e2e9348d027d5dd151a4487af304ce88a3eba53885214c45ed6dcdd7
font_01_sfnt_off000070b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B7 10776 bytes
SHA-256: 7733613f20bd2aa35321aa78f86095ed5421970fe91b9bc37a2f23ce4e9b6955

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