Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afba008a9f85de9…

MALICIOUS

PDF

50.6 KB Created: 2020-10-19 08:49:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: c0d2446ef83830badc801e7e9d9e7321 SHA-1: 7bb48db72c194ff16514c6e7020142ec43f3b21a SHA-256: 4afba008a9f85de9c828ae574150dabb223109832b48ea0c9a045c653b262b17
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/strik?keyword=percy+jackson+movie+series+free+down In PDF document text
    • https://kuromazu.weebly.com/uploads/1/3/2/6/132695519/afe7c255f8dd3c.pdfIn PDF document text
    • https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/tubabubexevuwefobate.pdfIn PDF document text
    • https://jawowigo.weebly.com/uploads/1/3/0/7/130774982/0443e.pdfIn PDF document text
    • https://vodipewelo.weebly.com/uploads/1/3/1/6/131637384/71e9878.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366666/normal_5f871bacea41c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375907/normal_5f8a62293c62a.pdfIn PDF document text
    • https://gekeforoka.weebly.com/uploads/1/3/1/4/131438206/joniwamekalo-gezobedulobabaf-ratura.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/5401885.pdfIn PDF document text
    • https://lagukekejase.weebly.com/uploads/1/3/0/8/130815031/xamozo-siwud.pdfIn PDF document text
    • https://jezaxegare.weebly.com/uploads/1/3/1/3/131380636/21368b57.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/68feb10e-d665-418a-82d0-c55e08d7e62c/60865585080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/5940/7765/files/radford_analysing_english_sentences.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8223/9137/files/dart_board_set_up_measurements.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/0487/6727/files/download_oxford_collocations_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/2089/0524/files/dozugakuzigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/g-eazy_when_its_dark_out_zip_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d56dd29-205f-49bf-b545-2837f4d0a334/78386428978.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18e51ea7-e1cc-4ffd-8a97-cc0ce4d40ad7/bejaneteriwo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18cdb5b5-64a8-465a-8a12-9db03ebbd3c6/71911526088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d330d2df-c454-4452-9014-9acf7bfbd2e2/rokufabobadifenenakep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18c5ae9f-4459-4a14-8dc5-32f5ac2acb1a/Bluttest_fr_Zink.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_off0000863c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x863C 5532 bytes
SHA-256: a6c640be98e01b40840f612871cc6339ce426c4241aad3e54901fb7cdb589eec
font_01_sfnt_off00009910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9910 10572 bytes
SHA-256: 7a3ed354dec58ba714d2abaeb62b114dc938a527ca4372af895980192442aaa6

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