Malicious PDF — malware analysis report

Static analysis result for SHA-256 c126f298057321ec…

MALICIOUS

PDF

65.2 KB Created: 2020-10-25 05:00:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 6947c86c6fa7e3d1475e891c9e32f33c SHA-1: a7be5469e5eb7460325ec8e7d1d6431174875ebe SHA-256: c126f298057321ecbfab9a0e55deeec48ec18c491ab8c4ea239f25a30d8066de
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://ttraff.me/123?keyword=skywatch+tv+guide+nz In PDF document text
    • https://fuvipizewovotat.weebly.com/uploads/1/3/1/0/131069886/jokufazi-molevotawulisas.pdfIn PDF document text
    • https://wesujugureju.weebly.com/uploads/1/3/0/8/130874517/01b94de2df0ca7b.pdfIn PDF document text
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/1388095.pdfIn PDF document text
    • https://nudopimiga.weebly.com/uploads/1/3/1/0/131070212/murozugub-sepogejosape.pdfIn PDF document text
    • https://turomanusogagi.weebly.com/uploads/1/3/1/4/131453559/8566835.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/d431096a-b286-477d-baf0-8fe9a4a0a622/kokiwurovafatixisisa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58597d69-cf61-4888-b9e8-d1c970a667d3/54544196603.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad6f232c-a830-41da-bea5-ecec9de02959/nedemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9282/6517/files/search_toolbar_android_kotlin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/1257/5391/files/animal_crossing_new_leaf_bug_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0095/7608/files/google_assistant_launcher_apk_download_for_lollipop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8400/8603/files/sivakawilepoxonusudivimal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6975/7850/files/forex_trading_manual_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9612/1252/files/8754220248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/7622/6724/files/gefifitatajekedado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/0284/6110/files/the_cyclists_training_bible.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_off0000bd9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD9F 5368 bytes
SHA-256: fb2a38683a15d40fc8ff3ed0abfcfc97549cf2f9dde6c8bc28c85b4d37009c0b
font_01_sfnt_off0000d00c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD00C 11832 bytes
SHA-256: a35c3d17885597728ae962e357a1090e3f2a80ab8ba9ecdf694a7408cf914287

Open this report in the interactive analyzer, or submit your own file for analysis.