Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff0faa24dc2c317f…

MALICIOUS

PDF

37.2 KB Created: 2020-10-30 07:10:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 68c1b02bc4b7bddc11992773ba571fa2 SHA-1: c7b6c29cb70d9d1afc10bf0ae9bc7f42c33c0f44 SHA-256: ff0faa24dc2c317f7643b1ac169f102abea735c0e554a1e357e826d5d3b55a69
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://ggtraff.ru/pify?keyword=bro+code+barney+stinson+pdf+espa%25C3%25B1ol In PDF document text
    • https://towetebofipu.weebly.com/uploads/1/3/1/4/131437669/fizasolunajik.pdfIn PDF document text
    • https://tugajepefur.weebly.com/uploads/1/3/1/4/131453805/a08c6c6b.pdfIn PDF document text
    • https://xufitagetibo.weebly.com/uploads/1/3/4/4/134486135/7c4322760a5295e.pdfIn PDF document text
    • https://derodaju.weebly.com/uploads/1/3/1/6/131606282/0f460.pdfIn PDF document text
    • https://jusujonolixutuw.weebly.com/uploads/1/3/1/3/131379247/watanowib.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/1/0504/4984/2350/files/89286407941.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0175ab3-5546-41ca-8b71-5778c3100c4b/sowukasubakagulisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/4393/2318/files/principio_de_seguridad_juridica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0592/6809/files/61540674017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8076/2023/files/zudoxenafimirok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2938/8194/files/peach_state_credit_union_phone_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8947/0643/files/chemistry_book_class_11_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5025/3984/files/vazimasulufexakor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7394/4731/files/pathophysiology_of_non_hodgkin_lymphoma.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F99 5652 bytes
SHA-256: c408ad01be55d4544c170a07bbc0f0449c3681c136e399066882266edfb27270
font_01_sfnt_off000062a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A0 10412 bytes
SHA-256: ce297c81a5928bab3858cb40adaebaddf0dfe0616c34ef7fde36b03925f72fda

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