Malicious PDF — malware analysis report

Static analysis result for SHA-256 fff2f8b908879a4b…

MALICIOUS

PDF

39.1 KB Created: 2020-08-19 20:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 53bc8a6dfc66c0c5eeae57147b866807 SHA-1: 3d0a4e0aaaa3efd248c790d6ec362bf9123b7e20 SHA-256: fff2f8b908879a4b4871249e51c158944ed8d15145295ec5e7ec10e76c3278e7
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.com/pify?keyword=technical+drawing+with+engineering+graphics+pdf+free In PDF document text
    • http://files.woodlandsfrenchies.com/uploads/1/3/1/3/131383553/buvomagedax_dopiriveluk.pdfIn PDF document text
    • http://xiwefe.adorablediamonds.nl/uploads/1/3/1/6/131606457/dipej-wewemara-vepowezuw-xarikuzopefibaj.pdfIn PDF document text
    • http://files.duranet.ca/uploads/1/3/2/8/132815054/1919046.pdfIn PDF document text
    • http://files.uilmusicregion12.com/uploads/1/3/2/6/132682585/1394178.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/1/0427/7298/8071/files/4040499094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7422/3269/files/star_wars_aftermath_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82191842179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/fitudixegefukegojupogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3028/1381/files/manuel_access_bars.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7795/8816/files/titadeduxonoxeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7345/2697/files/48790693045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/diweguwuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/2485005186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8792/9252/files/zanibetekerubuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/54308614465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0068/2906/files/fixiguvowemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/25446388716.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 8

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_off00005a10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A10 5456 bytes
SHA-256: e119752835b7e2746f7d4c32f2f49850ee62df0ddd05e7c66b367ccc1537c4b8
font_01_sfnt_off00006ca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA2 10056 bytes
SHA-256: e7553ccbd83d16339f58f3eedca098986eae38d7bdb0d818cb022aa5c34a9b9f

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