Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f14747e047dc5b1…

MALICIOUS

PDF

40.6 KB Created: 2020-10-15 13:12:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: c63c1a62169c9a84d36bb5a8dd4e885e SHA-1: a19329c44716768beaec3d67954e61c508a41ccd SHA-256: 0f14747e047dc5b17cdf9d7df87c02b8c4c56ae5c30f28dfed66349cc1dbc815
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/123?keyword=shiva+tandava+stotram+lyrics+in+tamil+pdf In PDF document text
    • https://derodaju.weebly.com/uploads/1/3/1/6/131606282/rugegajoxivusetazom.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/4041939.pdfIn PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/2b54858.pdfIn PDF document text
    • https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/gowijipomunolu_lirogub_loletakimup_rozugofekowe.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/sixukejomiwewanage.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/8e8ff749-2dc3-4e28-b6d7-6d3f4102c27c/fanawemabisesafuroxazeviv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aec09cbe-8add-46e3-be20-23ddbbdafcc1/zidobunadoto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0746df6-8cc9-4409-8afd-73b33344768b/14187081496.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa3467a3-836e-443f-9492-d6a1fa678f86/55873687591.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71a6212d-0d3a-4c1c-9f60-4ff65971e815/60869827415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3360/7842/files/47218513287.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6706/4991/files/rusidosezomipinamepas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/5511/2096/files/76601810619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7130/0268/files/ikea_expedit_desk_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8366/9412/files/grab_them_by_the_eyes_unblocked_games_66.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/2702/6079/files/pawuluvibizupanemamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6512/1699/files/49044606223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/5612/3034/files/alchemist_code_jp_tier_list_tsubaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9426/4996/files/zomugorado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9597/6856/files/2588580883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7877/9047/files/iridex_cyclo_g6_service_manual.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_off00005ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE3 5660 bytes
SHA-256: 8af4125c77bfb68ae90e0338434103d5d219d598e544bb391767250e4cf7a294
font_01_sfnt_off00006dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFB 12316 bytes
SHA-256: be0271c4e10ba0164188a3f13cb32668bd90acb6d1132e56fd011df5b65af4c6

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