Malicious PDF — malware analysis report

Static analysis result for SHA-256 9303629e806b9d3d…

MALICIOUS

PDF

40.5 KB Created: 2020-10-15 23:19:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 98490e016317f674c1c7306dbafdb810 SHA-1: 7ceeac95800da2d3700db8f5e9811ee152f426ac SHA-256: 9303629e806b9d3d4756b3ac23bcc4820157b045a16a8a77ce3098a5947d69fe
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=westinghouse+2+outlet+indoor+timer+instructions In PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/gapovowumepekegosiza.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/jogowezokuvaxu.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/godekux.pdfIn PDF document text
    • https://kenilajapa.weebly.com/uploads/1/3/1/0/131069910/luzukugilotiwomexek.pdfIn PDF document text
    • https://jufaxexave.weebly.com/uploads/1/3/0/7/130775513/dapobusedufinamu.pdfIn PDF document text
    • https://jiwepurojal.weebly.com/uploads/1/3/0/7/130775762/zirilapalir-bisojexowesomes.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/wimitipe-fusexe.pdfIn PDF document text
    • https://vibebivenef.weebly.com/uploads/1/3/1/4/131412032/mozonabipos.pdfIn PDF document text
    • https://digafixi.weebly.com/uploads/1/3/0/7/130776371/3554820.pdfIn PDF document text
    • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/9710655.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/37b28544-70a3-41ac-b2fc-3670b7956e4d/11706337658.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c42709a2-e63f-4b7d-a579-6c5a3af5f5e7/jibev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/739db9db-c6ba-4f8a-837b-843f9b7cf3a2/xojowanateladur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4bd47bd-daec-4327-b3e4-2e61144b84bb/30509893046.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0aa3c665-338c-4868-bbb7-03dbe3c0001e/56650821210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2420/2403/files/five_themes_of_geography_india.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/7162/2299/files/autosys_tutorial_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9154/9590/files/76881700708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/1079/1848/files/wunasesasivokogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0492/6377/1804/files/pediatric_advanced_life_support_provider_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/84919854455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6015/2488/files/sniper_3d_hacked_version_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7898/9462/files/best_princess_tsum_tsum_for_coins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8260/3415/files/honda_civic_ex_manual_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/2735/1717/files/jenifusabuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0314/9477/files/what_is_curse_of_binding_and_vanishing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8111/1968/files/hand_warmer_pouch_target.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_off00005e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E54 5288 bytes
SHA-256: 90ec34cdf32696d477746f71f400469ffe6fdd6f4c9a06240bebb6be5bf94331
font_01_sfnt_off0000702e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x702E 10348 bytes
SHA-256: da9cf315ce50f180cacebcaa0544d50fb501b579fd5e0d6a726ef7f97ee664cb