Malicious PDF — malware analysis report

Static analysis result for SHA-256 e22c1ecafaeb420d…

MALICIOUS

PDF

35.6 KB Created: 2020-11-05 05:57:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 1e172f2271b781f59b3b025227abbb2a SHA-1: f8d5006a8182a348433fdfb6e996e40c81cc403e SHA-256: e22c1ecafaeb420d84c6c99080d53607a7227f2239c9ab8c3a78fb49287c1c24
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=south+valley+sewer+district+map In PDF document text
    • https://lififotepul.weebly.com/uploads/1/3/4/3/134339298/kavupoxu.pdfIn PDF document text
    • https://ligotilup.weebly.com/uploads/1/3/4/3/134313371/rofiguzewapiduk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404116/normal_5f9348a066a68.pdfIn PDF document text
    • https://gubaxefu.weebly.com/uploads/1/3/4/5/134592394/torunivibo_kuvuraxupoxef_jeruruso_metifeluj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375093/normal_5f9e232c78b07.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/6c58036a-0096-46f3-a1e6-8746d79a111b/xukinonekomafipawobopuda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9055274-7b69-4868-b52c-71196c774fa6/philippine_flying_dragon_for_sale_uk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/021d1439-185a-4298-a670-7ccd6cc787c3/46404033014.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d351322e-0a3f-4db6-ac44-a493c106bfe9/70061994087.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c5702b9-712a-41f1-b1d3-85a8b6a7e9f5/a_frozen_flower_200.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/858a777a-f9b8-4013-876c-ebf5cf2ead5d/wivavemigudelesu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad2fbcef-0739-4e76-bbd8-9ba1b421e520/jasudezi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56ce2a7d-1517-4dac-adcc-da6789794d52/felony_vs_misdemeanor_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fa63fd4-e1c5-40f4-bb75-7be079b8fbdf/76800746114.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_off00004a15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A15 5672 bytes
SHA-256: f704fc8bd36c26e3562a5348fd2ded0f2e0744f766f1c75a50097601c798366a
font_01_sfnt_off00005d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D56 10788 bytes
SHA-256: 84045312bed604741f79b19e7230dd59ed3301fd4714814e61103fb8e0a5289f

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