Malicious PDF — malware analysis report

Static analysis result for SHA-256 d888aed14e155fb5…

MALICIOUS

PDF

43.4 KB Created: 2020-10-03 10:30:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e1aa0d854b27b75f30ef99a14f87b061 SHA-1: df52623529bda18c37db8d180a12347c0bafae14 SHA-256: d888aed14e155fb5c6cb54d214bacdc9c2f576e31520b31a893efd53010373b4
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/strik?keyword=shipping+container+plans+pdf In PDF document text
    • http://penamava.lbnchurch.com/uploads/1/3/1/6/131637014/nemed-dupapepoje-numeze-lapenodilir.pdfIn PDF document text
    • http://tewov.aatp-mysterygames.com/uploads/1/3/0/8/130814347/27e981b01ec15.pdfIn PDF document text
    • http://files.photography2envy.com/uploads/1/3/0/8/130874254/pakobelejano.pdfIn PDF document text
    • http://files.whlaw.com/uploads/1/3/0/7/130775677/mavidogelet.pdfIn PDF document text
    • http://files.doughliciousnh.com/uploads/1/3/0/9/130969061/jopapute.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/d634a58e-984b-4a94-bb4d-c5bb03162714/71870253990.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58ccb86e-c3c2-4fe2-871c-ddc516a54b39/64367649805.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41f992b1-3b2f-4785-b337-2b91473c707a/zejedejasugogomepat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bae3c574-a65c-4f9f-8002-2fa1e0b2249e/63376900753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/6097/1670/files/fishing_spots_near_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5847/0813/files/husky_impact_wrench_h4470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6042/8439/files/vawemasizifetabonuxola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9211/0231/files/uncharted_3_puzzle_solution_chapter_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d668191-41b8-4745-a27a-65a6387f4e24/lujer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc4340c4-6968-4ead-92e9-58b038611b29/12363057961.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/da7d8f6c-5fab-40d3-9ee9-34e4e24b5187/99329881114.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_off00006b45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B45 5520 bytes
SHA-256: d92f7a28f599025b03f007369f40e0c8a79d4a9175d070bd7966f8d689ec78dc
font_01_sfnt_off00007e0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E0B 10280 bytes
SHA-256: fbf754b7d81795812f6c38433d9827ccf8de75b6fffe6d5e0d53de149ff92426

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