Malicious PDF — malware analysis report

Static analysis result for SHA-256 59002b8699e79ea4…

MALICIOUS

PDF

41.5 KB Created: 2020-10-10 05:53:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: b5861a60eb5537e3de23d6e610f066a6 SHA-1: d66f6d711f6a9fd936104cc835a45becacc45103 SHA-256: 59002b8699e79ea48e5c87f81a28ffa81cdd1d43f28cfd6a55ea6e2b301fbf43
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://cctraff.ru/strik?keyword=clinical+bottom+line In PDF document text
    • http://xavuvuma.sophie-elise.co.uk/uploads/1/3/2/6/132681394/9934659.pdfIn PDF document text
    • http://pugines.laverdasthoughtsandmemories.org/uploads/1/3/1/6/131637352/keguzenivofobekuveze.pdfIn PDF document text
    • http://files.aromacatering.net/uploads/1/3/1/3/131379732/2811282.pdfIn PDF document text
    • http://files.jonathandogaming.com/uploads/1/3/1/4/131411688/9021287.pdfIn PDF document text
    • http://files.public-school-library.com/uploads/1/3/2/6/132680907/tuwobeg.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/85be8848-2e9b-4035-8a17-b28b30e1c631/xelujalidigitugipezakigi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29e09dfa-4039-49fc-861d-6e4e6b5e5222/41178463641.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67c5d376-b20c-47d8-9f89-cb3a1229e77c/rorosenanosewajupixaza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e6e9cf9-ce8f-4c2f-a3c8-eb65119edf42/20243087504.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc02d134-e817-4a21-983a-b541f904ae8c/68063298821.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4456/9242/files/girl_unblocked_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/future_imperfect_tense.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9280/1704/files/86241772021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8047/2984/files/fresh_roast_sr500_cleaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8901/7497/files/luzemiwugoloz.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_off000066df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DF 4716 bytes
SHA-256: 9080b98a24417f15c374aff38247bfe9fe61b9b2e7753e754c7030668f261529
font_01_sfnt_off000076d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D7 10088 bytes
SHA-256: 2cf000808430878ce5d39fc48bf1b07bc257e90132b51a0c74307222754c4f35

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