Malicious PDF — malware analysis report

Static analysis result for SHA-256 7240dc85092f9d31…

MALICIOUS

PDF

43.7 KB Created: 2020-10-05 03:54:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a47a504fcda89a9abbee28abdb8fb893 SHA-1: 1b1f6bf5700f0a7674be7940d56e9ca7206f631a SHA-256: 7240dc85092f9d311429350524883607ae20b4e349e80e17e7876ebc33e6a510
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=pathfinder+curse+of+the+crimson+throne+character+advice In PDF document text
    • http://files.monkeybarscreative.com/uploads/1/3/2/3/132303316/vosaf.pdfIn PDF document text
    • http://files.londoneventplanthire.co.uk/uploads/1/3/1/3/131381021/7db67.pdfIn PDF document text
    • http://files.forgottenlot.com/uploads/1/3/0/8/130813409/4057526.pdfIn PDF document text
    • http://luvikude.mysuidora.com/uploads/1/3/1/1/131164250/pufimasujevo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6816/1184/files/unicycle_for_sale_used.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/2102/0578/files/happy_room_unblocked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5709/4559/files/90660354551.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51bddc29-2b25-421a-b042-1438d742fb1e/newowu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04d4e287-a9f2-4c5c-a72c-34b47b657cb1/27185306229.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/490e4d56-75b4-4630-bd9b-c21ea002ddb9/gobewisadezonawiresabofe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/659fd7fa-50cb-48e1-9486-8a9d72e22fe1/zikaxinelikojit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d39c9dcb-ca3d-4d5e-b934-9aeaee48a11f/61001225221.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd52ab8e-b14f-4a6c-aaec-dd9be9082fe1/lozagizozade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e265c81-369c-4967-abfb-bf69ef1f1ceb/xukepopufukevunaraxutafev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a86f2e51-4580-4b42-bd3a-3d362b39e8c9/wevamunurodisokepite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ac97f71-29ec-4978-b695-58b1cc2620a4/43175118466.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfa8f1f6-a6e4-47bc-a3ab-e2f2d7b23e84/movirazi.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 1

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_off00006d09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D09 5288 bytes
SHA-256: 619c26e1f4d1a863e4e2c6bd3459fd48eddba05b27ed336ed39e941ac2c7bbaf
font_01_sfnt_off00007ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE6 10160 bytes
SHA-256: 13604c3e4501bc7d827e9ce2fb23d7a8e64b879cf93364ed8a3c4cdd5ebc20fb

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