Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c59b4d03ad009d0…

MALICIOUS

PDF

41.6 KB Created: 2020-10-03 09:11:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: de577c393d7cc44d44aee2ecc1116a9b SHA-1: fbaa7a7577a3ad6dde2110602c96c3e46078c9f0 SHA-256: 0c59b4d03ad009d0f6b0227cc3121d367d1f0e2b2a7d14190b25e55a88479811
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=bitter+moon+tamil+dubbed+movie+free In PDF document text
    • http://files.spahuahin.net/uploads/1/3/1/4/131437885/nuretujenemola.pdfIn PDF document text
    • http://fapesi.americanrootsuk.com/uploads/1/3/1/3/131380005/zojikadege.pdfIn PDF document text
    • http://fulewam.hambleden-wi.org/uploads/1/3/1/6/131606666/839b9.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/1/0497/7174/1338/files/23133216831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7880/6423/files/commercial_range_hood_with_fire_suppression.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/2717/0981/files/vivafiwix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/business_statistics_ken_black_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2119/7735/files/gezejenokeganax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41c7761f-46dc-4912-b5c1-436f306856af/xagenapawudapegukefonixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3816b11f-0f85-4cb3-a563-7b6753c50414/21577604648.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7115f6f-163a-4d5a-a393-042aac15010e/zejavus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4ad693c-fb8e-43b8-957b-d0e607ead898/nevumawabejudepu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e3b0c57-0038-4011-91ab-037c570b8520/36203878870.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_off000064cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64CD 5124 bytes
SHA-256: d2716e6b38fee2f06f0f9e22cde512a3f55fb71a1175e463f95c9e89d2827190
font_01_sfnt_off00007628.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7628 10504 bytes
SHA-256: e69b584a0807f3ff7b41e15d1e05b493ce072ac27e8b7b7659b21df0aa5f7b15

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