Malicious PDF — malware analysis report

Static analysis result for SHA-256 e96712716f683420…

MALICIOUS

PDF

42.0 KB Created: 2020-10-14 23:56:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 8536615f9eacd6331f2313b388c16a31 SHA-1: 9112c8cc88386c749eac2958a69938a55e2d56ff SHA-256: e96712716f6834202df36bb5432bffb4753971d70ccec3ef1f6eafc8353767ad
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/pify?keyword=sap+fiori+launchpad+guide In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366324/normal_5f8720779c91e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366306/normal_5f871ea30c1a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365582/normal_5f874755ec7a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5f86f61f943b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366024/normal_5f86f57a1154a.pdfIn PDF document text
    • https://site-1044310.mozfiles.com/files/1044310/80972360153.pdfIn PDF document text
    • https://site-1042992.mozfiles.com/files/1042992/disaxawusoja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366982/normal_5f875b1a7fb16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366045/normal_5f86f5a4ddb6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366406/normal_5f87336511c98.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365547/normal_5f870af8ba56b.pdfIn PDF document text
    • https://site-1042025.mozfiles.com/files/1042025/9725024336.pdfIn PDF document text
    • https://site-1038910.mozfiles.com/files/1038910/birijuviwidexup.pdfIn PDF document text
    • https://site-1042442.mozfiles.com/files/1042442/lebamaximofed.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/1/0497/4120/1562/files/define_spiral_cleavage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/2054/4931/files/ps_form_3600-ez_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5844/8534/files/gelowadexutotawe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77b93895-65f1-4ca9-aa73-e501a559c646/41676639475.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93832134-dcec-4d56-ad53-65929c07611b/levinawisadedalo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e56aa7c-33a3-476b-bd19-abe9c10bafba/gomolifekibebelatux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/998dbfca-dbc3-45a4-a4c3-6ce215707953/41389835587.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ea4e46c-2702-4bd1-bf2b-c33c61e605f1/rizixoxepegegesaxenomas.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_off00006695.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6695 5340 bytes
SHA-256: a207de4b74b59a7fe59b534a0214500d07a594d1edb386f89f7da771b934b1ad
font_01_sfnt_off000078ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78AD 10060 bytes
SHA-256: 1f79b42446d1b30fb0221bc7f87352c5a3b6fc4436007df5309dcfb8fcc1818c