Malicious PDF — malware analysis report

Static analysis result for SHA-256 1000a5f45918417d…

MALICIOUS

PDF

53.9 KB Created: 2020-10-13 23:47:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 093f0b88ccacdae6a6d3cf8f6560c577 SHA-1: ebdddf7a758b6ad7ba54712d01d1303a126e651c SHA-256: 1000a5f45918417d23e202aa14bba19d094eaa5df70aca088636903d35280bc7
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/strik?keyword=c+launcher+old+version+apk+download In PDF document text
    • https://site-1039958.mozfiles.com/files/1039958/jupiliduxurebekep.pdfIn PDF document text
    • https://site-1038442.mozfiles.com/files/1038442/zepiruzizawoliwadegi.pdfIn PDF document text
    • https://site-1040256.mozfiles.com/files/1040256/62598208545.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/199877.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/palaj_xofepevez.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/7989682.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/9b53ec72f.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/wirexanusir.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/2122744.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/1/0496/2028/7639/files/factoring_equations_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/6577/6539/files/55943216669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1541/2632/files/tokebujure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/3935/8882/files/perkins_354_diesel_engine_specs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3620/5479/files/ice_titan_ark_requirements.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6648 5284 bytes
SHA-256: 1b480c7f2525c62daa69715a632835fd4d51e9697066bcb0ddb2d3c1660c3298
font_01_sfnt_off0000783e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x783E 3696 bytes
SHA-256: 04e13b0ac1c1d3619a934ad7722ddcd4a548fa511c2a66aae30dfeb70ee24afc
font_02_sfnt_off000086f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F7 14048 bytes
SHA-256: 59fd9a27b649ced0de1ebfa54694c56503b018a6df60c38491ffd2932f2cadf0
font_03_sfnt_off0000b3a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3A0 16360 bytes
SHA-256: a636e96ca0ba7fd3c3ee281ec6bc2169600162b787b0f4487a378607b30203c9

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