Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8f8fc96d3070c2f…

MALICIOUS

PDF

41.6 KB Created: 2020-10-02 03:50:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: f5b9a22a44dfeadd89cf4667b00d8d29 SHA-1: e1aa4070f6ee8c121c1468129af733a282fd0863 SHA-256: e8f8fc96d3070c2fd28688c212b202a1b55d28b585746be864b04bf57671be0a
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://ggtraff.ru/strik?keyword=1996+polaris+xplorer+400+4x4+manual In PDF document text
    • http://dexadi.danvillepd.org/uploads/1/3/1/4/131438562/zozabalupexol.pdfIn PDF document text
    • http://buxur.trubodyphysicaltherapy.com/uploads/1/3/0/7/130739963/lorudipakozome.pdfIn PDF document text
    • http://files.millseatonpublic.com.au/uploads/1/3/0/8/130874633/ed3e6e.pdfIn PDF document text
    • http://zekikeme.millsupportzuid.com/uploads/1/3/1/1/131164250/wavevenupudogo_fuzapagepe.pdfIn PDF document text
    • http://kevixedo.chessfacetoface.com/uploads/1/3/2/6/132682404/tedeluzimigufojux.pdfIn PDF document text
    • http://dulab.fatbellybassmasters.com/uploads/1/3/0/7/130739086/495ed0ef25.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/4ba22e94-9e73-4a41-890c-f46a3df20cd0/89536992455.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7a84bdf-8e0d-4ced-a251-cc94f106f76d/jomaxelozobuvivukitiberi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9671/7977/files/ragnarok_m_hunter_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4512/8858/files/66251355450.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_off00005e6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6B 5528 bytes
SHA-256: 5594246747e5b9ceeb5c8ed38a25a4188ac4b43f0a106ef1636893875481277a
font_01_sfnt_off00007125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7125 12984 bytes
SHA-256: ed3e2dd03a758b3bd43bafb660b534da32654c502f07cc56b8096bd90160473e