Malicious PDF — malware analysis report

Static analysis result for SHA-256 5798aece35c0ba30…

MALICIOUS

PDF

58.8 KB Created: 2020-10-11 08:14:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 4ac4ba5c058827bc30dc8b58b4a7f752 SHA-1: 33b6423e07d3dc404d7dd390e9bce2af5e4cf305 SHA-256: 5798aece35c0ba3093ab10bd5c2ba66174746a385509a3b9d2803674c3c96340
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://gettraff.ru/pify?keyword=ford+territory+owners+manual+online In PDF document text
    • http://tilopif.poloprague.com/uploads/1/3/1/6/131636664/saxarunos.pdfIn PDF document text
    • http://kamuza.theplanechase.com/uploads/1/3/1/6/131606186/a19a869f819e56.pdfIn PDF document text
    • http://bixesaj.alternativegolf.co.uk/uploads/1/3/0/7/130776031/rerip.pdfIn PDF document text
    • http://files.redwaterminorball.com/uploads/1/3/1/8/131856119/1063642.pdfIn PDF document text
    • http://files.volunteercentermchenrycounty.org/uploads/1/3/0/7/130775998/nazebajubalorafewe.pdfIn PDF document text
    • http://pakevuwev.privatetourssanfrancisco.com/uploads/1/3/1/3/131383309/429c49722eef.pdfIn PDF document text
    • http://files.alfapizza.net/uploads/1/3/2/6/132696018/dixuzezoler.pdfIn PDF document text
    • http://files.yourstarsaligned.com/uploads/1/3/1/3/131383629/luvatot.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/ef84f054-8008-45ba-ae2c-1206edc8b85b/bufirexumodi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3de2563-77a6-4f9c-93c1-5903a1b3017f/sarele.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dd2afde-8516-4632-86e0-5ed755807061/xajobixawuxasusetatag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8115faca-ac5b-4480-be5f-7ae143102b61/1938010220.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_off0000a92f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA92F 5120 bytes
SHA-256: ac6d505e7dfe0d653c50c72e2d11ea25b0f9966b53154fbc214e807f1e57a75c
font_01_sfnt_off0000ba9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA9F 10560 bytes
SHA-256: aa373e98f0d0745e3a8a302b21b3826b73fa82173271d6cc05304ddc9eb9ebb1