Malicious PDF — malware analysis report

Static analysis result for SHA-256 824dc300b09067bc…

MALICIOUS

PDF

45.0 KB Created: 2020-11-09 13:14:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: e7a021a9a61d5ae7d4a088d44fda0d57 SHA-1: b5b091e9755b371b1588b82f6fa6b72ccfdba167 SHA-256: 824dc300b09067bc30cddc23751f915f8b3786a5e3aed0c44b1d82213ae1e5d7
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffset.ru/123?keyword=jack+benny+radio+show+wiki PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384160/normal_5f91ccf0a0872.pdfIn PDF document text
    • https://nosuxiseliv.weebly.com/uploads/1/3/4/5/134578333/8665333.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447465/normal_5fa8fa2045eeb.pdfIn PDF document text
    • https://pogedufofow.weebly.com/uploads/1/3/4/5/134512351/16c89eaf826325.pdfIn PDF document text
    • https://komamopiragi.weebly.com/uploads/1/3/4/4/134444029/fizedivovidag-lijowu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387562/normal_5fa15de6199db.pdfIn PDF document text
    • https://pirovosarelivo.weebly.com/uploads/1/3/1/4/131406751/b67371.pdfIn PDF document text
    • https://zemejinifuv.weebly.com/uploads/1/3/4/5/134577925/7e423878739bda.pdfIn PDF document text
    • https://kelawuduj.weebly.com/uploads/1/3/4/3/134330896/vegenizam.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/01c427c3-4d1f-4d69-9a2d-b9e52f99225c/fantastic_beasts_the_crimes_of_grindelwald_123movies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/635bbfa2-dfae-49bd-9d1b-f31344faca23/vakow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/564b2e27-03db-4626-9405-5431d5283f55/xiparipimibusu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/713c0831-4358-457d-ae27-3284c505ca04/entalpia_estandar_de_formacion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d9744ab0-665f-4541-8bf1-48259a63aa1c/xamesibewovaxawav.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CD 5088 bytes
SHA-256: 062e27f57159d7c82c3aef7dbc48d2fcba7afc165920208c1ce3cba0a082d2ca
font_01_sfnt_off00007514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7514 10536 bytes
SHA-256: 6a6e91b4f200abfc4e8d748a9395468a98d9217814b12129ae8ac61572b1efa0
font_02_sfnt_off00009922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9922 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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