Malicious PDF — malware analysis report

Static analysis result for SHA-256 05f504a6a8ee41af…

MALICIOUS

PDF

42.5 KB Created: 2020-11-08 02:16:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 9ad7639bc5c9361e74155435f1e2c10b SHA-1: 4271ba7ab8b8a78cc846a404d48ac8f55b9caaf9 SHA-256: 05f504a6a8ee41af3e8ba1e244841085f8db2c672aa5c5074c58cf40baaf3304
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/aws?keyword=important+people+in+the+french+revolution+war PDF link annotation
    • https://kigixefowu.weebly.com/uploads/1/3/4/4/134496532/siguvazolibedu_tedokudefe_mojubalub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389599/normal_5f8deff00c79a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373261/normal_5f8a10c32ad98.pdfIn PDF document text
    • https://kekulewu.weebly.com/uploads/1/3/4/3/134398637/taxuradunez.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lixuzo/2672630928.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/muwixadu.pdfIn PDF document text
    • https://s3.amazonaws.com/xopugup/morinireziba.pdfIn PDF document text
    • https://pufelaneniw.files.wordpress.com/2020/11/10287596081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/69d70ad0-08fb-4cbf-bd12-e3e9548ace9f/zusenepigufuf.pdfIn PDF document text
    • https://mutozofe.files.wordpress.com/2020/11/65548376527.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bd45a90-ab98-4ff0-af5f-c84c93c18970/st_catherine_church_in_spring_lake_nj.pdfIn PDF document text
    • https://dagirivemaj.files.wordpress.com/2020/11/mobile_home_purchase_agreement.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/47552692106.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/ata_guidelines_2014.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_off00006719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6719 5168 bytes
SHA-256: 9169f3bf125e61866976910ecdd9afb4c395479dd2b850bdf01dfd7c7e1e968a
font_01_sfnt_off00007894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7894 10680 bytes
SHA-256: 8c16b7471f101df94decab004b9f42dfb7f3e2e3d0f967b714022823ac644929