Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ffa2fee066c96cc…

MALICIOUS

PDF

44.3 KB Created: 2020-11-07 07:59:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: f43f016d037261cc337e9f10468f380c SHA-1: a5779d5babce2233f20e7a5bfe1aae760b76a00f SHA-256: 4ffa2fee066c96cc90d6a03ff99a945a842a4bfa47f9d329590b42c3167776ea
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=marvel+future+fight+hacked PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458827/normal_5fa5d74509fc5.pdfIn PDF document text
    • https://jowojebutoda.weebly.com/uploads/1/3/4/4/134487303/5849430.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366331/normal_5f8f1dcf43739.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/tunitulo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://toxuzan.files.wordpress.com/2020/11/5047055067.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b69f8da2-8662-4218-b09b-e637386fc8b5/rugovapebijovesidixak.pdfIn PDF document text
    • https://lowewewa.files.wordpress.com/2020/11/supaden.pdfIn PDF document text
    • https://bewujus.files.wordpress.com/2020/11/99448243026.pdfIn PDF document text
    • https://nevosaxovib.files.wordpress.com/2020/11/fizimobaruweboratiweti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e7153db-aa25-43b1-9641-15ca81f761ee/bepogobawovimemevivexap.pdfIn PDF document text
    • https://vabavoresadi.files.wordpress.com/2020/11/debewasomogoro.pdfIn PDF document text
    • https://konomalipu.files.wordpress.com/2020/11/pivetedetezofovupoxido.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd8cc9b1-57a0-4557-aac5-8deb79b4d62d/lakeland_ledger_obituaries_past_week.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_off00006f01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F01 5236 bytes
SHA-256: 3e7f33644c60387891279bd04c50b1d0d90e603f098626c87347b1dca5644159
font_01_sfnt_off000080e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80E0 10368 bytes
SHA-256: 99a4d86890dbcd16a08fa023966208c9f6255b5ac5a499a111a609dfdbd13b73