Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cc44fb9f1845c38…

MALICIOUS

PDF

42.1 KB Created: 2020-10-25 18:08:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-26
MD5: 5350351c02b6fd47ece9cc0032bc37da SHA-1: 072d21b4f36007a52521ff15e975ef1411d5e6fe SHA-256: 8cc44fb9f1845c380f1f9069ccc392c61d2e0bd8710cc84295c1fc77b753113e
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://cctraff.ru/pify?keyword=define+pricing+strategy+pdf In PDF document text
    • https://nagifinapu.weebly.com/uploads/1/3/2/6/132696111/2657473.pdfIn PDF document text
    • https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/vuzazirowabixebigovo.pdfIn PDF document text
    • https://letalisukom.weebly.com/uploads/1/3/4/3/134316231/99848.pdfIn PDF document text
    • https://rukutatonaneto.weebly.com/uploads/1/3/4/0/134012616/ff080e2de50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403534/normal_5f94433bd5222.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386354/normal_5f8d8c1529c41.pdfIn PDF document text
    • https://zukamukenipebo.weebly.com/uploads/1/3/1/3/131380388/sabolazukudarinuwi.pdfIn PDF document text
    • https://nudopimiga.weebly.com/uploads/1/3/1/0/131070212/gufifiwet-jilezevemabo-ximaj.pdfIn PDF document text
    • https://mupibidegupek.weebly.com/uploads/1/3/0/8/130874042/1890735.pdfIn PDF document text
    • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/bagaforop_menif_tofafa_gevokidiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00006662.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00006662.bin)
    • https://uploads.strikinglycdn.com/files/97c97bec-3ba3-4eec-8312-50ec254c6bf3/jotipipevigulubaloboxugu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8435abea-68d3-4329-bb32-57a49f3ec32e/99089277202.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cdc3959-8344-4127-bb39-39628b178e12/72143505639.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cab8a90-68e8-4dfd-8587-86eca1ae4c4e/72301576519.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/887b6def-35bc-436d-a20f-8cf18bf2834f/dolirinepibabixisovavaji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6de6ea2f-1957-45e5-8cb3-b5fd4a7207b8/93560073689.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/88603497004.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/dawejimevakokenotajofigaf.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 extracted file (font_00_sfnt_off00006662.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006662.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6662 5392 bytes
SHA-256: b121a2dc2496541bced1c70b69657d3f2fc6c3c26f46502ae57a5b587f0b113a
font_01_sfnt_off000078d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D1 10368 bytes
SHA-256: f17965fe73c18840a33b1a2c7b6c387cb06930cabac389509e3d84f1544a0cd3

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