Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc257da3d2b84014…

MALICIOUS

PDF

70.9 KB Created: 2021-02-28 04:59:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2ab16bdecdae6c506e526495ad24b466 SHA-1: 18bb60d39906298e17021ba60fe7158b723bcb4d SHA-256: cc257da3d2b84014aecc9beefd3e419de7f59b8e5fb86dd7c97a7ed7076d9487
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dugedepap.ru/wix?keyword=hobo+the+game+7 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450259/normal_5fec59ff50ab0.pdfIn PDF document text
    • http://krokoboko3.xyz/6330029122he7jf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465392/normal_60331a340ccd4.pdfIn PDF document text
    • http://salonapp.xyz/latewirevorunawodunewh9dco.pdfIn PDF document text
    • http://lg-supportteam.com/sowit4pwtf.pdfIn PDF document text
    • http://fortuneo.biz/instalacion_de_gas_estacionario_precioy2qyx.pdfIn PDF document text
    • http://sabovibin.medianewsonline.com/adjectives_to_describe_wet_weather_top.pdfIn PDF document text
    • http://gravkamen.ru/kubewewagodoleu3.pdfIn PDF document text
    • http://mkr-olimp.info/miles_and_huberman_matrix_analysis7jdli.pdfIn PDF document text
    • http://ceiling48.ru/sword_of_shadows_book_5iq8k0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372972/normal_5fe384b5afe0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403557/normal_600ef8cf9a10d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374380/normal_600c1ff2df688.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480905/normal_60157f7ee739f.pdfIn PDF document text
    • http://tamakar.xyz/40019128104iypdj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502567/normal_601d440941f89.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wififeju.atwebpages.com/digital_signal_processing_lab_manual_vtu.pdfIn PDF document text
    • http://gupizamowakop.myartsonline.com/what_is_pray_for_me_in_latin.pdfIn PDF document text
    • http://bagugexasorip.myartsonline.com/rapeniziripobugakuko.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_off0000db78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB78 4976 bytes
SHA-256: 4cae590b74598308387f20741dba0df6e06398230433ee58d5c13a473ce4bfed
font_01_sfnt_off0000ec50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC50 10080 bytes
SHA-256: c9e335df8e2c524fcc9d4aeec9dc6ad0e0ed63bd78b213f929aff75e5e42e7cd