Malicious PDF — malware analysis report

Static analysis result for SHA-256 19a62c31e57b060f…

MALICIOUS

PDF

61.4 KB Created: 2021-02-21 22:39:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 667e0596bd3f0b58b80c43a2e5641464 SHA-1: 58d099e16e93ca07ae596878d1c5a84887c622e7 SHA-256: 19a62c31e57b060f0a856fd2de6d2dcc2bb6c770a338e2b296e3b14ac5a2bbbe
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jottigo.ru/wix?keyword=cemu+emulator+super+mario+3d+world+download PDF link annotation
    • http://tulimosigen.22web.org/chinese_collar_nurse_uniform_philippines.pdfIn PDF document text
    • https://jedurabononip.weebly.com/uploads/1/3/1/4/131453193/43fa8e30ff.pdfIn PDF document text
    • https://dutulizat.weebly.com/uploads/1/3/1/4/131436991/serusulunoli_wigugudib_dokapugotojudux.pdfIn PDF document text
    • http://energierecrute-emplois.com/91085392646za8zo.pdfIn PDF document text
    • http://deutschebank-meine.com/899158581429ytz7.pdfIn PDF document text
    • https://wanevowak.weebly.com/uploads/1/3/4/4/134465130/6820769.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377933/normal_6025882d2340f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462379/normal_5fed49b98f38d.pdfIn PDF document text
    • http://nyvelsets.online/77570921740ibrhw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://retesatitogeli.epizy.com/the_credit_suisse_global_wealth_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/jenn-_air_dishwasher_jdb-_5_installation_guide.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_off0000b4a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4A3 5268 bytes
SHA-256: 5c690dc6fa6006f0e164603cc57ae0806c2f54a145b4a15742954f1d54393c85
font_01_sfnt_off0000c678.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC678 9928 bytes
SHA-256: b90450bca4c47757d314f84c5c83dd3102cf086fcfe08bb430537877d6dce395