Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2780fe0c27d15b6…

MALICIOUS

PDF

72.2 KB Created: 2021-02-15 07:50:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0e3f71d26af2ae15a5a6729f6f67c85c SHA-1: 8126719318a587a5f3f7d138ff80ff8f501d91c0 SHA-256: f2780fe0c27d15b65bcf1f4530e811510563ce1243383ff2478c5c322d07b911
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://seumenha.ru/123?utm_term=photo+on+resume+canada PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4497344/normal_5fdd22a48051a.pdfIn PDF document text
    • http://sawumivulopajud.22web.org/bilutotejipomigegusutew.pdfIn PDF document text
    • http://xobokalute.iblogger.org/kokuk.pdfIn PDF document text
    • https://sevirisedug.weebly.com/uploads/1/3/6/0/136089940/xedopora.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421056/normal_60009f315b740.pdfIn PDF document text
    • https://cdn.sqhk.co/purorelaz/gihcjjK/optical_inquisitor_17_full_version.pdfIn PDF document text
    • https://zodekunomaxuj.weebly.com/uploads/1/3/0/7/130739112/tetizomuwova-futasidaxodamu.pdfIn PDF document text
    • http://romeital.space/filetuvivopiju05swl.pdfIn PDF document text
    • https://cdn.sqhk.co/nutewakizi/ajg0Oic/afk_arena_codes_2020_november.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504870/normal_60138a7aaec29.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379742/normal_600e3972a9f32.pdfIn PDF document text
    • https://cdn.sqhk.co/namulofilox/jgieja9/befexutazosu.pdfIn PDF document text
    • https://cdn.sqhk.co/jarixizotib/9igfGgj/short_film_skin_trailer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wumumusonozukak.epizy.com/xoxufatizitanesumokobud.pdfIn PDF document text
    • http://lisotabisalak.epizy.com/kuzulidabofiseropavobogiw.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_off0000df84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF84 5148 bytes
SHA-256: 47f71af3718a555194add6f93d145bdb01eaabe276501a97e80e03bfaf683a43
font_01_sfnt_off0000f0d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D9 10300 bytes
SHA-256: b6c3f409f85a8cccb84556a6e4237283d05ec2cc50bbf26c0fe4501dafa922e4