Malicious PDF — malware analysis report

Static analysis result for SHA-256 16f80d143ed2a48b…

MALICIOUS

PDF

65.5 KB Created: 2021-02-28 04:07:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ede31a89663b3f13b2ed142330227211 SHA-1: 7f9022cd01d9129b6abbc0a3ec586f18c4f38c39 SHA-256: 16f80d143ed2a48be08c4a2e3809de8e0b8c6c5fd0794ce5527e67c1c55c8843
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://resalured.ru/wix?keyword=heavenly+chips+cookie+clicker+cheat PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413978/normal_5fd0c3735b0eb.pdfIn PDF document text
    • http://storezone.info/elements_of_comedy9kh7z.pdfIn PDF document text
    • https://cdn.sqhk.co/tixukiko/haSqhgq/tirenop.pdfIn PDF document text
    • http://policyhelpcenter.com/histria_do_caf_no_brasil_resumo87spo.pdfIn PDF document text
    • http://nowtorrentz.com/oracle_sql_developer_dark_themeblrkm.pdfIn PDF document text
    • http://complect-tech.ru/11703975747d7xwd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418987/normal_5fd26d59521b8.pdfIn PDF document text
    • https://cdn.sqhk.co/pasojixaju/heWrvKE/house_party_3_full_movie_free.pdfIn PDF document text
    • http://kinoogf.space/org._apache._solr._client._solrj_jar0alx3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pubexet.rf.gd/96416971868.pdfIn PDF document text
    • http://bikikifuxax.epizy.com/11410438842.pdfIn PDF document text
    • http://nejetetivapane.epizy.com/ziluxamazajafosutaxemev.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_off0000c49d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC49D 5208 bytes
SHA-256: ebda4c37d56f731885163790d6b74f5595e88568b9b1c975f9e615a614d4c2ef
font_01_sfnt_off0000d657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD657 10272 bytes
SHA-256: 24dacd36b47f1750db8737faccfc080913e7025c5c5898ef191a9a3608cfab67