Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ec7d26f87578c7e…

MALICIOUS

PDF

71.1 KB Created: 2021-02-08 14:29:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 23225bdfede6f90dc41ed9800c60b80f SHA-1: de110e48d8af1ec51385039c5f8d4dee89ed2668 SHA-256: 3ec7d26f87578c7e83c5849ddd7a30106f921e22ef846cf97a1dabdfcd0f2585
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/123?utm_term=hi+ho+cherry+o+rules+2017 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427799/normal_6012fdf910c18.pdfIn PDF document text
    • https://jaxifojuw.weebly.com/uploads/1/3/5/3/135351184/8975970.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401540/normal_6018be2dc1e09.pdfIn PDF document text
    • https://cdn.sqhk.co/dubikureta/iaigKhc/81629761558.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/igiflws/83535981801.pdfIn PDF document text
    • https://togezajotutev.weebly.com/uploads/1/3/0/8/130874352/b6b14ba.pdfIn PDF document text
    • http://gofipupeseg.22web.org/69864055639.pdfIn PDF document text
    • http://kewisanoxiv.66ghz.com/recruiting_intake_meeting_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393901/normal_600df069941fe.pdfIn PDF document text
    • http://zufonirawanowo.iblogger.org/corrugated_iron_sheets_for_sale_brisbane.pdfIn PDF document text
    • http://wimokarekore.22web.org/37156086997.pdfIn PDF document text
    • https://cdn.sqhk.co/lapitobexeva/idghDgi/xixosijikupip.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://benebobuku.epizy.com/attestation_form_in_marathi.pdfIn PDF document text
    • http://ximuviliduxa.rf.gd/answer_20_20_handlebars.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/xenia_ohio_crash_reports.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_off0000d763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD763 5148 bytes
SHA-256: 0b02aa28672d43eb44ef69e626eb928082694bfa344625b3a14699faf8895872
font_01_sfnt_off0000e8f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F9 11500 bytes
SHA-256: 8b0f6e8dd2ec6a2341bf66522d238d726fa815e0b01c88565bd88d99e60c2ded