Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae266e6a6dd23b1e…

MALICIOUS

PDF

73.2 KB Created: 2021-02-26 08:24:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 3e0b5d28a6992dea3709da9d7c99b2a2 SHA-1: a8b18840b73f1446406b1fcd230fd15f64d4ff72 SHA-256: ae266e6a6dd23b1e9c8d94294c4bc8b9a5503ca818412c1635bde19c903d4018
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://baarspo.ru/wix?keyword=download+mobdro+apk+v2.0.52 PDF link annotation
    • http://xufelaketodo.getenjoyment.net/35316440024.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410694/normal_5fc86f7f40345.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465147/normal_5fd629548ed5e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480582/normal_5fc583ae8a126.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501231/normal_5fcf6f3122153.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380545/normal_6003b4506f8ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413113/normal_601d73f99669f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420454/normal_5fe64f4e71fab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367952/normal_5ff4002ff2aed.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422645/normal_601b9f192c5db.pdfIn PDF document text
    • http://vegekezivujid.22web.org/warcraft_3_frozen_throne_campaign_secrets.pdfIn PDF document text
    • http://fomuvegikutidob.iblogger.org/81338811557.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gididesipevex.rf.gd/links_awakening_bottle_grotto_shy_guy.pdfIn PDF document text
    • http://larujuzo.rf.gd/pit_bike_races_ca.pdfIn PDF document text
    • http://gijodege.epizy.com/interior_design_degree_colleges_in_kerala.pdfIn PDF document text
    • http://zonadomafi.rf.gd/activity_7_magnetic_field_simulation_answer_key.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_off0000e11a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11A 5712 bytes
SHA-256: d2293e002c7ee0783f987aa62d0242145c7d51d7ce78206dfd8ada7eee7eb867
font_01_sfnt_off0000f48e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48E 10536 bytes
SHA-256: 14c02377aa11442b28fd43ef1716fe6b6a9ffeca62e040c21a773475de938bad