Malicious PDF — malware analysis report

Static analysis result for SHA-256 71aeaaaa48888e49…

MALICIOUS

PDF

69.7 KB Created: 2021-02-24 08:46:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e1746df85a415b57974fe94cbd041d0b SHA-1: aee3a14320b4272a4b84032c97f623619040acf3 SHA-256: 71aeaaaa48888e492266aa6c66bd3f74a46b956f2622b30554a9c8ed7da06ae6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://druttle.ru/wix?keyword=subaru+touch+up+paint+cool+grey+khaki PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4474998/normal_600f57a777383.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461211/normal_602190970c208.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387421/normal_6011bc76a03ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408343/normal_5feda12d2f548.pdfIn PDF document text
    • http://xudisoda.66ghz.com/are_starcraft_aluminum_boats_any_good.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370054/normal_600ea4e4055d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422161/normal_600a1426b108e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454679/normal_603525406204a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418370/normal_601f57408cd03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459175/normal_5fdbfdd1f31ea.pdfIn PDF document text
    • http://bokevefinobi.iblogger.org/dining_table_cad_blocks_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459470/normal_6022cf26137ca.pdfIn PDF document text
    • http://bonus332.site/body_ritual_of_the_nacirema_analysisa1oei.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zujamovosologu.rf.gd/avast_ad_blocker_android.pdfIn PDF document text
    • http://gerevukome.rf.gd/focusrite_mix_control_download_2i4.pdfIn PDF document text
    • http://gaxodusipif.epizy.com/effingham_performance_center_facebook.pdfIn PDF document text
    • http://sitizef.rf.gd/tonevuxakerenojevi.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_off0000d295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD295 5428 bytes
SHA-256: 67a331234536be1e8ef1d590358a8fa1418f80584b791300dcf3c3eca8fe1581
font_01_sfnt_off0000e50e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE50E 10904 bytes
SHA-256: e85ce7ae8727ba7f408e9f80d440f4ddd880cd8e1b23d8d312d0af40a0404a0f