Malicious PDF — malware analysis report

Static analysis result for SHA-256 e05761b52b9a4c27…

MALICIOUS

PDF

69.0 KB Created: 2021-02-21 05:06:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0ce1ddae41c1c7765bf09dbe49f67372 SHA-1: 4a9037cbcd0c4ee9e5dc03b159124a84c398730b SHA-256: e05761b52b9a4c279c56e39bda3e86825039163dcb22ba20e5063c406cac5044
186 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
  • 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://leonvi.ru/wix?keyword=8.3+independent+practice+page+261+answer+key PDF link annotation
    • https://wadapunefivuda.weebly.com/uploads/1/3/4/3/134307948/woladax.pdfIn PDF document text
    • http://weinmvc.net/chalte_chalte_old_movienca44.pdfIn PDF document text
    • http://zespodsvetkoy.site/foresubavnmep7.pdfIn PDF document text
    • https://gabonavokelog.weebly.com/uploads/1/3/4/6/134684269/bivinegijibe.pdfIn PDF document text
    • https://cdn.sqhk.co/lewulula/6gjMgdE/rudavesubegisawaxuzetila.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/OjckFjj/capstar_flea_treatment_near_me.pdfIn PDF document text
    • https://zegosonov.weebly.com/uploads/1/3/4/1/134109065/215a0c15c2ff0f1.pdfIn PDF document text
    • https://rebuxikaxaj.weebly.com/uploads/1/3/4/6/134668288/a156f74ed1.pdfIn PDF document text
    • http://vezugumak.22web.org/81689691255.pdfIn PDF document text
    • http://buyfastedcircle.xyz/dadish_switch_review7sgaz.pdfIn PDF document text
    • http://test123test.xyz/62790070115wy8jk.pdfIn PDF document text
    • https://pugiputofal.weebly.com/uploads/1/3/4/7/134740318/57416.pdfIn PDF document text
    • https://bivixogerixud.weebly.com/uploads/1/3/4/4/134469213/tukemanuxalude.pdfIn PDF document text
    • https://gisodotok.weebly.com/uploads/1/3/5/9/135971357/giganepatadibebam.pdfIn PDF document text
    • https://bulewafaki.weebly.com/uploads/1/3/4/6/134682315/lamalowupetipi-bezelarowulebeb-taroxafifekap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kafises/93731267197.pdfIn PDF document text
    • http://nufagogofuj.epizy.com/censor_board_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/toxicwap._com_albums.pdfIn PDF document text
    • http://pibumox.rf.gd/minna_no_nihongo_renshuu_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tisegovofu/caries_risk_assessment_forms.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_off0000cee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEE6 6100 bytes
SHA-256: 9ac62148eeebb224c2562e5738f29cc708c3e4b19fac93e1f12c6e557c549161
font_01_sfnt_off0000e3d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D7 10136 bytes
SHA-256: 5b5b9766b5305cbb1e5f3968518de0bbbc5e28a1ccdbd74c9e1d94f13c040298

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