Malicious PDF — malware analysis report

Static analysis result for SHA-256 2479a21e54a0ca64…

MALICIOUS

PDF

65.3 KB Created: 2021-03-03 17:54:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cd06cbd4e786c03e55fa095e99a97243 SHA-1: 72c891d1b78f548f865b4df2cfd311d5f30ed6d7 SHA-256: 2479a21e54a0ca64ecdc2a6d073245a1a4ceb364c1512c0c325e85f8232b2620
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://baarspo.ru/wix?keyword=eastside+baptist+church PDF link annotation
    • http://options.expert/limits_to_growth_reportz3ipn.pdfIn PDF document text
    • https://dijatetobof.weebly.com/uploads/1/3/4/3/134322453/4da9693b402.pdfIn PDF document text
    • https://xaxepilote.weebly.com/uploads/1/3/4/2/134265473/kepoti.pdfIn PDF document text
    • https://wopinifem.weebly.com/uploads/1/3/4/8/134884590/tudodumanadupi.pdfIn PDF document text
    • http://ketotreno.buzz/35700643192l5ekl.pdfIn PDF document text
    • https://cdn.sqhk.co/lexijunibul/phjZ0jc/subway_surfers_codes_2020_cambridge.pdfIn PDF document text
    • https://cdn.sqhk.co/pimupigedu/Zgi9gd3/94956502907.pdfIn PDF document text
    • https://cdn.sqhk.co/mudebijutene/1jen7ig/kanto_starters_in_pokemon_sword.pdfIn PDF document text
    • https://jijoforupet.weebly.com/uploads/1/3/4/8/134864875/678228.pdfIn PDF document text
    • http://yoga-italy.space/food_rules_michael_pollan_listt0vby.pdfIn PDF document text
    • https://cdn.sqhk.co/fasisela/fpggmVH/likert_scale_analysis_excel_template.pdfIn PDF document text
    • https://zeruxitewisav.weebly.com/uploads/1/3/1/8/131856065/tumiwomoduwatejobu.pdfIn PDF document text
    • https://xuvurabog.weebly.com/uploads/1/3/2/6/132696285/barixoge.pdfIn PDF document text
    • https://jenogisemelo.weebly.com/uploads/1/3/2/3/132303080/6efa1472cb524.pdfIn PDF document text
    • http://visionnew.xyz/15225278955va8uk.pdfIn PDF document text
    • http://vannabanyavsedela.xyz/aws_vpc_private_dnsoevac.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/9l3qe8w/51594222808.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC507 5228 bytes
SHA-256: 26e2550b7d5afc3be15c2dafbef0a62a3dd974933a8d3850f3c828d3b4b1121f
font_01_sfnt_off0000d6b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6B9 9916 bytes
SHA-256: f460e625fffa20567db7602f8085224c5b630134c1f60cd40e5880a56d35c898