Malicious PDF — malware analysis report

Static analysis result for SHA-256 faea6f1c2ed57cf1…

MALICIOUS

PDF

72.5 KB Created: 2021-02-12 01:09:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 501bf3383d4725d602ff5d712dd95655 SHA-1: 6ced0d5a90ffb5a93ad808c6818fa80a26b73b4c SHA-256: faea6f1c2ed57cf15e66b1046aede42146d90eb574e2a2a9de609e74c4452c9e
186 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 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://jottigo.ru/wix?keyword=football+run+out+songs+2019 PDF link annotation
    • https://jabekidedur.weebly.com/uploads/1/3/1/6/131636775/jobit.pdfIn PDF document text
    • https://vunozeguwogiwe.weebly.com/uploads/1/3/4/7/134745761/355b2b4.pdfIn PDF document text
    • http://copyright-central-media.com/baixar_gta_san_andreas_para_pc_fracoz8ydn.pdfIn PDF document text
    • http://myfoxing.online/toontown_rewritten_task_guidetv005.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450148/normal_5fd19287e36b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481278/normal_6021a4bac73b1.pdfIn PDF document text
    • http://milanomodaitaly.site/mathematics_vision_project_math_3_answer_keym34fu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403143/normal_5fe77e820699b.pdfIn PDF document text
    • https://xapitutas.weebly.com/uploads/1/3/0/8/130813648/bc02c4db94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414175/normal_5fd2cec35c814.pdfIn PDF document text
    • http://lnstagramcopyrightcenter.com/plus_one_zoology_practical_recordh93oh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dovabaz.epizy.com/fofelotitu.pdfIn PDF document text
    • http://fifaraxilej.rf.gd/angularjs_interview_questions_and_answers.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_off0000de95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE95 5432 bytes
SHA-256: cc13d996dda3b4fca06573f08c5bc244769277fa4173880bf8433bf92b58120c
font_01_sfnt_off0000f11b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11B 10616 bytes
SHA-256: 71d2a0a94c15b1515850c9ab276b7b446ad5b4a49f7dcf477b6d9039f5d8cfcd