Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c4e0585e47e601d…

MALICIOUS

PDF

72.9 KB Created: 2021-02-13 18:37:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 810171d03fc4944b61d61fa618598b00 SHA-1: 570c9daa6255f60c79c9e3e7af2ee9b7688a1e3b SHA-256: 1c4e0585e47e601d8dbd4b63c54b024c90dab35652c152fab952833c3381d55e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://jacksth.ru/wix?keyword=millet+trident+guide+gtx+review PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4418369/normal_5fcc61e14b12f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370307/normal_5fd289e8a29a2.pdfIn PDF document text
    • https://vorupegesozuzow.weebly.com/uploads/1/3/1/4/131453293/7204280.pdfIn PDF document text
    • https://jijobowuzum.weebly.com/uploads/1/3/4/5/134590228/fosexavesisadokirota.pdfIn PDF document text
    • https://wevinavuligi.weebly.com/uploads/1/3/4/5/134505150/tizenedudometet.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/wuvepilamamuse/video_from_instagram_app.pdfIn PDF document text
    • http://ribezewipuzez.epizy.com/chrome_not_working_with_vpn_android.pdfIn PDF document text
    • http://ziboporo.epizy.com/ccna_2_pretest_exam_answers_2018.pdfIn PDF document text
    • http://xasonivuk.epizy.com/jobsdb_compensation_benefits_survey_report_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/bokelur/gigakazafisivaveku.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/zikuvaritivitenuzuruv.pdfIn PDF document text
    • http://bopevevene.epizy.com/67288399610.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_off0000e247.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE247 4828 bytes
SHA-256: 2d834c2885b47254be2a0e1469f2ff06204c886aa4a293241949544262f02094
font_01_sfnt_off0000f2de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DE 10552 bytes
SHA-256: 98247a2977425e28eb5d9bb13a33455cfd04a5604ec479e21ea029519113717d