Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b7b6093c18169af…

MALICIOUS

PDF

71.9 KB Created: 2021-03-04 02:20:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: efd960f5024cd963946fa0d7c654742d SHA-1: ac24f3a05e480a223017408701d711cd24b4121e SHA-256: 7b7b6093c18169af3e0645b34cb0be666c6a04c9c242cd65f5f113132f3697bf
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/award?keyword=how+to+fix+a+hermle+clock PDF link annotation
    • http://sakhavto.ru/novela_el_reino_de_este_mundo_analisisgl978.pdfIn PDF document text
    • http://uscreditcheck.info/usps_send_international_mailq8f9l.pdfIn PDF document text
    • http://theporte.xyz/12938320905kk8m7.pdfIn PDF document text
    • http://wiinorama.space/pidusujjw1rv.pdfIn PDF document text
    • https://dovavifedudefew.weebly.com/uploads/1/3/2/7/132710721/3ecd13.pdfIn PDF document text
    • https://cdn.sqhk.co/temududote/cgeEMc8/zombie_highway_drivers_ed_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/manuguwe/P1jgjdw/wajidapajozezamo.pdfIn PDF document text
    • https://gapudozesaneg.weebly.com/uploads/1/3/4/5/134525911/3190334.pdfIn PDF document text
    • http://hellesypakk.online/810388625802mshk.pdfIn PDF document text
    • https://cdn.sqhk.co/nojebimit/hhjticB/long_coffin_nail_designs_2019.pdfIn PDF document text
    • http://micrometer25bill.site/22579138507aeilf.pdfIn PDF document text
    • https://vugiwaxe.weebly.com/uploads/1/3/4/7/134739196/bawirodigo.pdfIn PDF document text
    • https://tagorawijetix.weebly.com/uploads/1/3/5/3/135392874/lijorefigime.pdfIn PDF document text
    • http://digitalliteracyinstitute.com/zoretuwulilelodej0iwko.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/dabatisew/sunglass_lens_color_guide_for_fishing.pdfIn PDF document text
    • https://s3.amazonaws.com/lotibabakuj/capture_one_11_styles.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/64134892957.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_off0000de07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE07 5128 bytes
SHA-256: 868f5fe227a8ebb560113ad5baa9ad60d8a1281c232824d1509bc6b50f63ff19
font_01_sfnt_off0000ef63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF63 10372 bytes
SHA-256: b6fcac76e56e140aa3d54e7a79c7691dfd1a33988938cba887eb724e8e473909