Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ffb34a86912df4b…

MALICIOUS

PDF

69.7 KB Created: 2021-02-23 00:41:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 16329b180c82e9c35b6d6f6981c1190e SHA-1: 272accfcf2bd1f64b11c13152a6c0249c041bad4 SHA-256: 4ffb34a86912df4ba45a67ae12dd4762eabdc59195beaf3b0d093f9c43de7736
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=smile+direct+club+fresno+ca+93710 PDF link annotation
    • http://goldenframecollision.com/wogakufgdtzr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427097/normal_5fd8db67d4baf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469119/normal_603357574a978.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418184/normal_5fea35861c596.pdfIn PDF document text
    • https://zajebujop.weebly.com/uploads/1/3/4/9/134902249/bufufekagepob.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464702/normal_5fd08feacf2fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462345/normal_600cec929d094.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408976/normal_5fd63d0d61474.pdfIn PDF document text
    • https://nunugaborunis.weebly.com/uploads/1/3/1/4/131437119/vavojomaj_mesomo.pdfIn PDF document text
    • https://bopamoverera.weebly.com/uploads/1/3/1/4/131408256/ziwuwofijiwijefinebo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471464/normal_5fcbac58cbb59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368218/normal_601765978c834.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rimojiruseb.rf.gd/73866221920.pdfIn PDF document text
    • http://bavodokebak.rf.gd/fedex_drop_off_brooklyn_mi.pdfIn PDF document text
    • http://zugejono.epizy.com/tewosemufageka.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/98568552674.pdfIn PDF document text
    • http://wabelat.epizy.com/bojuzuvevijuwarogani.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifumofelu/52375459727.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/chunky_platform_70s_boots.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_off0000d148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD148 6004 bytes
SHA-256: d69dab4bd1a9665b617e0a9f32e90f2472d032c9b782b5b06d9811ddc28c9856
font_01_sfnt_off0000e5a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A0 10620 bytes
SHA-256: bc6de587ea354981dc500be7158e5a375e3be2f59e6cc56a3d85f7dc472688d0