Malicious PDF — malware analysis report

Static analysis result for SHA-256 f259ed7e0de15ff2…

MALICIOUS

PDF

71.1 KB Created: 2021-02-25 18:45:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fa5e099223e8671aaeb05ec767199ac6 SHA-1: 2a14493905469091346e15b47059183b3f061b9c SHA-256: f259ed7e0de15ff2e81cc8da47702c0f5a5a95c6a8a0abf0f6e2ad461e26ec88
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://bologen.ru/award?keyword=beretta+m9+22lr+holster PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480393/normal_602de0614f40c.pdfIn PDF document text
    • http://letxxnx.org/principio_de_dualidad_de_la_materiabh7qb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377371/normal_601051e6c719e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500904/normal_603488765ca9f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465387/normal_5fe16557d5b76.pdfIn PDF document text
    • http://heliusdesign.ru/8849420112085gzk.pdfIn PDF document text
    • https://ladetizor.weebly.com/uploads/1/3/4/7/134731735/3397273.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427086/normal_6028b34728fc4.pdfIn PDF document text
    • https://fitokuzigijot.weebly.com/uploads/1/3/4/6/134681543/7418394.pdfIn PDF document text
    • http://trynon.xyz/jonathan_gold_101_restaurants_mapeohq5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403561/normal_5fef6c5fcecb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416510/normal_6011ee703a4b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386618/normal_60333959c0841.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/lowuwofuxali/42241628009.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/manualidades_navideas_para_hacer_con_nios_pequeos.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_off0000da6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA6C 5264 bytes
SHA-256: ef34e5fef87fb16776335f72c87ca694c8ebd8d865bd69d5d1061f51d13acaac
font_01_sfnt_off0000ec1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC1B 10624 bytes
SHA-256: e43bc45670421764ed6aa45520045415a1554ce253ddacb2e1c3f0eedea9d9d8