Malicious PDF — malware analysis report

Static analysis result for SHA-256 5343ba089cd8d5fc…

MALICIOUS

PDF

69.0 KB Created: 2021-02-14 18:02:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 37d5bde2216d2c5f0250bbf26aa1ea22 SHA-1: 69d74bc1b2f109a284d7b17c7a8fa4999bde0c70 SHA-256: 5343ba089cd8d5fc9d83b99e387e5361b98c373fc94501dbdde7bfe65c3ab881
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://jottigo.ru/wix?keyword=videos+de+jugadas+de+futbolistas PDF link annotation
    • https://vulabomanuxuw.weebly.com/uploads/1/3/4/8/134857085/tozulor-ximolimewojan-kekuvosi-voketis.pdfIn PDF document text
    • https://wejobufobugof.weebly.com/uploads/1/3/5/3/135348322/wajuvonaje.pdfIn PDF document text
    • https://toxisejaris.weebly.com/uploads/1/3/4/8/134851702/6960997.pdfIn PDF document text
    • https://cdn.sqhk.co/wixakulu/kwKjejd/minecraft_worldedit_sphere_tutorial.pdfIn PDF document text
    • https://cdn.sqhk.co/rifarako/aVihe1O/lumilifijijeropiraju.pdfIn PDF document text
    • https://bejixetixozivi.weebly.com/uploads/1/3/4/4/134499198/fitoxidogo.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/wyhbjcs/karivu.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/sukedil/vefikarakizoderivifur.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/57972664763.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/balanitis_treatment.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/anemia_oms_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/yugioh_duel_links_vampire_deck_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/fagosagadisoteb.pdfIn PDF document text
    • http://feniboladesa.rf.gd/20259029389.pdfIn PDF document text
    • http://zapuwoz.epizy.com/84360034795.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
    • https://images.daznservices.com/di/library/NBA_Global_CMS_image_storage/41/87/immanuel-quiIn 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_off0000d06c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD06C 5160 bytes
SHA-256: c798dc097f9f1cd52c0d7d6b06ac4e0a49966924b20b91533f319c3f88656f8d
font_01_sfnt_off0000e218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE218 11024 bytes
SHA-256: 0f9f09ff01d57f8dc0d086ae88fe813e6b65b6778be70a1290b564d5d2cae155