Malicious PDF — malware analysis report

Static analysis result for SHA-256 89e80e9358ede3f6…

MALICIOUS

PDF

73.2 KB Created: 2021-03-06 18:02:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bdbb30f623bdaa26cddcfa483af4969c SHA-1: d01e07bef083945679a9eaf6bbdb23742198a11b SHA-256: 89e80e9358ede3f614724c085c10d2c21d5a04841248c2b28e39aec39649d5fd
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://dugedepap.ru/award?keyword=samsung+525d+manual PDF link annotation
    • https://cdn.sqhk.co/febenanedibu/lgcjcdV/76582007925.pdfIn PDF document text
    • http://update-win20.online/95462374646zg647.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462351/normal_5fd05dda9313d.pdfIn PDF document text
    • https://cdn.sqhk.co/modonasuje/EbgijPg/19281126518.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489257/normal_5ffd36d585294.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393033/normal_603803da862ec.pdfIn PDF document text
    • https://cdn.sqhk.co/jabuvilir/ctdjaXk/91374323489.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501645/normal_5fd5f5346a324.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462374/normal_6038d76670063.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502500/normal_5fed2f0f15795.pdfIn PDF document text
    • http://snail-case.store/word_365_character_count3oiv3.pdfIn PDF document text
    • https://cdn.sqhk.co/kekoseni/fo8Ohex/image_to_video_movie_maker_app_download.pdfIn PDF document text
    • https://cdn.sqhk.co/gusisitixinu/XigijCa/kanim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388162/normal_60352dd066f2b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6eed613e-cbae-405e-b458-9655ef9033f8.filesusr.com/ugd/e4f6f0_f88f0958e5af45d2b1af18518c19f455.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/76840aee-05b0-4feb-9649-61ab67e24293/american_colonies_alan_taylor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc1265df-1f7e-40f0-910e-0a1ed3516d11/princess_diaries_2_wedding_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1e41b38-b844-463b-9150-fc7fcf9d0c05/datixurujokovedoj.pdfIn PDF document text
    • https://c2093f15-f4fb-4bda-9582-db5404103fa6.filesusr.com/ugd/b28561_79ed1be4f2194b82953a80305e2659c1.pdf?index=trueIn PDF document text
    • https://68358877-4ee6-4e53-94f7-4bd9665c1f53.filesusr.com/ugd/3bbd68_6973ff84a45e4512afcbe00597b67156.pdf?index=trueIn PDF document text
    • https://58552d80-c20c-4e4f-99b9-91bedbcc07a3.filesusr.com/ugd/c18496_9f27272ae8d64a39a2b6ef77e43a808e.pdf?index=trueIn PDF document text
    • https://874c0fd6-92eb-497b-905f-dc7ca4d2e287.filesusr.com/ugd/5ca7d4_f2813d607f334e199fbaf86943fedba2.pdf?index=trueIn 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_off0000df2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF2E 5408 bytes
SHA-256: 1fcf77b841f70dddd2a6f7bd78a97e23f70ce8185c3bc4d244ab1e1e48aa6d34
font_01_sfnt_off0000f185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF185 10900 bytes
SHA-256: a55f227e7c5f749c45416614206ad7abfaf920a76cb5d86563d6877a6cd29a13

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