Malicious PDF — malware analysis report

Static analysis result for SHA-256 b098e46304d2b3c0…

MALICIOUS

PDF

69.1 KB Created: 2021-02-22 23:22:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b75ca88afe016ed1328b6918716a9051 SHA-1: e55c9488a047f0e367d6593bb8502422daf27ab8 SHA-256: b098e46304d2b3c018429e0342e8ca7ce8b1e812a39037eb2ed119407c23510e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=funai+sv2000+vcr%252Fdvd+recorder+manual PDF link annotation
    • https://samoderusewon.weebly.com/uploads/1/3/1/3/131383586/ef12ff8f9.pdfIn PDF document text
    • http://besuxiju.22web.org/92642747282.pdfIn PDF document text
    • https://noxijinijomud.weebly.com/uploads/1/3/4/7/134746703/3130f82414da0.pdfIn PDF document text
    • https://kunolutupevuj.weebly.com/uploads/1/3/4/7/134772201/6497047.pdfIn PDF document text
    • https://xoxudepibedewem.weebly.com/uploads/1/3/5/3/135317482/funerewemila.pdfIn PDF document text
    • https://cdn.sqhk.co/vopiruwikil/gdXig4E/instant_word_search_maker_free_online.pdfIn PDF document text
    • https://lapadodipelij.weebly.com/uploads/1/3/1/1/131164402/jinobuzi.pdfIn PDF document text
    • https://buzijivugaza.weebly.com/uploads/1/3/4/7/134709386/wadevewup_lurejujuxowi.pdfIn PDF document text
    • https://fuvekusegubo.weebly.com/uploads/1/3/4/7/134736786/nirimujires.pdfIn PDF document text
    • https://verigidiloje.weebly.com/uploads/1/3/0/8/130874422/fijosisigefig.pdfIn PDF document text
    • https://vadiwolor.weebly.com/uploads/1/3/4/7/134737839/8758552.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378641/normal_5fd959a43f7e5.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/napoledunadigo/aggregate_crushing_value_test_report.pdfIn PDF document text
    • http://gelidug.epizy.com/je_vous_tiendrai_inform_en_anglais.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_off0000d262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD262 5408 bytes
SHA-256: ef894ce8fb70b6d1876bf0bd0c209ea7df2bde7bbc818e49c9d6c266c66bd8d6
font_01_sfnt_off0000e4be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4BE 10184 bytes
SHA-256: 90f207c8a0873e130e0f65093cb1770683d2f8cfc4850f2477e7f08052a61b61