Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e5e9b5080be8c7b…

MALICIOUS

PDF

73.8 KB Created: 2021-01-27 00:45:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 129954e8665d3362076b22f75fe2ce3e SHA-1: 3a3cbb09d3b0bbcc4a31f44e8e403cec50144672 SHA-256: 8e5e9b5080be8c7bf378f530de4f6e0b911f71c43744f1763ec245749d02082a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://baarspo.ru/wb?keyword=boat%20race%20morehead%20city%20nc%202020 PDF link annotation
    • http://reduslim-buy.site/tubidy_free_mp3_downloads_for_pcbfabo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484806/normal_5fd2a9cf2017e.pdfIn PDF document text
    • https://lefawiput.weebly.com/uploads/1/3/5/3/135324435/746c35841965c89.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/D5higix/renaissance_hotel_mobile_al_spa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494891/normal_5fe9c87e112cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479214/normal_5ff8c7241de2b.pdfIn PDF document text
    • https://fidegobopoj.weebly.com/uploads/1/3/2/8/132815019/a91007775b.pdfIn PDF document text
    • http://mybatut.store/428166517459fgaw.pdfIn PDF document text
    • https://turonobofudub.weebly.com/uploads/1/3/4/4/134463989/mowerusapikapubux.pdfIn PDF document text
    • http://im-marceting.site/10888779551bkviz.pdfIn PDF document text
    • http://sdek-24.cc/drum_studio_near_mewfrxw.pdfIn PDF document text
    • https://livadasim.weebly.com/uploads/1/3/4/3/134312527/6946862.pdfIn PDF document text
    • https://sodefabufu.weebly.com/uploads/1/3/4/4/134473286/82408940.pdfIn PDF document text
    • https://zoguripan.weebly.com/uploads/1/3/1/0/131070442/parepuzaxem-linipedufaxuluk.pdfIn PDF document text
    • https://felekiki.weebly.com/uploads/1/3/4/6/134689652/nelozanofinirip_jaxadoxe_vezef.pdfIn PDF document text
    • https://sajozigita.weebly.com/uploads/1/3/0/8/130814351/papabelobuvowadu.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/ribowexulo/mijegoki.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/form_gst_rfd_01.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_off0000e446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE446 5392 bytes
SHA-256: d4f302b21e2d3f16a715b3204984bf47fd5d1da71b8e56a56962986bccd70710
font_01_sfnt_off0000f67a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF67A 10408 bytes
SHA-256: f67bca45d471b84ce6272eff96144ff4e67d1048dacb835a10b4610810506ba9

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