Malicious PDF — malware analysis report

Static analysis result for SHA-256 8367d2e8b2ac36a2…

MALICIOUS

PDF

79.0 KB Created: 2021-03-05 07:46:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 495a4b136fcc72cf99cd59833d491632 SHA-1: 4fc1d47ddad14bf46bf28e73aca85c1020fa827a SHA-256: 8367d2e8b2ac36a297a24d1cf67e7ddd3dc04634e55f500f29a1ac42a6287c7d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://zajinet.ru/wix?keyword=how+to+linearize+a+curved+graph PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4376101/normal_6007bf9358821.pdfIn PDF document text
    • https://pazerutafu.weebly.com/uploads/1/3/5/3/135392620/6486477.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/kepofowu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423757/normal_601f20402a448.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401694/normal_5ff96f46637de.pdfIn PDF document text
    • http://kiritisivasol.mywebcommunity.org/philips_series_5000_replacement_shaver_head_boots.pdfIn PDF document text
    • http://mediaverifiedbadge.com/lifunixulixegezbahvw.pdfIn PDF document text
    • http://sewawena.scienceontheweb.net/lg_refrigerator_service_centre_in_mehsana.pdfIn PDF document text
    • http://dawexefif.getenjoyment.net/nisofokolatapigabibalul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475208/normal_5fc9cb81cf2fe.pdfIn PDF document text
    • https://viwosakizipisot.weebly.com/uploads/1/3/5/3/135321869/dulani.pdfIn PDF document text
    • http://yblda.fun/53164115522ghs50.pdfIn PDF document text
    • http://itwow.info/job_interview_questions_for_candidates_to_ask_employerse8hpy.pdfIn PDF document text
    • http://fofiwafajelerax.sportsontheweb.net/58083240193.pdfIn PDF document text
    • http://pet-guru.shop/how_to_get_starbucks_partner_discount_on_mobile_orderznwuf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390383/normal_602ea08813431.pdfIn PDF document text
    • http://dikegebe.mygamesonline.org/87156110663.pdfIn PDF document text
    • http://wowitaly.space/76175695137ub779.pdfIn PDF document text
    • https://sazoxizifa.weebly.com/uploads/1/3/4/5/134505384/2381756.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://c2093f15-f4fb-4bda-9582-db5404103fa6.filesusr.com/ugd/b28561_378517004a564561adf424e3eadfaac4.pdf?index=trueIn PDF document text
    • https://4eb3a9b5-ca6a-4b2a-896e-878abc754f3b.filesusr.com/ugd/f1ab86_4d6ed2fe873949d699c4d2e04e9c8439.pdf?index=trueIn PDF document text
    • https://5e9c932d-19a8-4d5a-a970-d4bc0bcb832b.filesusr.com/ugd/bae0a0_b373d9ffb82f4cf28922fa3f2c07e001.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eaca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEACA 5204 bytes
SHA-256: 56bf27bacc88ac562c12aad28125edbb64b49bc3a0aed2d4d8252196753a3b3a
font_01_sfnt_off0000fc8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC8F 10412 bytes
SHA-256: 6947a58a42684ee3e5f2de02255d36eda6977d00c659d83a28a1a5c82061cd7f
font_02_sfnt_off0001203e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1203E 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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