Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5c0cb950a2be918…

MALICIOUS

PDF

68.2 KB Created: 2021-02-26 03:17:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b158c0fcb1ab600b45ecd91308412ee8 SHA-1: 02996349fc3582410b63a4d87f1704ff36225fc4 SHA-256: e5c0cb950a2be9187b14bbd061cfccc3a86d5a25a7436dbd8cd2871e2d2748c5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wix?keyword=genetics+challenge+worksheet+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378607/normal_5fd7ccac9073b.pdfIn PDF document text
    • http://zemegulobeka.iblogger.org/duti_pata_bengali_movie_free.pdfIn PDF document text
    • https://kobalogowitat.weebly.com/uploads/1/3/0/7/130776452/bejemofora-lemiwosofiv-fadalidemuxen-vefexow.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449009/normal_5ff0b2a1b5bbe.pdfIn PDF document text
    • https://taresazafo.weebly.com/uploads/1/3/5/3/135335901/4814104.pdfIn PDF document text
    • https://tidatulo.weebly.com/uploads/1/3/2/8/132815220/rejuwugapewad-gopudene.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459640/normal_6008cc21483d4.pdfIn PDF document text
    • http://wopafopu.22web.org/bodyweight_training_anatomy.pdfIn PDF document text
    • https://turexebino.weebly.com/uploads/1/3/4/2/134265835/a9894f88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381536/normal_5fe87d24b603e.pdfIn PDF document text
    • http://kotumixevana.22web.org/60064458355.pdfIn PDF document text
    • https://zokibiruxe.weebly.com/uploads/1/3/5/3/135326092/tesus_nowuk.pdfIn PDF document text
    • http://sifamukuji.iblogger.org/wijotusilunevirunido.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461229/normal_5ff864d2a50c9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bejiteviv.epizy.com/intermediary_guidelines_it_act.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/romeo_and_juliet_1996_soundtrack_list.pdfIn PDF document text
    • http://mamesejo.epizy.com/mt_cheeseman_snow_report.pdfIn PDF document text
    • http://potimafekun.epizy.com/tojivefapunudufadosinogag.pdfIn PDF document text
    • https://s3.amazonaws.com/gopifu/mobevefegagajuboj.pdfIn PDF document text
    • http://navozilapeso.epizy.com/kress_foundation_annual_report.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_off0000d007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD007 5248 bytes
SHA-256: 2728703bb677afa0e723f3bbb365bd4f7109eb8a767d08e2009a7a52e0b474b8
font_01_sfnt_off0000e1ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1EF 9672 bytes
SHA-256: 50cac9efdd5554cb5e6af7183d4d143e50df60247ff064fa14c120039938a8b2

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