Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae84f018f125315b…

MALICIOUS

PDF

70.3 KB Created: 2021-02-28 02:28:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f4c51ef7277db9e90e45924fe99c0223 SHA-1: 00c03b4244a4a9f828d95bf5f8ffefab212d16c0 SHA-256: ae84f018f125315b1dc301af455a8f80752e946a19bdfb123f5fc0f1d39653fa
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://gimoguvi.ru/award?keyword=dark+souls+3+wallpaper+4k+phone PDF link annotation
    • https://subokolabipu.weebly.com/uploads/1/3/2/3/132303028/veritekunolaniresefe.pdfIn PDF document text
    • https://kufojomarolov.weebly.com/uploads/1/3/4/4/134401526/2527fdfd2b8df.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/toto_aquia_iv_washlet_s550e_review.pdfIn PDF document text
    • https://befugusugub.weebly.com/uploads/1/3/2/6/132683140/roguwelarupuxo_rozikexukiwa_keduto_korupesutoj.pdfIn PDF document text
    • https://zajuzuvo.weebly.com/uploads/1/3/4/4/134474050/8916709.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368752/normal_6017201845f1e.pdfIn PDF document text
    • https://gozaxuvo.weebly.com/uploads/1/3/4/6/134612917/6732885.pdfIn PDF document text
    • http://zumewidife.mygamesonline.org/acordes_de_piano_posiciones.pdfIn PDF document text
    • http://miwewumexurigan.sportsontheweb.net/3046320659.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450350/normal_5fe51a508bd4b.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/veraxawewib/6973701540.pdfIn PDF document text
    • http://tuwawolaninezon.epizy.com/paxaf.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/15461427171.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/tefemilodasomedaxare.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/medium_voltage_circuit_breaker_selection_guide.pdfIn PDF document text
    • http://jokubizipapazor.epizy.com/recoleccion_de_datos_en_una_investigacion.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_off0000d908.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD908 5316 bytes
SHA-256: 2a76de0d6461f1f50616863844154a0983606d98a9be42fc6c9a450c4b83accd
font_01_sfnt_off0000eb36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB36 9656 bytes
SHA-256: cc9bafa587b7debe2b7b25d68c25487ba6873accfe8abf31e0f4d10bc51d1cf6