Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cc2badd354511d7…

MALICIOUS

PDF

67.3 KB Created: 2020-11-24 16:24:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 3256fc0b2468fc98ca2f16b4e7daceb7 SHA-1: 1f2eb0fa267b7ab2aa3191b26025d1b16fc04e1f SHA-256: 0cc2badd354511d71972adc29b40fbf955a11c78cc6a78c59913687fdba43687
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/wb?keyword=prioritization%20delegation%20and%20assignment%204th%20edition%20pdf PDF link annotation
    • https://bivojivowuru.weebly.com/uploads/1/3/4/7/134726538/xadakeb.pdfIn PDF document text
    • https://gabofulonu.weebly.com/uploads/1/3/4/7/134730366/6d3ecfe1c3dac6.pdfIn PDF document text
    • https://vuvofazomegudej.weebly.com/uploads/1/3/4/3/134329778/noveziz.pdfIn PDF document text
    • https://kisimerib.weebly.com/uploads/1/3/4/6/134697331/xagavowifoja.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408702/normal_5fb62931d0bac.pdfIn PDF document text
    • https://welofubevi.weebly.com/uploads/1/3/1/8/131856084/962da95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367290/normal_5f9a14196b142.pdfIn PDF document text
    • https://bavibexovapow.weebly.com/uploads/1/3/4/6/134643610/lumegikigikewup.pdfIn PDF document text
    • https://nebomigefut.weebly.com/uploads/1/3/4/3/134359696/74459.pdfIn PDF document text
    • https://namukizup.weebly.com/uploads/1/3/4/7/134748015/156724.pdfIn PDF document text
    • https://xibogunef.weebly.com/uploads/1/3/1/3/131398295/dagegafigiz_vobogaduv_xopused.pdfIn PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/fezenaga-dajedozafod-jikedafetudike-julureje.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cdd1c06-aa9c-4307-99b1-031801850fcd/supivadotozadeluto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1036a6b-79e9-47f6-8012-a355d73ab235/divoom_voombox_travel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8dda40c6-6d60-4b5e-92b8-32964bd8dc0e/zidikemumoboritoga.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_off0000c952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC952 5596 bytes
SHA-256: ae5c22e4b10cfccfd0b443cd4f9c3d607ec504e46228caa54e6bfd6a62a93637
font_01_sfnt_off0000dc40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC40 10520 bytes
SHA-256: 07a103b297960551498bdc9028e7775923c11b235610c5c3ff69a4a479329cbc

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