Malicious PDF — malware analysis report

Static analysis result for SHA-256 65b632684ff75c58…

MALICIOUS

PDF

65.4 KB Created: 2021-02-25 20:44:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f7e67cbf964449107c9af00ac47e5c75 SHA-1: c0ea4bbbb13f5da1f10666abc720be26476eb9da SHA-256: 65b632684ff75c58f790c7fba812c2ce2d56d986acf5befd09e466ec9ed3593b
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://druttle.ru/award?keyword=star+wars+age+of+the+republic+read+online PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4422386/normal_5fdf896bb1dcf.pdfIn PDF document text
    • https://wetolobumusu.weebly.com/uploads/1/3/4/5/134579125/vemuguzezotomo_bubumixema.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462376/normal_5fda2ffcd04a4.pdfIn PDF document text
    • http://nokasosozigof.mypressonline.com/40584273794.pdfIn PDF document text
    • https://beretukajawedu.weebly.com/uploads/1/3/4/7/134713042/6676403.pdfIn PDF document text
    • https://wotawodakel.weebly.com/uploads/1/3/5/3/135316359/f822b2683157.pdfIn PDF document text
    • https://lurofigugibax.weebly.com/uploads/1/3/4/6/134686006/jiwumifonidebas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387243/normal_6032c690865a5.pdfIn PDF document text
    • http://nogurufegu.mygamesonline.org/67184025281.pdfIn PDF document text
    • http://ziwigosopijulal.mygamesonline.org/85548765177.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/wavunot/aur_pyar_ho_gaya_movie_480p.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_off0000c28e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC28E 5752 bytes
SHA-256: 07905b6e168f909796ff73d6afb4c7f013b4abb560279326ce311bb89d22893e
font_01_sfnt_off0000d62b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD62B 10164 bytes
SHA-256: e3e0be715ab583fc9c3428883eca59fe00604b5e35b95fe4a6f8b9761cd75c65