Malicious PDF — malware analysis report

Static analysis result for SHA-256 f03074dcf4d4d9b7…

MALICIOUS

PDF

71.9 KB Created: 2021-02-27 00:08:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6a8a37df3f5c78b528de28e7a908d453 SHA-1: 945590a26bef204426659ad252f8271461b71e57 SHA-256: f03074dcf4d4d9b726cffc1a3e56fb2b1bc9f9e17f8d3392dd0c843ae5cfac8c
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/123?utm_term=berserk+manga+deluxe+edition+volume+4 PDF link annotation
    • https://cdn.sqhk.co/vitozogog/janhgKu/56790322260.pdfIn PDF document text
    • http://zanartcc.net/655052081307m54m.pdfIn PDF document text
    • http://xumimoz.22web.org/animoto_software_for_pc.pdfIn PDF document text
    • http://numulul.mygamesonline.org/best_james_patterson_book.pdfIn PDF document text
    • https://cdn.sqhk.co/teduwugevoki/jip8jb2/cute_pocket_cat_3d_part_2.pdfIn PDF document text
    • https://cdn.sqhk.co/buxifuludo/ibbjdWT/55912683810.pdfIn PDF document text
    • http://genoray.pro/15036341810x66s1.pdfIn PDF document text
    • http://kigazuvunawolux.iblogger.org/18909467723.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/dalava/la_republica_platon_libro_7.pdfIn PDF document text
    • http://wijuromosumeko.rf.gd/sisezaz.pdfIn PDF document text
    • https://s3.amazonaws.com/lovomijelun/adobe_dreamweaver_cs3_free_filehippo.pdfIn PDF document text
    • https://s3.amazonaws.com/sogovekevi/yew_tree_primary_school_solihull_ofsted_report.pdfIn PDF document text
    • http://sufefifa.rf.gd/fuwotamowawababagowafejen.pdfIn PDF document text
    • http://kolenexe.epizy.com/13101550782.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/boramupibogiwe.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_off0000dd8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8A 5472 bytes
SHA-256: 06ba0126e9dc7f763554327dbf16491123b88fbcf5c5147e78cf49d3365b5f72
font_01_sfnt_off0000f020.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF020 10112 bytes
SHA-256: 25d0455f60a46ca19d65fbb543c7d211930249b80339339e424673ae08b1aac6