Malicious PDF — malware analysis report

Static analysis result for SHA-256 db11104b8fc90fdc…

MALICIOUS

PDF

73.7 KB Created: 2021-01-23 14:45:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: dce0dcddce5a6bbff90e586373b737ab SHA-1: 2c1db9f6ca3d3a9636d37b21cf177fab6bb8e46c SHA-256: db11104b8fc90fdc64cf00a1a6fc829583c80cf810000713be88ec0e2205692a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://bologen.ru/aws?utm_term=palliative+care+clinical+practice+guidelines%2528+2018%2529 PDF link annotation
    • https://cdn.sqhk.co/subogutaze/hvhhAjD/xiwukukusujibewezu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387035/normal_5fc85fa54a602.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462736/normal_5fe2436a485cd.pdfIn PDF document text
    • https://cdn.sqhk.co/mogezunir/wijggoo/country_music_videos_free_online.pdfIn PDF document text
    • https://xuxedujuwa.weebly.com/uploads/1/3/5/3/135345360/xumutuzul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459926/normal_5fcebb543e452.pdfIn PDF document text
    • http://bijopesenof.iblogger.org/manor_park_primary_school_ofsted_report.pdfIn PDF document text
    • https://jadusulad.weebly.com/uploads/1/3/4/7/134764450/3976992.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/fhhhiih/29589170691.pdfIn PDF document text
    • https://xonatusapu.weebly.com/uploads/1/3/5/3/135391421/468e0b114ab7a.pdfIn PDF document text
    • https://cdn.sqhk.co/joxesinejag/jxxhfjh/baddie_captions_for_instagram_lyrics.pdfIn PDF document text
    • http://damomemisogadex.iblogger.org/corel_draw_x5_tutorial_for_beginners.pdfIn PDF document text
    • https://site-1216916.mozfiles.com/files/1216916/google_analytics_certification_answers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://banobozibijur.epizy.com/catella_residential_report.pdfIn PDF document text
    • http://ziwilud.epizy.com/sh_cumar_faaruuq_114.pdfIn PDF document text
    • http://sikirubuguje.epizy.com/18433028050.pdfIn PDF document text
    • http://xomexopiguv.rf.gd/browallia_new_bold_italic_font_free.pdfIn PDF document text
    • http://pitupeg.epizy.com/o_baby_song_free_telugu.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_off0000df53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF53 5976 bytes
SHA-256: 7d145bc3fedf12b4c0b2c281c56fe6929659cfeb3876c510cbeeaa4667e98897
font_01_sfnt_off0000f3d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D3 11276 bytes
SHA-256: c2affb6e3002b3951233a4fe634ad807eea6dfb4d91e098f6084f1ce9d6c62ce