Malicious PDF — malware analysis report

Static analysis result for SHA-256 50d755c4a3d3f754…

MALICIOUS

PDF

79.0 KB Created: 2021-02-07 03:19:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7621d1b527bf5945cad152cf16de2130 SHA-1: 85d1e870be5c85f3ec94bb3c5ef693d1a3f0aa2e SHA-256: 50d755c4a3d3f7547124657a9efc4ebe62b1947ddde65603c406e6c6f2bcc7cc
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://maypoin.ru/aws?utm_term=bimetallic+strip+worksheet+answers PDF link annotation
    • http://suzaxikuzexaw.66ghz.com/my_talking_tom_mod_hack.pdfIn PDF document text
    • http://tiktokfrance.fun/dokanofiwikivurejibimetp8tt.pdfIn PDF document text
    • http://design-kvartira.info/juegos_de_crazy_zombie_6._0_y89caks.pdfIn PDF document text
    • http://detomebokiv.iblogger.org/gilopa.pdfIn PDF document text
    • http://bimolomazija.22web.org/carotid_artery_stenting_guidelines_aha.pdfIn PDF document text
    • https://cdn.sqhk.co/wavudasawete/7gggigg/elder_scrolls_online_buy_alchemy_ingredients.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jatuxijor.epizy.com/gejarajididujapuxemafa.pdfIn PDF document text
    • http://mamisiz.rf.gd/50564936434.pdfIn PDF document text
    • http://xumomevafuvozup.rf.gd/resultant_force_diagrams_worksheet.pdfIn PDF document text
    • http://taluzeze.rf.gd/ketogenic_girl_meal_plan.pdfIn PDF document text
    • http://gigezevozaf.epizy.com/bloomberg_market_concepts.pdfIn PDF document text
    • http://memaded.epizy.com/meeting_agenda_and_minutes_template.pdfIn PDF document text
    • http://kebowikosu.epizy.com/apsc_education_syllabus.pdfIn PDF document text
    • http://webekilijonelew.epizy.com/odia_new_movie_song_video_free.pdfIn PDF document text
    • http://faxumev.epizy.com/zapoxumuzarozimanudunajug.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_off0000ec38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC38 5380 bytes
SHA-256: 50b89dda23c8d0acb977cf18a82a0041ab1d36fafcf17d7e5fc49adc33273565
font_01_sfnt_off0000fe66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE66 15624 bytes
SHA-256: dd2c030a103ab3742f0618753fb10bf457e5c8fca03f7866dbf51a17d44f91b4