Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb351d1486545af1…

MALICIOUS

PDF

77.0 KB Created: 2021-02-24 08:56:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ddbe06fbd8a03ef9d649fbf774d7cdf4 SHA-1: 8ff3f85d85eb46ce562fd37a234d747c85b5a57c SHA-256: eb351d1486545af1aaf397cb30ab3ea0bed664d9c1684cbe4a5bf1e7f910fcdc
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/strik?utm_term=super+metroid+25th+anniversary PDF link annotation
    • http://mx50off.info/how_to_adjust_brightness_in_calculatorvbsq0.pdfIn PDF document text
    • http://mavpa.fun/11526126401cl5vv.pdfIn PDF document text
    • https://cdn.sqhk.co/juxerawabuf/VjfhdrY/bridge_constructor_portal_all_achievements.pdfIn PDF document text
    • http://gaydating.world/active_and_passive_voice_upper_intermediate_exercises1feri.pdfIn PDF document text
    • http://govnosiakxws.online/turbo_manual_de_guitarra_elctrica_descargar_gratiss0ta3.pdfIn PDF document text
    • http://segway-wheelchair.ru/23542420984driu9.pdfIn PDF document text
    • http://idealslim-italiaoficial.site/what_does_phthalo_green_look_likeac7us.pdfIn PDF document text
    • http://pek-24.cc/el_sitio_de_leningradofblw8.pdfIn PDF document text
    • https://cdn.sqhk.co/kifuzopeko/jcCgeid/78893048306.pdfIn PDF document text
    • http://fotonagosuslugi-01.space/cacharreria_e_cristaleria_universalak1on.pdfIn PDF document text
    • https://cdn.sqhk.co/rolidazi/dhjjfhj/vobuweruritagu.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/ggeidie/28352640281.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/wipotegadodorek/56350141814.pdfIn PDF document text
    • https://s3.amazonaws.com/dujepav/muzedotexelejevezikopidij.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/6684140844.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/equations_worksheet_chemistry.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/ap_eamcet_hall_ticket_2019_manabadi.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/18688791231.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/53067107611.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/can_you_get_old_movies_on_amazon_prime.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_off0000f003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF003 5688 bytes
SHA-256: 82b7c3aa998614cc253fbeb7bf4a7d7bdd8440984d2b2827c1e9cf8f17e3f3d4
font_01_sfnt_off0001033e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1033E 10344 bytes
SHA-256: c510ef7617131ec85923f5b5294d8fcf07e4641a6fe89426b95e839e5b026852

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