Malicious PDF — malware analysis report

Static analysis result for SHA-256 7182457491659017…

MALICIOUS

PDF

79.6 KB Created: 2021-03-10 23:03:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 03ccb71ca5a2921535d466a2534562f0 SHA-1: 626c9c247dd5639b9b4a9b4ca1916ef060b8c14c SHA-256: 7182457491659017ff96c02ebba6ddf98ae0c451eb309902d54bd3789db32e72
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable domains and are likely part of a link farm designed to redirect users to malicious content. The primary malicious URL identified is https://mezovuduw.ru/aws, which is presented with a deceptive query parameter related to Wi-Fi connection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://mezovuduw.ru/aws?utm_term=lg+bh5140s+wifi+connection PDF link annotation
    • http://jewuzalozegeso.iblogger.org/jatadiperari.pdfIn PDF document text
    • http://tumbaa.space/walumaxuxomosalunusawasugw4uw.pdfIn PDF document text
    • http://tixshopclub.fun/gafapaf6awhh.pdfIn PDF document text
    • http://qrettalq.online/391375212605ootq.pdfIn PDF document text
    • http://ninijefaligogi.mygamesonline.org/kern_cardiac_catheterization_handbook.pdfIn PDF document text
    • http://xovonakajo.22web.org/route_of_drug_administration_download.pdfIn PDF document text
    • http://tesubozapo.22web.org/who_moved_my_cheese_book_questions.pdfIn PDF document text
    • http://whalesqpa.fun/rupefuvoluqtx7s.pdfIn PDF document text
    • http://socialwave.me/zejurusezavamijetufuv5klqo.pdfIn PDF document text
    • http://nelezoroga.22web.org/how_to_draw_a_christmas_tree_easy_peasy.pdfIn PDF document text
    • http://lazirog.mywebcommunity.org/what_causes_a_battery_light_to_come_on.pdfIn PDF document text
    • http://gafaneripebenu.iblogger.org/bazozijoxidadujuw.pdfIn PDF document text
    • http://maxist.ru/nijonixeehzl.pdfIn PDF document text
    • http://afracheat7.xyz/maaza_agadbam_2_full_movieszc4e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://wijogural.epizy.com/najalozatofeke.pdfIn PDF document text
    • http://vofopinalog.epizy.com/que_es_el_balance_de_materia.pdfIn PDF document text
    • http://raredinufewota.epizy.com/36966546932.pdfIn PDF document text
    • http://zifojaxi.rf.gd/jack_reacher_never_go_back_full_movie_youtube.pdfIn PDF document text
    • http://duvodix.myartsonline.com/periodic_table_trends_test.pdfIn PDF document text
    • http://lubozogemodusa.epizy.com/xitajarorusugota.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/harlan_ellison_terminator_outer_limits.pdfIn PDF document text
    • http://rubuvajaroxe.epizy.com/template_ppt_tumblr_free.pdfIn PDF document text
    • http://rudurugineme.epizy.com/detergent_sheets_where_to_buy.pdfIn PDF document text
    • http://leliruwe.epizy.com/antonyms_english.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB06 5172 bytes
SHA-256: c54dfe35eb61ee200555967de7d05a0f59658de47d0f862b3c0f877f04b08970
font_01_sfnt_off0000fcbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCBC 11108 bytes
SHA-256: 172da2fc1091b46b7e986d2b606f8c6644db4521199d7d13a939502f2f41a32b
font_02_sfnt_off000122b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122B1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.