Malicious PDF — malware analysis report

Static analysis result for SHA-256 8eedf7a50e6209fd…

MALICIOUS

PDF

82.1 KB Created: 2021-04-03 05:50:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: d1b899fae88d3855ebc73f37fe6c0d83 SHA-1: c50e420306a00c920dd7b89ddedfba88ac887d7d SHA-256: 8eedf7a50e6209fdd02be40ac57e30d44dd032172ef38991d1a8b4fd53b362e1
126 Risk Score

Malware Insights

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

The PDF contains a deceptive title and numerous links, many hosted on disposable domains, suggesting a phishing or link-farming attempt. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution via the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://soxebez.ru/strik?utm_term=did+the+stock+exchange+close+early+today PDF link annotation
    • http://onlinetiser.website/diagrama_de_flujo_significado_de_los_simbolost2855.pdfIn PDF document text
    • http://glossywp.online/81016431644qykdf.pdfIn PDF document text
    • http://doresal.22web.org/67849742627.pdfIn PDF document text
    • http://pusolaxunu.66ghz.com/commercial_invoice_export_template.pdfIn PDF document text
    • http://top-salez.site/rusewuxabavija5w2zz.pdfIn PDF document text
    • http://japancar-sib.ru/concordancia_exhaustiva_de_la_biblia_james_strong96yj5.pdfIn PDF document text
    • http://vegifeda.mypressonline.com/andrographis_echioides.pdfIn PDF document text
    • http://roskycnmx.com/royal_family_dance_crew_song_list_20189ox2j.pdfIn PDF document text
    • http://jabewes.medianewsonline.com/how_to_determine_shotgun_shot_size.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d44066b-a884-4db2-9b00-0b2314a691ad/getafekojavumokuvafazez.pdfIn PDF document text
    • http://lepamiruketujuf.epizy.com/76691989047.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e09a66bc-0fa1-4fab-8ee3-af339bced193/sony_bdp-s1500_connect_to_internet.pdfIn PDF document text
    • http://rizinesuri.epizy.com/nisemomanilekuwifiwinaj.pdfIn PDF document text
    • http://tibobabinenan.epizy.com/kayla_itsines_nutrition_guide_free_download.pdfIn PDF document text
    • http://lomonogugala.epizy.com/the_dot_by_peter_reynolds_discussion_questions.pdfIn PDF document text
    • http://kemesid.onlinewebshop.net/moneluvirekapozifinilawe.pdfIn PDF document text
    • http://sobajagas.rf.gd/tonerax.pdfIn PDF document text
    • http://mejavifoxeb.rf.gd/60361060780.pdfIn PDF document text
    • http://bosapaw.rf.gd/70254707321.pdfIn PDF document text
    • http://wuzegez.epizy.com/bomemel.pdfIn PDF document text
    • http://zijurape.atwebpages.com/cumulative_frequency_questions_and_answers.pdfIn PDF document text
    • http://xanuvajunozim.epizy.com/dowry_prevention_act.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bafd8ac-1cea-46fa-91b9-86c2b9e25962/is_black_forest_ham_healthy.pdfIn PDF document text
    • http://venuburut.rf.gd/23699042048.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbd6402a-a2e8-42cc-9cbe-13d0e8912741/chocolate_miniature_dachshund_for_sale.pdfIn PDF document text
    • http://losalevova.epizy.com/aashto_technical_manual_for_design_and_construction_road_tunnels.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/898725e5-fc25-4a29-8e85-79b8dcfb74d1/what_are_newtons_first_3_laws_of_motion.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_off000101c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101C4 5432 bytes
SHA-256: b3d261eb3a2a09774b6311b738336bb66406f409fdc23458e70058aacbe4f8e1
font_01_sfnt_off0001144b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1144B 11288 bytes
SHA-256: 35474f8f54cceb1864b89cea0fa1fd3465bc4a712d9f6c992e1b8f03253331fe