Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d4666af0857f89d…

MALICIOUS

PDF

70.1 KB Created: 2021-02-07 12:38:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 18544710072cac1420c581d988ee90e8 SHA-1: 09021e1fdf88d3287f6964a5b50f3b2037f69496 SHA-256: 1d4666af0857f89dde69f5fab499a9b9043b2cf694f5c03ad724c863b66226b3
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://druttle.ru/wb?keyword=kuiu%20guide%20gloves%20for%20sale PDF link annotation
    • https://cdn.sqhk.co/javomekoru/cpqsjiS/tupexepozofatamowuniv.pdfIn PDF document text
    • http://laulu-go.ru/curso_de_html5_y_css_free_downlondloe.pdfIn PDF document text
    • http://helps-lnstagramcopyrights-about.com/bedava_dizi_indirme_siteleri9jvgf.pdfIn PDF document text
    • http://mamontov-net.cc/16692054819aryv2.pdfIn PDF document text
    • http://homiak.fun/lemenevetofaxowuxhrwiy.pdfIn PDF document text
    • http://mists.space/mifinonedwu2d.pdfIn PDF document text
    • http://remontvorot24.com/gasoline_tank_truck_emergencies_guidelines_and_proceduresp7hb3.pdfIn PDF document text
    • http://kekebum.22web.org/gawozovewitexorotapi.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/hKjciab/learn_pointe_ballet_at_home.pdfIn PDF document text
    • https://cdn.sqhk.co/derubejes/hBTMQgA/tamil_nursery_rhymes_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/pufojoloz/jjghigi/retro_furniture_warehouse_london.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://taxisariwoboduz.epizy.com/kaspersky_antivirus_2019_apk.pdfIn PDF document text
    • http://tugojolowok.epizy.com/25630282983.pdfIn PDF document text
    • http://budunasetixap.epizy.com/physical_regions_of_canada_worksheet.pdfIn PDF document text
    • http://xitutudatiri.epizy.com/rinewijejulo.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_off0000d64a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64A 5104 bytes
SHA-256: 6e7ae32fd9b53b668232d868c9aad1fa1d0b011b4cd8b2ac65585dc88fec2504
font_01_sfnt_off0000e7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C9 10532 bytes
SHA-256: c9fb642a53fa851a3975d09a05b6be6180f0ad254995674da719c48db2068375