Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c87656d75584d06…

MALICIOUS

PDF

71.8 KB Created: 2021-02-25 18:44:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 08b48e6fc9077885805472d6b0edcd8b SHA-1: b969e545b70cec5a32cb8210b1205e8d98c4ba0a SHA-256: 4c87656d75584d06f1ac6562a95383da3be438c2bd6f7928d2381e81832b8b7b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/wix?keyword=shermag+glider+parts PDF link annotation
    • http://copyrightprivacy.site/wexofezujidibq3zo.pdfIn PDF document text
    • http://bioforce-co.site/192894175185cox6.pdfIn PDF document text
    • https://cdn.sqhk.co/kokojisip/ih0XBxn/evacuated_solar_tubes_alibaba.pdfIn PDF document text
    • http://interbank.link/kobadimelodbtlo0.pdfIn PDF document text
    • https://cdn.sqhk.co/mizogujuzo/ggiipKT/gajivonebusiwese.pdfIn PDF document text
    • http://ruzopiter.iblogger.org/vandana_shiva_soil_not_oil.pdfIn PDF document text
    • https://zurukuwimuso.weebly.com/uploads/1/3/4/3/134325804/3249947e06b7f62.pdfIn PDF document text
    • http://fajutixosisi.22web.org/86849734527.pdfIn PDF document text
    • http://hytri.com/microsoft_dynamics_365_manuale_italianovouk3.pdfIn PDF document text
    • http://vseti.life/android_google_assistant_turn_offftois.pdfIn PDF document text
    • https://jijoforupet.weebly.com/uploads/1/3/4/8/134864875/fa72f37c410808.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/nib9Zhj/merchant_bankers_legal_definition.pdfIn PDF document text
    • https://xaziribubeka.weebly.com/uploads/1/3/4/3/134397614/7185804.pdfIn PDF document text
    • http://kesilub.iblogger.org/dagupusef.pdfIn PDF document text
    • http://natomazadikomiz.iblogger.org/alphabet_review_worksheets_preschool.pdfIn PDF document text
    • https://cdn.sqhk.co/busunava/gg1jbgc/booking_revolution_pro_apk_free_download.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/dedinavesute/scuola_alberghiera_formia_convitto.pdfIn PDF document text
    • https://s3.amazonaws.com/somisilegex/premiere_pro_2020_keyboard_shortcuts.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/standard_equation_of_circle_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/medical_certificate_civil_service_form_211.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_off0000daba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDABA 5476 bytes
SHA-256: 10eb37865a084de29f68281f279ce84232bc4e4cea80d07ce97e61bbfae5e5c2
font_01_sfnt_off0000ed22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED22 10708 bytes
SHA-256: d914f488613001280dea9f506fe9545fcb3c06847b830d7dbc5599762922260c