Malicious PDF — malware analysis report

Static analysis result for SHA-256 072b7f2551e0d262…

MALICIOUS

PDF

74.9 KB Created: 2021-02-28 22:53:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2db6d4eadac71dd238136d065fdb7c66 SHA-1: 5b1587baa1b3d31ea88c12a611ee1a3a0b0b9264 SHA-256: 072b7f2551e0d262c4afde2e5d4605b5853c4c258becd8574c2302ab3b6d779b
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://pelibifir.ru/award?keyword=does+dish+voice+remote+work+with+alexa PDF link annotation
    • http://kieverts.xyz/vugemulejotafs5y0x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481825/normal_60075dc423d97.pdfIn PDF document text
    • http://microbestdigitalmeter.xyz/58075288987l1l40.pdfIn PDF document text
    • http://fejekadiwoxobiz.getenjoyment.net/87324035251.pdfIn PDF document text
    • http://topcreditscore.info/interview_questions_for_parents_of_students_with_disabilitieslagog.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421049/normal_60058aaf6b34c.pdfIn PDF document text
    • http://abzac.me/family_members_pictures_worksheetsvso6g.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/fuwuzerijofa/tibukafubilidubevafarudix.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/cousins_malayalam_movie_theme_song.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/ardaas_karan_full_movie_mr_jatt.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/pizuj.pdfIn PDF document text
    • http://pojozija.onlinewebshop.net/netgear_ac1600_modem_router_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/fujifilm_finepix_s1800_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/nurujofababulobidur.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/party_with_bhoothnath_song_pagalworld._io.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/cual_es_la_diferencia_entre_educacion_civica_y_educacion_ciudadana.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/counting_money_worksheets_dimes_nickels_pennies.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/capacitor_value_calculator_apk.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_off0000e5e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E6 5464 bytes
SHA-256: 6feed7b6bfab4ff41fef79e7181ab8cb38eeebb0da1e9186eeae8e3afe7afb53
font_01_sfnt_off0000f867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF867 11240 bytes
SHA-256: 6cf3795ccf24610c615bb78797d22311a9b82b24c64b230c90f1085ee4298cc6