Malicious PDF — malware analysis report

Static analysis result for SHA-256 df121dd0ab87b1e2…

MALICIOUS

PDF

72.3 KB Created: 2021-02-23 17:40:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7d2ab29d23abb3f45eaf88b82139c3e6 SHA-1: 4046b6ca35c30c70e8589496aadb95429eb7038b SHA-256: df121dd0ab87b1e2a29f4e4b597d7ab9a33197c70de98fcf7e1fbd2e92b41cc6
136 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
  • 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.
  • 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://seumenha.ru/123?utm_term=ge+4+device+universal+remote+roku PDF link annotation
    • http://specrazreshenie.com/gekabadogvaz7k.pdfIn PDF document text
    • https://cdn.sqhk.co/kokademesuz/j1gcdjg/xunese.pdfIn PDF document text
    • http://nevodoma.iblogger.org/zufesatosuwewuzurusododi.pdfIn PDF document text
    • https://cdn.sqhk.co/doxinotilid/eShi0PJ/voralenurelixeripoxusikem.pdfIn PDF document text
    • https://cdn.sqhk.co/vimewiki/hghOWvO/59161775221.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/jasipefulaxiduj/kimaxogoxap.pdfIn PDF document text
    • http://kunesapog.epizy.com/a4_14_label_template_word.pdfIn PDF document text
    • http://kizuxaw.rf.gd/30153267637.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/employee_engagement_survey_report.pdfIn PDF document text
    • http://mudotepejix.epizy.com/sugozuwukumesujejinek.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/life_after_death_stories.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/plan_de_estudios_2011_guia_para_el_maestro_segundo_grado.pdfIn PDF document text
    • http://safefimij.epizy.com/string_format_number_2_decimal_places_c.pdfIn PDF document text
    • http://mifevup.rf.gd/gikijaxovaliwom.pdfIn PDF document text
    • http://luvewon.epizy.com/komekozikinubelu.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_off0000df0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0C 5328 bytes
SHA-256: f36d2387de94de5ca224600b46d59f0b994987eaf73f16beebc32f833d9b7a52
font_01_sfnt_off0000f129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF129 10312 bytes
SHA-256: 2a2cd7c08092a49a6bf4c79215bbf55cd6cd7d9fe52f94e460d8eccfa170334b