Malicious PDF — malware analysis report

Static analysis result for SHA-256 03a37a968d605a6b…

MALICIOUS

PDF

65.4 KB Created: 2021-02-17 15:43:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: bba2237abaea64ed6d095044f799e95f SHA-1: ef12e2cc18ecd3b2bfd483949e3d9bfd66b64ce6 SHA-256: 03a37a968d605a6b7d2a26d017d541cf5a8f819e2ed10455aff7605c01055bfd
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/123?utm_term=wildgame+innovations+mirage+18+setup PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4499979/normal_60005eecc7c11.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485450/normal_5fd949fc5afd8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413707/normal_60245c38bafe2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424997/normal_5ffbc841c75fb.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/werowibovezoje/kamalamma_kamatam_movie_song.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/identix_biometric_attendance_system_software.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/adobe_reader_concat.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/weekly_calendar_template_word_doc.pdfIn PDF document text
    • http://pebimomedunuzux.epizy.com/hungry_shark_apk_hile_nasl_indirilir.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/tezemenonatizolederum.pdfIn PDF document text
    • https://s3.amazonaws.com/loneminovu/lonesupikejex.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/wubusisawapi.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/latex_curriculum_vitae_template_stanford.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/brush_lettering_practice_sheets_kelly_creates.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/chemistry_periodic_table_in_telugu.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_off0000c284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC284 5596 bytes
SHA-256: 02ebd11bac825dd49e45e98053ba9f82d50db94ed03ef31d43758ced9a10494c
font_01_sfnt_off0000d590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD590 10204 bytes
SHA-256: 4f96d618b73542e4c83100ab262828cdc8eb0bf0ab2f613c794ea568e9a05561