Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eacbafce2fdea91…

MALICIOUS

PDF

67.1 KB Created: 2021-03-03 19:35:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e54c408b9ae9ecb73ca4f7bdb3fd1e8e SHA-1: ca98e9d731cef5c68cdafbdbb237eae241041a07 SHA-256: 3eacbafce2fdea91ddd0387503cf9f80dd9165a4542c991f3263d49e3cdd71a0
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://gimoguvi.ru/award?keyword=minecraft+guide+to+survival+ebook PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4479460/normal_5ff44a805c008.pdfIn PDF document text
    • http://alsamcctv.com/538145349785j2ir.pdfIn PDF document text
    • http://deemonatrafik.xyz/124412425800wjiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380084/normal_601ef39959bc9.pdfIn PDF document text
    • http://shoplus.info/summertime_saga_guidesjpfk0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gokujipavelidaz.rf.gd/is_potassium_hydroxide_strong_or_weak.pdfIn PDF document text
    • http://nuwalowu.rf.gd/how_to_become_a_good_student_in_university.pdfIn PDF document text
    • http://wubavon.epizy.com/puwasiraf.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/88647548479.pdfIn PDF document text
    • http://zexenodu.rf.gd/rudisojibutajuworo.pdfIn PDF document text
    • http://pikididubemet.epizy.com/you_tube_aa_morning_meditation.pdfIn PDF document text
    • https://s3.amazonaws.com/tutapaxi/kindle_fire_app_store.pdfIn PDF document text
    • https://s3.amazonaws.com/pafexegud/brother_synonym_formal.pdfIn PDF document text
    • http://rexawisoza.epizy.com/gubinipokusajanob.pdfIn PDF document text
    • http://tirejazanapo.epizy.com/can_someone_with_adhd_be_a_teacher.pdfIn PDF document text
    • http://kopuperoki.epizy.com/liwelixonezasovipelom.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/bonnie_clyde_song.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_off0000c9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9D3 5456 bytes
SHA-256: 72976d50b0a8440b6581842d684dcec40b36a2a750900a8e3cf4cf98a8e019b9
font_01_sfnt_off0000dc8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC8B 10264 bytes
SHA-256: e0b9ccd4f0d81ebca9a85aeb3cf8509779b9e693c1c91c6c297739523ea66f4f