Malicious PDF — malware analysis report

Static analysis result for SHA-256 11bc69018f339de9…

MALICIOUS

PDF

71.0 KB Created: 2021-02-17 17:38:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 103fdb7cac4e172998d57caa5604de07 SHA-1: ad149e7a293ef6506a9a0793f5ff0314fac7dc36 SHA-256: 11bc69018f339de96cb73386b0746e5cd899d657543e01f9a490f3b2129db078
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=zip+to+apk+converter+online+free PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451350/normal_5fddbe9e2f71b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393647/normal_5ffbc9cd2babd.pdfIn PDF document text
    • http://bonuwefuganagus.22web.org/hotel_disclaimer_form_template.pdfIn PDF document text
    • https://cdn.sqhk.co/filumabit/ciehbOw/megan_fox_height_cm.pdfIn PDF document text
    • https://cdn.sqhk.co/jesotipo/hijK6ib/debujeputum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413373/normal_5fe6079f354df.pdfIn PDF document text
    • http://gimakelodikovij.iblogger.org/tebidojelimirexidi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366647/normal_5feeafc9ed7da.pdfIn PDF document text
    • https://cdn.sqhk.co/nivatasob/cShbojc/knight_of_wands_labyrinthos.pdfIn PDF document text
    • https://cdn.sqhk.co/tedalome/niajjrw/nifetowokamomebap.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422147/normal_5ff0be25db81b.pdfIn PDF document text
    • http://medakijizu.22web.org/gazujudid.pdfIn PDF document text
    • http://zinedoxo.22web.org/oracle_pl_sql_developer_guide.pdfIn PDF document text
    • http://mefizilexofe.66ghz.com/diaper_raffle_tickets_template_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479462/normal_5fd698969bf9d.pdfIn PDF document text
    • http://foteraza.22web.org/dot_product_and_cross_product.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491665/normal_5fef3f113a22e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jibipadesubamom.epizy.com/78746629982.pdfIn PDF document text
    • http://sefatefa.epizy.com/38366472110.pdfIn PDF document text
    • http://nikofutame.rf.gd/wojuguwasalifuxovuluna.pdfIn PDF document text
    • http://wojefuk.rf.gd/29010522650.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_off0000d8f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F9 4912 bytes
SHA-256: 01883c1811a0265a7ef621eeacbe8e35e007dd23c9a4a41c7b752b03c5f51bf6
font_01_sfnt_off0000e9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D5 10824 bytes
SHA-256: e0cf66f252a65471b1671896b7dab6bd31f9587df9172bbdb2eaf61348a51f63

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