Malicious PDF — malware analysis report

Static analysis result for SHA-256 04b9cfb40cacc52f…

MALICIOUS

PDF

84.9 KB Created: 2021-03-15 04:14:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5eb433869557ddadc24f71c14cca6701 SHA-1: 543371d3b921724dd6248d9158c172faf44bb866 SHA-256: 04b9cfb40cacc52fcb104e59b07718e49dc47739188f1854fe8a0ca9d5e9c0c3
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL that directs users to a phishing page disguised as information about the UEFA Champions League. ClamAV and ML classifiers strongly indicate maliciousness, and the presence of multiple external URLs suggests a phishing or credential harvesting attempt. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://zajinet.ru/123?utm_term=uefa+champions+league++pc+game PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4407994/normal_5ff795d26574f.pdfIn PDF document text
    • http://tadosuzewamu.medianewsonline.com/can_you_whitewash_with_chalk_paint.pdfIn PDF document text
    • https://cdn.sqhk.co/patizuruf/dgfzYLn/3705580132.pdfIn PDF document text
    • https://gejerirun.weebly.com/uploads/1/3/5/3/135312822/7548842.pdfIn PDF document text
    • https://fupiloxeti.weebly.com/uploads/1/3/4/3/134380404/torodi.pdfIn PDF document text
    • https://cdn.sqhk.co/wubofuse/O5Sjepo/sadibazuvumofujaxivexapo.pdfIn PDF document text
    • https://cdn.sqhk.co/varomapit/KnE1igd/ruvaxugigasekifir.pdfIn PDF document text
    • http://rabiwitijif.medianewsonline.com/garmin_gns_430_manual.pdfIn PDF document text
    • https://turetufifej.weebly.com/uploads/1/3/4/5/134500159/dalerozuvabu.pdfIn PDF document text
    • https://gejiraje.weebly.com/uploads/1/3/2/7/132740564/ce16bd2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445745/normal_5fcfb32187cd2.pdfIn PDF document text
    • https://cdn.sqhk.co/dodamewope/Dig9ihT/links_2_home.pdfIn PDF document text
    • https://xobopigo.weebly.com/uploads/1/3/1/4/131437845/gokedasurof.pdfIn PDF document text
    • http://vashobereg.com/39369806126j4x0.pdfIn PDF document text
    • http://russianstravel.ru/the_dark_knight_rises_screenplayvnp1p.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/dudujopixejikug/when_did_charles_darwin_come_up_with_the_theory_of_evolution.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/71197617670.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/cochin_shipyard_internship_training_report.pdfIn PDF document text
    • http://jumepenitujox.atwebpages.com/example_of_reaction_paper_in_apa_format.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/test_bubble_answer_sheet_generator.pdfIn PDF document text
    • http://kozogasivufi.myartsonline.com/where_do_you_buy_check_registers.pdfIn PDF document text
    • http://betakudo.atwebpages.com/bose_rc-pws_iii_universal_remote_control_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/49749704341.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_off00010ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ADA 5324 bytes
SHA-256: 2565f48cd3a45ff8cd7207764b446aa47d719ebed36a5a0f8b2fda1c60efa3d3
font_01_sfnt_off00011cdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CDB 12240 bytes
SHA-256: 8e3324cee4a3b95793782af926d7f2cba70133a56e1a77a7429b66e1dc9f7964

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