Malicious PDF — malware analysis report

Static analysis result for SHA-256 4177ba9312eee0be…

MALICIOUS

PDF

76.4 KB Created: 2021-05-12 10:55:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 06567edcd6ed84816494d6a2c2b96ced SHA-1: 8e5c162a3699ec91bda1c74639295e74e1907ccd SHA-256: 4177ba9312eee0be7c34bc36e30d5dab5c3feb89a26fbca3816e33138460411a
136 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'breaking news' and includes an external URI pointing to a suspicious domain, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure align with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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/wb?keyword=breaking%20news%20new%20paris%20indiana PDF link annotation
    • http://migipobazu.mypressonline.com/82398426232.pdfIn PDF document text
    • http://jixewelo.scienceontheweb.net/sejarah_agama_hindu_di_indonesia.pdfIn PDF document text
    • https://dejaxunex.weebly.com/uploads/1/3/4/3/134318563/a65f597.pdfIn PDF document text
    • http://saporik.scienceontheweb.net/ravi_belagere_book_siddhartha_download.pdfIn PDF document text
    • https://nitelozam.weebly.com/uploads/1/3/5/3/135308565/kijok_zidomazasekonow_zasizazurutam_vasopikefurefod.pdfIn PDF document text
    • http://rotelebi.22web.org/54616961119.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/domegagowevag/whatsapp_plus_apk_latest_version_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/moduxanakuri/simple_carburetor_working.pdfIn PDF document text
    • http://wudobez.rf.gd/authoritative_leadership_style.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f6b9b09-ef4c-4054-b045-506d4b2c2dc1/87928000145.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/spring_framework_maven_bom.pdfIn PDF document text
    • http://navuwarulugo.epizy.com/vutigobigasurat.pdfIn PDF document text
    • http://pugazapuxijal.myartsonline.com/11371177476.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37f530d0-aa33-4df2-b793-929541cbd383/why_wont_my_bobbin_thread_catch_janome.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9c61180-bdee-4dc5-a766-e3d3f1495317/allison_1000_transmission_rebuild_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/75528226905.pdfIn PDF document text
    • http://pebulibupa.rf.gd/inside_out_full_movie_dual_audio.pdfIn PDF document text
    • http://rodisasedozax.myartsonline.com/interview_questions_and_answers_for_marketing_job.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_off0000ecac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECAC 5300 bytes
SHA-256: d9f2cc0b6cf089ec845b2be286761617bf91c2a05394237acf292c7f38fd3fc6
font_01_sfnt_off0000feda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEDA 11252 bytes
SHA-256: 13bc0c8902d3a80a3c2f69fb247ac4fd936b96a63f7a11e9914fd6971ff6e4e1

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