Malicious PDF — malware analysis report

Static analysis result for SHA-256 1be0128703aa83ee…

MALICIOUS

PDF

83.0 KB Created: 2021-03-17 01:08:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 409fcb7133323df02ecf5aa5a8594926 SHA-1: b1e3a18127b3ee984ba4b5f1d91a3567bb277324 SHA-256: 1be0128703aa83ee5caf72c55260bcc6f3b9d5d1ad3110bb6df050c3fcc15fbc
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a domain that appears to be a lure, disguised with a search query. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a potentially harmful website, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://fokemale.ru/wix?keyword=scratch+lesson+plans+for+elementary PDF link annotation
    • http://gelufose.scienceontheweb.net/orthopedic_physical_assessment_magee_6th_edition_free_download.pdfIn PDF document text
    • http://sitebomobegux.sportsontheweb.net/what_if_you_run_out_of_cards_in_monopoly_deal.pdfIn PDF document text
    • http://microbestdigitalmeter.xyz/762336053502hhkn.pdfIn PDF document text
    • http://tozemudezajif.mygamesonline.org/revutawakomud.pdfIn PDF document text
    • http://cuzinfo.ru/65306624334x5lwn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dazovosugev/free_auditing_book.pdfIn PDF document text
    • http://jesasudazewur.epizy.com/cisco_anyconnect_secure_mobility_client_link.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/mutosurinejujubasape.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/backup_apps_android_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/immunomedics_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/popisiburewixuj/swann_smart_security_system_2k_series_1080p_price.pdfIn PDF document text
    • https://s3.amazonaws.com/xelimewat/best_flirt_lines_for_her.pdfIn PDF document text
    • http://misibinebob.epizy.com/alternative_answers_to_thank_you.pdfIn PDF document text
    • http://bikutuvuxaxixo.epizy.com/wafid.pdfIn PDF document text
    • http://xogaduzop.atwebpages.com/pobelanovavagolaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/57214027579.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fadf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFADF 5200 bytes
SHA-256: 0f1c1aedf4dc0de81edd0a7d0198025b5d82c44898a381ba00279b3b93928e57
font_01_sfnt_off00010c56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C56 10520 bytes
SHA-256: 127e67a573d4c1c95dc1bcc6644d273993c551ead03d6db9f9cb8b4dc91b464a
font_02_sfnt_off0001304c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1304C 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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