Malicious PDF — malware analysis report

Static analysis result for SHA-256 6602466befd48a11…

MALICIOUS

PDF

75.8 KB Created: 2021-02-27 06:36:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: f012842de23ea42301261be70acfe4a6 SHA-1: 122e733c75136291c98a0d6177a7cf12fa40c037 SHA-256: 6602466befd48a11da4ce26e314b45476f28ebf988a7206103e96ec282652013
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, flagged by heuristics as an external URI and part of a phishing attempt. The ML classifier and ClamAV detection strongly indicate maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/123?utm_term=best+guitar+music+theory+book+for+beginners PDF link annotation
    • http://pugisapi.mypressonline.com/radio_shack_getting_started_in_electronics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422637/normal_5ff0090bf3355.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365652/normal_6019ca8ee37a1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389387/normal_5ff6d3b64c785.pdfIn PDF document text
    • http://delinapod.mypressonline.com/52568801984.pdfIn PDF document text
    • http://cenderaoriginator.com/making_leather_knife_sheath_booklg2os.pdfIn PDF document text
    • http://sigisuzuk.getenjoyment.net/hard_sat_reading_passages.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/t_fal_pressure_cooker_walmart_canada.pdfIn PDF document text
    • http://xtrading.buzz/anambra_anthem_musiccms12.pdfIn PDF document text
    • http://lg-copyrightforms.com/thyroidectomy_dietyhx51.pdfIn PDF document text
    • http://mavpa.fun/autosomal_dominant_polycystic_kidney_disease_patient_information3cmga.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/runikoratanusejimeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384472/normal_5fddbc2885c5d.pdfIn PDF document text
    • http://gatowixipeba.mywebcommunity.org/wugogasurupejoled.pdfIn PDF document text
    • http://idealica-official-it.website/game_dev_tycoon_development_stages_guidecjho4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493209/normal_6001a75e8a707.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387235/normal_5fc9f940a708f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kapirexazi.onlinewebshop.net/twilight_breaking_dawn_part_3_book.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_off0000e8b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B5 5616 bytes
SHA-256: 91f410a42cf111bbd89b8060525f89ae9cac403a55d1a01323493302cc7e9f98
font_01_sfnt_off0000fbbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBBF 11240 bytes
SHA-256: ff6edac432b83eb82bacd83bfc1f8a79ef374c5930d01800bcebd2cab8cfe78e

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