Malicious PDF — malware analysis report

Static analysis result for SHA-256 781448f65ee57685…

MALICIOUS

PDF

73.6 KB Created: 2021-03-20 12:28:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 06b591ddb254ded10e607b14a568b64c SHA-1: cf6065ce87f299b717e6d194f5194d10dc6a84e5 SHA-256: 781448f65ee576853c7d21d973b44167cc5976b1aa3275ca38287c234667ab37
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, masquerading as a search result for 'boy baby names in tamil pdf'. This URL is the primary indicator of a phishing or malicious content delivery attempt. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://resalured.ru/award?keyword=boy+baby+names+in+tamil+pdf PDF link annotation
    • http://lnstagramcopyrightservices.org/the_all-american_slurp_questions_and_answers_class_8n8hsr.pdfIn PDF document text
    • http://devgm.design/8880247235gtfg3.pdfIn PDF document text
    • http://lovumodezubudem.iblogger.org/troilus_and_cressida_summary.pdfIn PDF document text
    • http://byseles.xyz/how_long_are_planet_fitness_contractsm07fo.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/zolerazowubow/41402699030.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/duxewago.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/3663755113.pdfIn PDF document text
    • http://faloboxodutak.epizy.com/84574730846.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/run_android_emulator_without_android_studio_ubuntu.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/38046758205.pdfIn PDF document text
    • http://sijopar.epizy.com/bosch_washing_machine_repair_service_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/list_of_basic_german_words.pdfIn PDF document text
    • http://firofukukonemev.epizy.com/58811647595.pdfIn PDF document text
    • http://gajijiwoxaseke.epizy.com/palabras_de_enlace_para_redactar_un_informe.pdfIn PDF document text
    • https://s3.amazonaws.com/tetofamuxulil/94362777273.pdfIn PDF document text
    • http://nawamejewiwuja.epizy.com/pimunujumosix.pdfIn PDF document text
    • http://zivunoked.epizy.com/94691099031.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/lolegat.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/wedding_romantic_whatsapp_status_video.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/71871826525.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/34796045854.pdfIn PDF document text
    • http://sakigekoxigukil.epizy.com/meningite_et_meningo_encephalite.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_off0000e096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE096 5380 bytes
SHA-256: 48791a0dec4bd5ef9fef292271b824c33c2fadd940902ee83e9babb88bf906bf
font_01_sfnt_off0000f2db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DB 10840 bytes
SHA-256: 6da1666922243b35b5bf98de31765c35f3bbec75708f0947e9249e067cdab0ff

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