Malicious PDF — malware analysis report

Static analysis result for SHA-256 b89299526037e718…

MALICIOUS

PDF

76.5 KB Created: 2021-03-18 10:47:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: cff44dafddbd4910ed0c66ef1b05231e SHA-1: 0113e460df0ba55307de93c9b6e146332267fcac SHA-256: b89299526037e718936e73fe4c4c1b6aecdc702996a1e74ea175b50f33ae68c7
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a domain associated with phishing or malware distribution. Although the document body is heavily obfuscated, the presence of an external URI and the overall detection suggest the file is designed to redirect users to a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/strik?utm_term=how+to+find+shares+that+pay+dividends PDF link annotation
    • http://5coupons.info/how_to_know_if_your_sprinkler_solenoid_is_badp16zu.pdfIn PDF document text
    • http://lightstart.xyz/50633384093wg7zl.pdfIn PDF document text
    • http://gadatoreneperil.mygamesonline.org/moto_g6_camera_instructions.pdfIn PDF document text
    • http://axecheat5.xyz/fevupusiwirowea8.pdfIn PDF document text
    • http://lnstagramsupportinfo.com/basic_multivariable_calculus3uf4m.pdfIn PDF document text
    • http://idealslimitaly-official.site/99484022565se7av.pdfIn PDF document text
    • http://spiritstudio.ru/93370110334qhafe.pdfIn PDF document text
    • http://petersikdar.com/dekibezaxedevatatabeto62o3t.pdfIn PDF document text
    • http://1xbet-football.fun/medieval_period_of_english_literatureqoo8l.pdfIn PDF document text
    • http://togaxifobuf.mypressonline.com/kellogg_casebook_2020.pdfIn PDF document text
    • http://zzzmmmmejjj.space/microsoft_office_brand_guidelines6l7to.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tiwufuwivuvuf.epizy.com/subject_pronouns_exercises_with_answers.pdfIn PDF document text
    • http://selosaxugi.epizy.com/experiment_acid_base_titration_report_matriculation.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/bawemira.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/how_do_electronic_medical_records_work.pdfIn PDF document text
    • https://s3.amazonaws.com/tejuvonixag/14244931127.pdfIn PDF document text
    • http://norevejuvo.epizy.com/riwuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/tixevibinetiwekazipasagig.pdfIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/gateway_b2_workbook_answers_unit_8.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/gym_workout_log_book.pdfIn PDF document text
    • http://karelovaluz.epizy.com/53807768620.pdfIn PDF document text
    • http://vupikefugogulup.epizy.com/livros_espiritas_para_baixar_gratis_em.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_off0000ebf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF3 5312 bytes
SHA-256: 2b4c3d536dd2f3d5bd2f11a01c1fc07812c4f14f99b8546ac68d15553ddc1126
font_01_sfnt_off0000fe1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE1D 11372 bytes
SHA-256: e474b3a1ed3ce306ee8bc0cc8c1fc22d40fd1e108c8734c01d75444c71ca2dd1

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