Malicious PDF — malware analysis report

Static analysis result for SHA-256 db58f7ab249f100e…

MALICIOUS

PDF

88.5 KB Created: 2021-05-04 06:07:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 019f6c1a950264e327f162240260d788 SHA-1: 2ee6009c9890737f6fcb810fcb49cc2f5a3cc1af SHA-256: db58f7ab249f100e36f9e908f72a3be2c0e54ff5ca200d70b2d4b43b584482f4
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains an embedded URI pointing to 'https://ponafet.ru/strik?utm_term=is+one+touch+ultra+mini+discontinued', which is likely part of a phishing or social engineering attempt to trick the user into visiting a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to lead the user to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://ponafet.ru/strik?utm_term=is+one+touch+ultra+mini+discontinued PDF link annotation
    • http://turoxolu.iblogger.org/esic_stenographer_syllabus_2020.pdfIn PDF document text
    • http://wagezofon.iblogger.org/fivivifutebidedowagaw.pdfIn PDF document text
    • http://vujofinupapido.22web.org/jowudifinotapim.pdfIn PDF document text
    • http://bavimobuxadu.medianewsonline.com/jojekusakukidu.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/pantry_cabinet_plans.pdfIn PDF document text
    • http://rujamuleta.iblogger.org/nagukojikasoza.pdfIn PDF document text
    • http://jelabenix.22web.org/hungry_dragon_mod_menu_apk.pdfIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea8e1a63-596b-4578-bec9-b9aab3a3127a/debosiloradasolomuborofi.pdfIn PDF document text
    • http://sawotopedexorod.epizy.com/d._o._c_marocain.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/speech_in_the_virginia_convention_questions_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93a60132-be9e-4771-beef-c53fb9c287bb/echo_and_narcissus_commonlit_quizlet.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/retozasuzotepupozatasolox.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/95385707691.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63d4fe3b-8d86-4bd1-9505-ccd9cd1bb2bf/tojetuz.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/26200933152.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/linijukuzudejovefewajafod.pdfIn PDF document text
    • http://kojuvurapamox.myartsonline.com/database_management_system_download_tutorialspoint.pdfIn PDF document text
    • http://madujenorenugax.epizy.com/maverafugavo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f747208-a04b-4bba-8035-097d11bc9956/vibobagorezuwop.pdfIn PDF document text
    • https://s3.amazonaws.com/xeropizuwe/use_css_in_django_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/what_makes_a_good_dd_campaign.pdfIn PDF document text
    • http://luxupovokajaf.onlinewebshop.net/aula_1_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/rawifemag.pdfIn PDF document text
    • http://fusaworus.rf.gd/keratosis_obturans.pdfIn PDF document text
    • http://rigunuduxiza.rf.gd/non_verbal_communication_techniques.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/wpf_tutorial_c_dotnetskool.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e553108-2a5d-4ab4-a1eb-67798048a2a2/wadomigex.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/guideposts_magazine_customer_service.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000101f9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x101F9 15956 bytes
SHA-256: e55aac0a4e624ca5b7e337cbca9964666d1abf55977952c1a228c9ffb034b4fe
font_00_sfnt_off0000f0ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0CA 5116 bytes
SHA-256: 789294308dd943022e9373a9bdb72c06e81198ace37352f60ad7e96cfe09ae18
font_02_sfnt_off00012de1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DE1 11064 bytes
SHA-256: 5a6c60fe9d2bd049bf588b0d832bb7096a4ac0a6c4715ca15771230de5a464a6

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