Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2ce9b0805ece876…

MALICIOUS

PDF

75.3 KB Created: 2021-04-14 00:06:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: cc4920bcf5f2a7936fdff5b19bad5125 SHA-1: 828c2afd84995373deb7566113a8ee5235562966 SHA-256: b2ce9b0805ece8761ef40a4b89584cab93a057565c890f8122782707746f7db5
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://gimoguvi.ru/strik?utm_term=que+es+una+ficha+de+resumen+ejemplo PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485578/normal_606b8abf90b2f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390330/normal_5fc6b1a27b9a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479237/normal_6033365c181e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489042/normal_60248e3eb0c1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449193/normal_5fd7d7db2002b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tazevisizi.rf.gd/measures_of_central_tendency_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/xisefowu/91179152508.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/reported_speech_online_exercises_for_class_6.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/h2020_coordinators_day_amendments_and_reporting.pdfIn PDF document text
    • http://gikekim.rf.gd/punekar_sc_st_act_book_download.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/indices_and_logarithms_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/el_alquimista_paulo_coelho_libro_completo.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/tp-link_tl-wr710n_manual_franais.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/sazerado.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/happy_birthday_flower_pictures.pdfIn PDF document text
    • http://vusezozoxegakin.rf.gd/jalatiwotagalebonorido.pdfIn PDF document text
    • http://wajalapivibobi.epizy.com/fururobujijo.pdfIn PDF document text
    • https://s3.amazonaws.com/pasutiz/fevovikeduxinej.pdfIn PDF document text
    • https://s3.amazonaws.com/gidibesuxi/tawojigixewidamavoliva.pdfIn PDF document text
    • http://valamujunitun.epizy.com/xeteruvalab.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/22688040455.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/90506907191.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/java_8_jre_zip.pdfIn PDF document text
    • http://mexokibalu.epizy.com/agilent_hplc_troubleshooting.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_off0000e5f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F1 5532 bytes
SHA-256: 06fcda4bd9aaf637e9c03042f4769ded551d00a16db028d611989b19a499164f
font_01_sfnt_off0000f898.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF898 11540 bytes
SHA-256: 456b04e6633ed1b42c6593de66580fb46e530a477de18fc40df6c9b8e4566ebe

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