Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aea6b9da7ffb777…

MALICIOUS

PDF

97.2 KB Created: 2021-02-18 06:59:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 09fe93a1857d0cfe974339f9fffe527d SHA-1: 93dae74df0b86b79d61e9d8a58965eecece6e462 SHA-256: 8aea6b9da7ffb77719fc89f2fd6d26d3739933b96bbe66c9c4b2975bd4896ace
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a suspicious domain, masquerading as a search result. ClamAV and ML classifiers also flagged this file as malicious, indicating a phishing or trojan payload delivery attempt. No scripts were extracted, but the presence of external URIs suggests a download or redirection to a malicious site.

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/strik?utm_term=how+to+make+a+toga+with+queen+sheet PDF link annotation
    • http://mp4.design/fanunagugam5neie.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485939/normal_5ff8f2c1d8a53.pdfIn PDF document text
    • https://cdn.sqhk.co/dijogiper/idJfKgj/ninja_tuna_mr_scruff_kalimba_download_mp3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460473/normal_5fe15871c2fad.pdfIn PDF document text
    • http://iwhite.space/trasmaco_de_calcedniaxub4y.pdfIn PDF document text
    • http://hookup153.site/vokeruwoturowivivuxikivcddq2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sitiditazowoz.rf.gd/phonics_second_grade_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/bawazirabigasolusipevimo.pdfIn PDF document text
    • http://sotemapepuko.epizy.com/carbon_datetime_format_laravel.pdfIn PDF document text
    • https://s3.amazonaws.com/wovugi/kocc_et_le_civisme.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/food_safety_hygiene_and_sanitation.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/australian_visitor_visa_application_form_1229.pdfIn PDF document text
    • http://kegipufi.rf.gd/puzzle_games_in_maths_with_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/marafixiwideturenuge.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/88619155521.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_off00013f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F25 5216 bytes
SHA-256: f2e7157dedffcb9ede4fdbc989e77bc6b52222b73314a0d86c936807cafed087
font_01_sfnt_off000150cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150CD 11384 bytes
SHA-256: e071a04ffe1c269e261a3063b5555df3a7bd9b7112cb7a10edb1eb42059cc482