Malicious PDF — malware analysis report

Static analysis result for SHA-256 6950294b11bfaba1…

MALICIOUS

PDF

73.9 KB Created: 2021-03-03 04:46:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 3bc6311ef2516e2abde52d63c82a1000 SHA-1: f90f7528cf87d0b3ca516907c47ee546e7bd72a2 SHA-256: 6950294b11bfaba1868f66f9c1ae151f50e185d06d676596f7d8d0cac472e102
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to exploit users by presenting a lure related to a 'Korg sv1 manual' and directing them to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/strik?utm_term=korg+sv1+manual PDF link annotation
    • http://zoneeuro.pro/what_is_the_correct_order_of_the_twilight_moviesom7fo.pdfIn PDF document text
    • http://begemotiks.space/bujetolux73dkh.pdfIn PDF document text
    • http://oneitshop.pro/natulawobasogavamzp14.pdfIn PDF document text
    • http://detonicufficiale.website/nbc_sports_tv_schedule_rugbyiwcof.pdfIn PDF document text
    • http://rasprodavaika.ru/malibu_lights_transformer_manualthz1q.pdfIn PDF document text
    • http://reform-st.ru/gutonujomuwadeqb6a.pdfIn PDF document text
    • http://nusowutevu.getenjoyment.net/wawurajunivisifivafudum.pdfIn PDF document text
    • http://nitanupemil.mygamesonline.org/kezegujetatoxoridum.pdfIn PDF document text
    • http://lady-bug.club/botefinokipufovobalexawsyun1.pdfIn PDF document text
    • http://mimedilubaj.22web.org/29787503488.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/jowutoneranemuk/aila_re_aila_dj_song_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/vunoduputaw.pdfIn PDF document text
    • http://rawigukegopafot.onlinewebshop.net/88891512348.pdfIn PDF document text
    • https://s3.amazonaws.com/zafaronivaj/zafalonowanazimaweki.pdfIn PDF document text
    • https://s3.amazonaws.com/woxorojero/feriados_puerto_rico_2020_oatrh.pdfIn PDF document text
    • http://talesezon.epizy.com/pututobo.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/78739256727.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/linipixofiles.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/90944270531.pdfIn PDF document text
    • http://voxotili.epizy.com/sapuwibojovamiterod.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_off0000e55c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55C 5088 bytes
SHA-256: c8645c6d85b08ade7b73f4a08bd60b00bf4f7330dda930fd65beea9b8ade09d5
font_01_sfnt_off0000f6aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6AA 10520 bytes
SHA-256: f0bd036e41f69287a8681c64081c773c3ef4398f85eac5d4bff2ea526f0754e8

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