Malicious PDF — malware analysis report

Static analysis result for SHA-256 97d91af0c00e0643…

MALICIOUS

PDF

82.2 KB Created: 2021-02-20 23:24:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 41fedbdd50262bc4810ede2f9fa55927 SHA-1: 83a43df37c5b961a96142fa4275cfd0ac2bb08da SHA-256: 97d91af0c00e06437ba9a8794bc5f788c608109a4db31c136d2c6d4007ca7782
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL pointing to a suspicious domain, which is a common tactic for phishing or malware delivery. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of an external URI suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/123?utm_term=samsung+galaxy+s9+plus+case+amazon PDF link annotation
    • http://gakivako.iblogger.org/sheet_music_for_away_in_a_manger.pdfIn PDF document text
    • http://1offpark.xyz/roule_galette_petite_sections7sbv.pdfIn PDF document text
    • http://ratubave.22web.org/66177664633.pdfIn PDF document text
    • http://ital-tess.space/eve_online_guideygtxl.pdfIn PDF document text
    • https://povutepumik.weebly.com/uploads/1/3/2/7/132741486/6668099.pdfIn PDF document text
    • http://itdiscounts.pro/satefekozovimaserefaowv.pdfIn PDF document text
    • http://bodibuburotegi.22web.org/bollywood_hd_songs_websites.pdfIn PDF document text
    • http://balenagawovu.22web.org/cracked_spotify_premium.pdfIn PDF document text
    • http://yesitalia.fun/950757006216wsmx.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/sulasatevirexo/brief_history_of_computer_generation.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/telecharger_whatsapp_2019_apkpure.pdfIn PDF document text
    • http://xokesuluz.epizy.com/cricket_news_video.pdfIn PDF document text
    • http://lubesugoninop.epizy.com/fozeserija.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/antivirus_for_ubuntu_16._04_free.pdfIn PDF document text
    • http://rumejumobu.epizy.com/new_stylish_bengali_fonts_free.pdfIn PDF document text
    • http://wozilololigib.epizy.com/durham_region_recycling_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zijivevip/gulemufukizipusolonevufa.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_off000102f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F8 5636 bytes
SHA-256: c1dea3019e4fde776b59957567ef0d7c7b822ba01801e63077766cba402c9468
font_01_sfnt_off0001162a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1162A 11024 bytes
SHA-256: 6e524fcfa7077e0b0066f380796cccac9d3d53fcfaf608bef0b32188da221ed0