Malicious PDF — malware analysis report

Static analysis result for SHA-256 f19d3dea78c89d28…

MALICIOUS

PDF

72.3 KB Created: 2021-02-15 10:32:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 32182bee64ff01c00a4ade3c46ea63dd SHA-1: 66f5dff648f847bfefa9ecf676ff4ce9dfdf17b3 SHA-256: f19d3dea78c89d285a0fd30ac8a682b01f6bae7e489c1cbd3b108856a8f41e6a
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'https://bologen.ru/aws?utm_term=business+plan+template+simple', which is presented as a business plan template. This suggests a phishing or social engineering lure to trick the user into downloading a secondary payload. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/aws?utm_term=business+plan+template+simple PDF link annotation
    • http://shoop-fn.ru/android_tv_box_x96_mini_amlogic_s905w6erf6.pdfIn PDF document text
    • https://cdn.sqhk.co/visobipibe/Agchd5N/dragon_heroes_shooter_rpg_apk.pdfIn PDF document text
    • http://poroda.site/67917472171ftbf7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401994/normal_6029cde2c590d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367000/normal_600f87e697f94.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492278/normal_6003182d76992.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457854/normal_6020c26c04866.pdfIn PDF document text
    • https://cdn.sqhk.co/mapexuze/YiiuTgc/olympics_2016_medal_winners.pdfIn PDF document text
    • http://endi-itali.space/best_songs_of_all_time_mp3_download4zjyf.pdfIn PDF document text
    • https://cdn.sqhk.co/poxirowo/dxgiijc/messenger_lite_old_version_for_iphone.pdfIn PDF document text
    • http://heliusdesign.ru/dental_assistant_jobs_qld_health89hph.pdfIn PDF document text
    • http://gufutaca5.xyz/76610647093rad4o.pdfIn PDF document text
    • http://smcjd.com/vegulanesudozefip382e.pdfIn PDF document text
    • http://copyrights-notices-helps.com/591611556546csrt.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/sojaxub/bob_woodruff_park_fishing_report.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/95268868859.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/maravokubonepovid.pdfIn PDF document text
    • https://s3.amazonaws.com/jugobimuraje/xolaxarapotenewi.pdfIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/kedenexokufobetudeja.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/today_tamil_news_paper_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/sheet_metal_bead_roller_dies.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/87183240176.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_off0000de91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE91 4916 bytes
SHA-256: 1955273030fa4664bd0a9efd272e20eb6bd2ecfe2a70b7a85b40edb53b64c3b0
font_01_sfnt_off0000ef3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF3C 10780 bytes
SHA-256: c75b71cfb219d08588e3042aa232da3ee15d73ddf42b209afb1f0622ad0018ba

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