Malicious PDF — malware analysis report

Static analysis result for SHA-256 a66661997a58f83a…

MALICIOUS

PDF

236.8 KB Created: 2021-03-19 17:31:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 564aba97c1ffc4903275919a34627745 SHA-1: 203ebfbd1c5f150c0d8ced35e6732d41b6a11861 SHA-256: a66661997a58f83a553bb4a098e19f964ae0bd5f392de2319246aac53b4b7db4
104 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. It uses an urgency-based lure. 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 0.9980

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://resalured.ru/strik?utm_term=how+old+are+the+baudelaires+now PDF link annotation
    • http://leoidet.xyz/10319922613e4mdh.pdfIn PDF document text
    • http://sadovik.me/41510663236bf0t7.pdfIn PDF document text
    • http://instgramcopyrightdispute.com/68728778363g6myt.pdfIn PDF document text
    • http://goxivomibivufuv.mywebcommunity.org/10248982025.pdfIn PDF document text
    • https://wapubepedud.weebly.com/uploads/1/3/1/4/131455956/7eabe1d4b0935a.pdfIn PDF document text
    • http://blockhcain.host/symmetry_group_theory_and_mathematical_treatment_in_chemistryvoef8.pdfIn PDF document text
    • https://voxujoponita.weebly.com/uploads/1/3/1/6/131607404/figutelusoluzo.pdfIn PDF document text
    • http://urolog.xyz/how_to_replace_electric_water_heater_elements3tjdi.pdfIn PDF document text
    • http://theandyhong.com/35206315631ihoxe.pdfIn PDF document text
    • https://nukawopuriw.weebly.com/uploads/1/3/4/3/134347541/c5ede1c.pdfIn PDF document text
    • http://abanca-electronica.com/automatic_desktop_wallpaper_changer_windows_106desc.pdfIn PDF document text
    • http://tcerkovniekupola.space/remington_700_bdl_7mm_express_for_salen5lxq.pdfIn PDF document text
    • http://deromgroup.com/barrons_gre_book_price_in_pakistanrfr4o.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ce13249-d320-4e32-9060-40671e1eab9a/oppo_103eu_review.pdfIn PDF document text
    • http://bavatesivo.myartsonline.com/rider_waite_tarot_deck_pocket_size.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dae344f6-965d-4fc9-8d9a-c1f78e8535cf/11821814829.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d757215-69ba-41ed-a13a-6bb069014f50/msi_h81m-p33_bios_setup.pdfIn PDF document text
    • https://6eed613e-cbae-405e-b458-9655ef9033f8.filesusr.com/ugd/e4f6f0_0d941525b0b44bd9a6c9ada7bc6a95af.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d11176fe-5578-4004-b164-9ef511e94cc1/what_sign_is_the_hierophant.pdfIn PDF document text
    • https://45180a89-8b92-4d54-a4c6-cdf0ad6af3c7.filesusr.com/ugd/2b98a3_3b82327c3072440ba150fac7ab3be873.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/e88e22c3-710b-47ba-9025-cd0b06527350/hp_officejet_7310_replace_ink_cartridge.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000365c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x365C6 5108 bytes
SHA-256: 7ba35c300b917eb7af8ceb9fcbe115f4c6417251e1c2a276db32eee77e755779
font_01_sfnt_off00037726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37726 13340 bytes
SHA-256: b8842ab256230ed441fba5155bfc9f2284d01df1a2f0936005e98fbe74ad74eb

Open this report in the interactive analyzer, or submit your own file for analysis.