Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbec24c87259db08…

MALICIOUS

PDF

73.5 KB Created: 2020-11-23 12:48:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: f899141c4fd3ef1a691bc6f002481929 SHA-1: 0bf704d768a7e87b4c539d97553190a98e299420 SHA-256: fbec24c87259db084b09aa6dc141a0af3b4bbe26e4ea26629019b850ff455a06
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a suspicious domain, likely serving as a landing page for phishing or malware distribution. The document body, though heavily obfuscated, contains references that align with the PDF_URI heuristic, suggesting a lure related to 'Servamp movie alice in the garden'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffset.ru/strik?utm_term=servamp+movie+alice+in+the+garden PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427093/normal_5fae1a0798fb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378164/normal_5faf3028ae19d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499023/normal_5fb5db6527ee1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369764/normal_5f93c841d1be4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367625/normal_5f9261d5ba05e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368978/normal_5fb3ce504c283.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370764/normal_5f8d9475b6905.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/nonipesikiri/xabagewubopojekad.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/mezoxevexovuwuled.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5706162a-49a6-478f-b3d6-5cded0212030/34926060634.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f8699b0-22d0-4552-b18d-6e1194147eb1/lokonurutumipinujuza.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/mavufogowupegunaz.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/vediduwajijog.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/61310803574.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/watilujadokelil.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bbf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF5 5260 bytes
SHA-256: c8e4b1e8ca3c341445153fc7deba4d71873675874834d4fe66e7c857da704d35
font_01_sfnt_off0000cd9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD9C 10968 bytes
SHA-256: af76dea0c1f60ee979bd67ebe701c9cdf98a7d4ba7a4c816632a8a6cc99bf872
font_02_sfnt_off0000f25e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF25E 17004 bytes
SHA-256: 189af3d66bbf965e7b410d7c65cccae6177257f33b1846ffee4af40b4d4b89d9
font_03_sfnt_off00010a8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8C 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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