Malicious PDF — malware analysis report

Static analysis result for SHA-256 486486c91782e106…

MALICIOUS

PDF

71.6 KB Created: 2020-11-12 17:10:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 57f59db9ef127baaab02657464e4db1a SHA-1: 15ce1647348868ca9d56c81675c8e782b024e1bd SHA-256: 486486c91782e1066a7a913c951a95cba075485b20f91b2e52a742b7a84bf1df
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 suggest it's designed to trick users into visiting a malicious site, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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=subway+nutritional+information+ireland PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365584/normal_5f9e8c0b02f52.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422136/normal_5fab1206dc235.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368240/normal_5f87621dcfb8b.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://uploads.strikinglycdn.com/files/b6c85806-d19d-4703-ad51-531349ac4e25/79226117836.pdfIn PDF document text
    • https://s3.amazonaws.com/bodepova/68967135015.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/quality_assurance_process.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1562a097-52f8-41b8-8af5-674ff3ce04a4/lurotujagikuno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af0bdd20-e21e-402d-9058-628e88c7a7ee/57511008485.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/mifofila.pdfIn PDF document text
    • https://s3.amazonaws.com/wulagisi/funixofofipaduv.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF42 5196 bytes
SHA-256: ce0d05bfb75be7067428d709904ab05b147d6f7f8917c425beeb9154391869df
font_01_sfnt_off0000e0e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E3 10120 bytes
SHA-256: 7f70921d75eb28fb3d649f7b81aed70cedf627d0a7924febed959dd0bc508b71
font_02_sfnt_off00010373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10373 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176