Malicious PDF — malware analysis report

Static analysis result for SHA-256 e41b5ce2db33f0f1…

MALICIOUS

PDF

73.9 KB Created: 2021-02-24 04:05:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 84b6268cd9195d1bbbe6c47e2d6ab875 SHA-1: d163ff356f57a460cf465640fc1e2a9dcf355c5a SHA-256: e41b5ce2db33f0f1e384cf663affff657e358f070a8d6dd872ad4fb166f78a65
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a URL associated with a search query for a specific product manual. This URL is likely part of a phishing or scam attempt to redirect users to a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing.

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://leonvi.ru/wb?keyword=all%20american%20pressure%20cooker%20941%20manual PDF link annotation
    • https://cdn.sqhk.co/dowusutitozi/jmJhe3R/tagugevavufit.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449630/normal_5ff2f77d44f10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454436/normal_5fd0a67605ed9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445341/normal_5fd272cfef682.pdfIn PDF document text
    • https://cdn.sqhk.co/ragekasa/hew13ij/beach_buggy_racing_2_tesla_model_s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459028/normal_60304130293f6.pdfIn PDF document text
    • http://axecheat5.xyz/blades_in_the_dark_v8o1744.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472763/normal_5ffda676746f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366036/normal_600a86ae6382e.pdfIn PDF document text
    • http://hydrofthol.space/calcular_integral_definida_online6xy32.pdfIn PDF document text
    • http://tovelksa.website/polk_magnifi_max_sr_review_cnetc7y71.pdfIn PDF document text
    • https://cdn.sqhk.co/felebamifuk/WCgdkgg/59716569922.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/rodiligarexo/62136743765.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/free_yearly_3_bureau_credit_report.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/6249447680.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/44071317648.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_off0000e45e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45E 5428 bytes
SHA-256: 882594572b3abae36092578fa21156db7730669ea208937f33ff7951bde11a98
font_01_sfnt_off0000f6ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6CE 10676 bytes
SHA-256: 8b8543e837e7b7a3dc7b850c1a5e83fd76ecd7376ef737c9686375bc4558e3c5