Malicious PDF — malware analysis report

Static analysis result for SHA-256 15e8bb74db20e516…

MALICIOUS

PDF

74.1 KB Created: 2021-02-27 18:25:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 6a1b9e0eb6109bd419979e00b2e71cc3 SHA-1: 14d513b150442bd10f3159eca04c3c35f2fc1c80 SHA-256: 15e8bb74db20e516e921d07beeedd92c82a17c52470ed339e8bf34fe64689c13
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, suggests a lure related to a "bible review", likely a pretext to direct users to the malicious URL. No scripts were extracted, but the presence of an external URI is a strong indicator of malicious intent.

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://fokemale.ru/strik?utm_term=the+jewish+voice+bible+review PDF link annotation
    • http://witinub.iblogger.org/48041745364.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/HIVicja/download_clash_royale_mod_apk_revdl_terbaru.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449177/normal_5fec7e8ceb38a.pdfIn PDF document text
    • http://jorolog.22web.org/xodusuguximogop.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411919/normal_5ffc81c8160c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403117/normal_602bf86f8a9c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457847/normal_5fce34992b475.pdfIn PDF document text
    • http://nagajavanof.22web.org/45476375358.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469353/normal_5fdf7757792bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386828/normal_5fcfb2ad4560e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376120/normal_6012789243ae7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491151/normal_60293b640100b.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/davubewu/adina_howard_discography.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/sociolinguistics_ronald_wardhaugh.pdfIn PDF document text
    • http://lufeneweb.epizy.com/hilink_5v_3w_datasheet.pdfIn PDF document text
    • http://pixuxurarosu.epizy.com/retefojesosasimefor.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_off0000e6cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6CC 4992 bytes
SHA-256: 495a554a12fe84b3aa0e97cb8f6b25615f0b47cf81cc8c9a4c7bbd66fb8d8991
font_01_sfnt_off0000f7dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7DD 10488 bytes
SHA-256: 4082369ca772dd37984925b2872c215c8f1b454ac8787f02b0dc41d60a31e196

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