Malicious PDF — malware analysis report

Static analysis result for SHA-256 519e0e552b0928a2…

MALICIOUS

PDF

65.8 KB Created: 2021-02-24 10:19:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 9ea996964915cbdbac9b233e48a3ec29 SHA-1: d42b6df0f16a7e3322c3006eaf2eeefec89c3d81 SHA-256: 519e0e552b0928a25d076dbab53fd4f14bde18656c8d87e57e990e52be626510
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains embedded URIs pointing to external websites, suggesting a phishing or credential harvesting attempt. The presence of PDF-specific heuristics further supports its role as a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/123?utm_term=zebco+202+reel+how+to+string PDF link annotation
    • http://wedudixunuluwef.iblogger.org/feladudipitatov.pdfIn PDF document text
    • http://sollabs.xyz/xbox_live_problems_today_uktzwkz.pdfIn PDF document text
    • http://likododolokopaj.iblogger.org/37123843231.pdfIn PDF document text
    • http://logmeinnow.xyz/55778798707zy6ck.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477638/normal_602638900c96e.pdfIn PDF document text
    • http://kadabafomelu.66ghz.com/70933147374.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/memobofilenabon/98137937411.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/30298464346.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/8396432013.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/65396975662.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/86353450346.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/14552704495.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/bissell_little_green_machine_clean_nozzle.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_off0000c542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC542 5316 bytes
SHA-256: fe43b10d6d090b71a3e02eed0776bb40bd0695e0974f953113afcf52736ff7fb
font_01_sfnt_off0000d771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD771 10160 bytes
SHA-256: e040796427efa9ecfd08b0b8e9ecd87935e57317cf5ab6b69b2e1c22d7550182

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