Malicious PDF — malware analysis report

Static analysis result for SHA-256 47e386949794ee99…

MALICIOUS

PDF

170.0 KB Created: 2021-02-20 13:16:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f14866f225e3cf99c896e808679ccfbf SHA-1: df058b229b979dd3896072a74d104e75842b4224 SHA-256: 47e386949794ee99d9c39b8ac8c0cff94097c1e58abafdac3f40dc655bf5825b
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://maypoin.ru/strik?utm_term=enron+scandal+accounting+standards PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417988/normal_60018825f11c8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371003/normal_5fd16f904ef78.pdfIn PDF document text
    • https://kenuzoba.weebly.com/uploads/1/3/4/0/134017938/4149892.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471946/normal_6019b9db7fba9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381997/normal_5fcbb03f12e81.pdfIn PDF document text
    • https://bituxomixa.weebly.com/uploads/1/3/4/1/134131270/822efea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369772/normal_5fd8883544132.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415051/normal_5fdc0de84f311.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369504/normal_600102d196ec3.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/pegebunov/57786415504.pdfIn PDF document text
    • https://s3.amazonaws.com/rolefosiju/acknowledgement_sample_for_field_report.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/vejijizo.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/61900921259.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/automatic_transmission_vs_manual_transmission.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/awadhesh_premi_dj_remix.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/satidenalixutivarufalota.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_off0002604a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2604A 5064 bytes
SHA-256: 27c4338d6e22f9d1e613a4bb96e72df63c7c5a8f0092515128b9e9f78aa24145
font_01_sfnt_off00027193.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27193 12276 bytes
SHA-256: c0f963ba5961c40b896827da0cd6dbbf550536079a33e39cce6b14fb521d10f6

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