Malicious PDF — malware analysis report

Static analysis result for SHA-256 89daa1f2a2440370…

MALICIOUS

PDF

105.8 KB Created: 2020-12-20 06:41:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5663f275b27906d93e49fe135b3fe3ab SHA-1: c34825bfed2c115f46c83bad788c496fc35412f9 SHA-256: 89daa1f2a2440370b6d461f1cf66bfd6535945125fe03af8bde862e84ef8cff9
96 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. 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 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://traffnew.ru/123?utm_term=dominic+d+agostino+fasting PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489596/normal_5fd60cb947f42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475217/normal_5fda4d0a2870d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379237/normal_5fcca473c8617.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378831/normal_5fc6134619090.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460725/normal_5fba4c9dd3ad6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426545/normal_5fd8c98f6d16d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464702/normal_5fd08feacf2fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446925/normal_5fbba7acdcf82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404520/normal_5fb5bae01606b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377403/normal_5fa8496e6d0e6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382429/normal_5fca123d5b51f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374542/normal_5f91e032e4090.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/8873db16-26b6-4ce5-9d30-082f1047f90e/pipasilib.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc57202b8467722f1f27178/t/5fd65338dca22152603f9278/1607881529562/posot.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_off000164a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x164A4 5212 bytes
SHA-256: a6e2a3fe4ebd7044a36b111e68ab21a966279cb542672b1d624980b0b17e8a3c
font_01_sfnt_off00017656.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17656 10544 bytes
SHA-256: f7c798f7d8e4f2ce576d38f8b8f67e3d48e3b6f347b979153e9085e57288f0c0

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