Malicious PDF — malware analysis report

Static analysis result for SHA-256 192eea93fdae18c7…

MALICIOUS

PDF

65.7 KB Created: 2020-11-18 11:53:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 99beb68d3f4c38e292413a945363261f SHA-1: 98c73515d28248c5d441e0418d951d58b1135fa6 SHA-256: 192eea93fdae18c785affe82da824bd935eb259cb68d8d0b61613416dfaf96c4
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-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://traffnew.ru/123?utm_term=legend+pdf+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379474/normal_5fa64f0eb47b8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369163/normal_5f972f6e24857.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369493/normal_5fa41168adfb8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453335/normal_5fa0aba11bb61.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379616/normal_5f93f36939125.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369507/normal_5faaade327629.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454301/normal_5fa44273454d0.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/bulalowisu/melim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e122aad-25ba-4cea-b06d-ad02615d474c/gilobi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0c3f6b9-f84a-4f74-85ca-955852458083/fitofekozasabut.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/setedoxo.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_off0000c6e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6E3 4968 bytes
SHA-256: 12deddffbd29a15bb635df5fc37a6c209d01007d215898248a13f4cf31cd984d
font_01_sfnt_off0000d801.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD801 10104 bytes
SHA-256: 77dbe65965782e68511d3f00e490cd9e67aac226e37a67c8e4c963bc487d14fe

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