Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb9ddf526de5a629…

MALICIOUS

PDF

60.3 KB Created: 2020-11-19 02:00:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: df2cf8c15605c22a045cf42fb2bdef66 SHA-1: c2be42efa4dd61085da7da9bbc7d71d86e8668bd SHA-256: eb9ddf526de5a62997d2458fb0bfb37eda1b397e6bf48ec4d7a698bf0f6106f7
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 0.9996

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://trafftec.ru/123?utm_term=innovited+hid+flickering PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4481830/normal_5fa94f60c8784.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480878/normal_5fb359551c507.pdfIn PDF document text
    • https://voruvagozi.weebly.com/uploads/1/3/4/7/134742827/wedekebepixagudavuwo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426695/normal_5fa99173bb977.pdfIn PDF document text
    • https://tejivabir.weebly.com/uploads/1/3/4/7/134714352/1318396.pdfIn PDF document text
    • https://bemogipe.weebly.com/uploads/1/3/4/3/134379528/136a6055.pdfIn PDF document text
    • https://viwekaxirudadax.weebly.com/uploads/1/3/4/7/134700275/6538395.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484995/normal_5fa805de57b9c.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/2dd32d1a-3e21-451b-8676-33f4c02fd229/balanced_and_unbalanced_forces_works.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/penn_plax_cascade_700_gph_canister_filter.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/chord_chart_template.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_off0000b0b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0B9 4956 bytes
SHA-256: 14f835c4f5e9fb42b5c7781ef63ce0c6c02b53c9579cb963d5e2daf7e211645e
font_01_sfnt_off0000c19c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC19C 10404 bytes
SHA-256: 6d6e0da68a7eb1a951885cae295516b07924a39f27b1f7ac6e22ad8755a554f7

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