Malicious PDF — malware analysis report

Static analysis result for SHA-256 714c0c02ace2de6a…

MALICIOUS

PDF

66.8 KB Created: 2020-11-18 01:37:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 2020d2a6cf26f0860764ec3d66f1acfe SHA-1: 2d5c79cb1543faa22d1abf5a35530d5ca0d94d3f SHA-256: 714c0c02ace2de6a3af6f77e422aa5f2a5808e7cbd1b856b8daa0b9573c070e7
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://traffnew.ru/aws?utm_term=apple+bluetooth+keyboard+app+android PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393180/normal_5fb43d09e013a.pdfIn PDF document text
    • https://zoxuzula.weebly.com/uploads/1/3/4/4/134489613/1436944.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477369/normal_5faaf72e2f25e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375340/normal_5f99e9c812d75.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/0b56f674-6ff4-4d3e-b187-899b77caeac4/decodable_words_for_1st_grade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/084a5f64-bb12-4715-8bab-c50aee44e319/niximu.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/pawek.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/xuvale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23102b49-85df-4ab1-9c9a-ab5347c8e195/ck_12_biology.pdfIn PDF document text
    • https://s3.amazonaws.com/pegek/59210243518.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_off0000c943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC943 5164 bytes
SHA-256: 69916b24600980986821e1d7c85bb42c35c975e89585cb71976425ceac337bfe
font_01_sfnt_off0000dac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC9 10512 bytes
SHA-256: c436500b8fefff2e5f475319ab45a9de9a3b911e1d57a8469c5ba031dd8b87e6

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