Malicious PDF — malware analysis report

Static analysis result for SHA-256 5424e4047c408425…

MALICIOUS

PDF

67.9 KB Created: 2020-12-25 02:02:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 6d9ce3e3f5021f80115df4f6ec801464 SHA-1: d10e15600a9429170aba7e24ab2896cb80d02098 SHA-256: 5424e4047c40842588b07de213b9435c8cf505c200f084e06bdfe231de4a690e
214 Risk Score

Malware Insights

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

The file is a PDF document that impersonates Netflix to lure users into clicking a link. This link redirects to malicious infrastructure, indicating a credential phishing attempt. The ML classifier and ClamAV detection strongly support its malicious nature. No scripts were extracted, but the embedded URLs and phishing lure are sufficient indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://xosenevofas.weebly.com/uploads/1/3/5/3/135324499/temolexubi.pdf.
  • 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://gettraff.ru/123?utm_term=roku+internet+browser+free In PDF document text
    • https://xosenevofas.weebly.com/uploads/1/3/5/3/135324499/temolexubi.pdfIn PDF document text
    • https://matubupediguja.weebly.com/uploads/1/3/4/1/134131452/3f92db0deb8a.pdfIn PDF document text
    • https://cdn.sqhk.co/guzunilepin/d72ih9d/jutiti.pdfIn PDF document text
    • https://mabamigetope.weebly.com/uploads/1/3/4/4/134493328/5833670.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374359/normal_5fcef7441af6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408333/normal_5f9cddb93ab31.pdfIn PDF document text
    • https://cdn.sqhk.co/fumazuri/hjhhzhj/39291659868.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/woxotopapozokev/pulmonary_arterial_hypertension_european_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/43495558538.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/c_s_lewis_the_problem_of_pain.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_off0000ceba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBA 4824 bytes
SHA-256: bceff16b40b3a99e6d70f7fd0e9c7e98c85222b051f6e1c839e19d43f39bc685
font_01_sfnt_off0000df4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF4F 10524 bytes
SHA-256: bff78d60195ae11245af728771781e4dd67d5310a2c429b61c2e2bc40c75f7de

Open this report in the interactive analyzer, or submit your own file for analysis.