Malicious PDF — malware analysis report

Static analysis result for SHA-256 784f28af34037045…

MALICIOUS

PDF

66.0 KB Created: 2020-12-04 16:48:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: cce6428d1d3bbcc8f674dbad110bfece SHA-1: 8c4a178271dd4fe57e6932dff071586b14b08869 SHA-256: 784f28af34037045bdf0e4523ac5b242193b5191490ad6e7d941a5c7316b2530
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'traffking.ru'. This, combined with a high ML score and ClamAV detection, strongly indicates malicious intent. The embedded URL is likely used to lure the user to a phishing site or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://traffking.ru/123?utm_term=ortograf%25C3%25ADa+de+la+lengua+espa%25C3%25B1ola+2017+pdf In PDF document text
    • https://sakuvida.weebly.com/uploads/1/3/0/7/130775714/vidup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417309/normal_5fbcd4f37905c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381543/normal_5fa3e83954d13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374700/normal_5f94afbaeb109.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368496/normal_5f9503b93080f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366389/normal_5f8bc4b754f6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377908/normal_5fb30d9fc190e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc3caf68139af0376573afc/t/5fc8884d7ff5a343ebf7ea54/1606977614704/dobimazo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfd38b7a66e04eaf50367/1606221121447/split_full_movie_online_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2e1ce8ef7301f8b1db8cd/t/5fc6256e61e25426e109aea7/1606821231248/pexapodapaturi.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/walefexikuwidobezorifaw.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1175aa879396864096daa/t/5fc21c72e6d49a06bbdaa305/1606556787542/mexasosizulaso.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_off0000c0f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0F2 5908 bytes
SHA-256: 0ab288390dc1be6997be05553328ada47d6b3aba29d304cffe5856311cadceb3
font_01_sfnt_off0000d4f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F0 11008 bytes
SHA-256: f7c5e0bbcbbba64372e2857531306c1fbdbbfcfd39bf52f351bfad54ae44a24b

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