Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a958cceb21ca64…

MALICIOUS

PDF

34.9 KB Created: 2020-11-04 14:42:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 6a91dcccb4f0490c941a36a74f097185 SHA-1: eeaed2b75b1ce47b9f7d99ed03db04f481a263af SHA-256: 01a958cceb21ca64364480db4e9ac7ec4458e2592a00150b28b1dedf829a494d
94 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 'https://cctraff.ru/aws?keyword=maya+cinemas+pittsburg+ca'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the redirector suggest an attempt to lure the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://cctraff.ru/aws?keyword=maya+cinemas+pittsburg+ca In PDF document text
    • https://cdn-cms.f-static.net/uploads/4367911/normal_5f878a42a57aa.pdfIn PDF document text
    • https://xifobosakup.weebly.com/uploads/1/3/2/8/132815359/4153227.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378379/normal_5f9a20ce3df93.pdfIn PDF document text
    • https://fegilekupajot.weebly.com/uploads/1/3/4/4/134404616/makoromenazova_rolabu_namavimagemor_tajutazok.pdfIn PDF document text
    • https://finazodaxuvoj.weebly.com/uploads/1/3/2/6/132682535/nakakowesitupim.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/29c8c811-cba7-4960-a496-5f53079d9a3e/jordan_fisher_shows_and_movies.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/jujawanimataj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/990b188a-bd4a-403a-a04a-258ba5bf4d63/vewemudebefakojunojopixiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71cc61ad-f247-4959-ae6a-ebad93c962c4/18336457598.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89401dee-0929-4125-af4f-ab1b734fdd6d/bivujopetiliwifus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa5dcbb2-1cbc-4af0-b4dd-a0b26d756ac7/paris_lee_bennett.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_off00004702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4702 5468 bytes
SHA-256: c180e0c7ba140ad2cb7fb19b010d199454cef395eee6cf65381a8a3de5ab5985
font_01_sfnt_off00005998.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5998 11304 bytes
SHA-256: 934468a38b9c5435adacb0b605dc4550d4fb1d1c98166a2611c93fcb4d9ab4a1