Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb883ffa7d30fbbb…

MALICIOUS

PDF

42.9 KB Created: 2020-10-30 14:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7e1c1ae4d84a9ab5767e00d432c944fd SHA-1: 98bc8b4c55c8751004311d2ecbfd8e47ddcc92d8 SHA-256: cb883ffa7d30fbbb5e6c8de317c8edaa017e20360f51a73bc3f90ba4b2164603
94 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 an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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://ttraff.ru/123?keyword=what+is+seinen+anime+genre In PDF document text
    • https://latijazaw.weebly.com/uploads/1/3/4/3/134312978/posalorunugere_mugaji.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/aa92d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370286/normal_5f8e28e0a201c.pdfIn PDF document text
    • https://damijuvik.weebly.com/uploads/1/3/1/3/131381376/9ecc6771f91.pdfIn PDF document text
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/xesadubovubanu-diniwadun-dezuvetapazufog.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/legenapi/zanoxapevonaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/4640/1690/files/relev_de_note_bac_maroc.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/vizimabodubobura.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/74913860022.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC5 4236 bytes
SHA-256: 4a833398df9e3d49f90cc32087dbeeabebc8d856f43705bb8aa8ac894bb9f07a
font_01_sfnt_off000069d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D2 5080 bytes
SHA-256: 5c6eaddda295bbd30eebb24cbc7e97dba906851f5e0da1bb97e5473c63a3d534
font_02_sfnt_off00007afa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFA 10572 bytes
SHA-256: 1fab55eb5520922e43c76e00fef78141dbdbb9c4e160861b2c72a16b00a87a60

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