Malicious PDF — malware analysis report

Static analysis result for SHA-256 e00c4f296855c6fc…

MALICIOUS

PDF

40.2 KB Created: 2020-11-05 06:55:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 16ee5edb7500f5dd3ded1cf719abe178 SHA-1: 221e5d2add38099833d383d0e90eed5cbe874c4b SHA-256: e00c4f296855c6fca6d1986e97047d3020b102700133857f3e0de18215d9a29f
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.cc/123?keyword=parent+consent+form+for+learning+licence In PDF document text
    • https://bonivodetago.weebly.com/uploads/1/3/4/5/134517527/75ddf0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423714/normal_5f9c02ea55372.pdfIn PDF document text
    • https://mapipuluzobeb.weebly.com/uploads/1/3/1/3/131398440/salozu.pdfIn PDF document text
    • https://komimuvupelogi.weebly.com/uploads/1/3/4/3/134312664/1747359.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365586/normal_5f884c8814405.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419415/normal_5f9ca01b8650c.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/sefiwegegagu/nudodilazixi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f6e9309-d687-43d6-9d6b-912665b2a454/73084244060.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/to_kill_a_mockingbird_summary_chapter_12-15.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/vigowukomosazatogunod.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_off000060ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60AE 5204 bytes
SHA-256: 2b66f54640feb42b29fc4ef083487ae89141cfde76ed6a0d53d34947ef5a9294
font_01_sfnt_off00007249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7249 9964 bytes
SHA-256: d84e5c812bef77f697ea9c363ee0229dc59ccc6689d73571e488c4d41d8a64ca

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