Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ede22f40ae9646…

MALICIOUS

PDF

40.9 KB Created: 2020-10-31 03:49:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 0d7d2260e96c5dc3a75e536e654fcd77 SHA-1: 28c3b15dfc75338f51588fa7464400c1840cccad SHA-256: f6ede22f40ae96463e8343e90a62845f08ce6adfd5e49f79ded166016e19eb7c
94 Risk Score

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://ggtraff.ru/123?keyword=first+and+second+continental+congress+worksheets+pdf In PDF document text
    • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/voximaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414679/normal_5f9784c47c4f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368242/normal_5f890dbf27c71.pdfIn PDF document text
    • https://pitimonajavigo.weebly.com/uploads/1/3/1/3/131383860/c9863cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369904/normal_5f88d97be9690.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/fasanag/24208967714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0503/7113/3597/files/clear_axes_matlab_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/9155/6031/files/reliable_academy_mpsc_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/0173/2039/files/himnario_adventista_notas.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/rilisikibulatuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/8086/7736/files/dictionary_of_terpenoids.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_off0000606b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606B 5528 bytes
SHA-256: ccc4b9a5b1c9b1a0a80a8778a4edac1348b75e227c2eb72ba05e9ed61107447f
font_01_sfnt_off0000734e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734E 10376 bytes
SHA-256: a3f18f85e208ae08ca75aa443a0f1031792299fb912b38f3b6c638c34f5bd3a6