Malicious PDF — malware analysis report

Static analysis result for SHA-256 69e34b15368d3d10…

MALICIOUS

PDF

39.2 KB Created: 2020-11-03 11:52:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 56f126c5024ec8b0a9ab92b702cf22fc SHA-1: 9b8c28af43fed11ef8e0a7a6fbc407be1033d4d3 SHA-256: 69e34b15368d3d109d6112e3e52d0cf2f80ce997fa90599fdcebbf47462f9224
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://cctraff.ru/aws?keyword=sailing+fundamentals+by+gary+jobson+pdf In PDF document text
    • https://bituxusod.weebly.com/uploads/1/3/4/3/134347303/57a0e691833.pdfIn PDF document text
    • https://wimiberurazem.weebly.com/uploads/1/3/4/3/134351881/mojulenerarozawo.pdfIn PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/9c49e.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/zonibopiwesi.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/cdb5ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404108/normal_5f99dd9dab201.pdfIn PDF document text
    • https://zilowefid.weebly.com/uploads/1/3/4/5/134510497/6375f.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/zidenigad/india_road_map_download.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/free_online_document_language_translation.pdfIn PDF document text
    • https://s3.amazonaws.com/kimoweworape/fd731v_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/dinilederu/boiler_start_up_sequence.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/ritag.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/causes_of_major_depression.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/vukodejidifuzuvikibomefo.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_off00005925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5925 5784 bytes
SHA-256: 70aec30f8f88bba2edf698f7574dd74ef2b962922d415d896f67524279134c06
font_01_sfnt_off00006cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC5 10196 bytes
SHA-256: 0d1eb01f3b5bbce4d50facac9b4dc946054affb4a67a713059b068bd8026157d