Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a7048dc59b6ffca…

MALICIOUS

PDF

32.8 KB Created: 2020-11-03 17:14:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c6eea4ae6215a18fc15b608b26ab76b5 SHA-1: 28c84d53693a71517dec24ef23d54dad70f15222 SHA-256: 5a7048dc59b6ffca7e781b0ffa1c8260d1e90dc054d19e457511b75f9b5523e3
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://ttraff.link/123?keyword=lyrics+to+broken+by+seether+ft+amy+lee In PDF document text
    • https://norudajesopoz.weebly.com/uploads/1/3/4/3/134340776/154bc4cc1.pdfIn PDF document text
    • https://galebekamabe.weebly.com/uploads/1/3/4/3/134305591/7326044.pdfIn PDF document text
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/1787595.pdfIn PDF document text
    • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/9575900.pdfIn PDF document text
    • https://wipaluxeko.weebly.com/uploads/1/3/4/3/134346688/3069875.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/mamukawaxatali/avon_catalogue_septembre_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/strike_force_heroes_unblocked_67.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/ionic_bonds_gizmo_worksheet_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/nojukegozopu.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/xonigumoximiwogasexigi.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_off00004272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4272 5368 bytes
SHA-256: 2af227643e919e2e842204f05aedabc6706c78b4637f1c2fff2375769d5dbd71
font_01_sfnt_off0000549b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x549B 9912 bytes
SHA-256: 7b3afc0f9c2f18832225e87d08af1e8a42677ce3994ddf4621adb3650a2a642b

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