Malicious PDF — malware analysis report

Static analysis result for SHA-256 332e48fcd2d300d8…

MALICIOUS

PDF

46.3 KB Created: 2020-10-29 18:51:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a6d08efbf369a23e89f3128b3d22cbfc SHA-1: 12af652d371c59965f8b9da3b6c5d48917a6fb11 SHA-256: 332e48fcd2d300d87e5111060c9fd78fdd769ed2c597eb1813fb6199ff52afac
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.cc/123?keyword=final+cut+pro+7+serial+mac In PDF document text
    • https://cdn-cms.f-static.net/uploads/4372384/normal_5f9506bf23af8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368248/normal_5f8f799068cca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367635/normal_5f8751e97bb72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377924/normal_5f96d07a44b33.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/piwanisaj/dikotesiwib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0135b6f-f2d3-46e0-82a5-28cfe176678a/xorubuworexogezowezejux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/0399/4015/files/tv_guide_albany_ny_spectrum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8127/5808/files/offences_taken_into_consideration_guideline.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/xefozemoruzaki.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/42398140939.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cea20a5-422a-41b4-b93e-c2aff573e4b4/besijufusidaxij.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/accountable_talk_speech_bubbles.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/smoke_and_mirrors_neil_gaiman.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_off00006c89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C89 5116 bytes
SHA-256: a0b875d5c727952976fb348f1661fcdab194cb2cfa3a3441351f54b38202c06d
font_01_sfnt_off00007de2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE2 14444 bytes
SHA-256: 4fbdbbf0fc40f74d89c06db74bc3ab989f5613991871a34e0fe3a6c71e4d8510