Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7e06b8c9710a8bb…

MALICIOUS

PDF

46.6 KB Created: 2020-11-07 19:17:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 90a1db69ae8e60db13a6e2dd83e4cd80 SHA-1: 1b551a0044a9a6d3d6541d06df122d74e5d86f8f SHA-256: c7e06b8c9710a8bb0fbcfd7ee6eef4295ead3bf0f93d41987504309b10a47971
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 0.9998

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://traffmen.ru/123?keyword=how+else+does+gravity+contribute+to+erosion In PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/pigakonu.pdfIn PDF document text
    • https://baxojozejaxofo.weebly.com/uploads/1/3/4/5/134586757/8056288.pdfIn PDF document text
    • https://bufibefoxoxopij.weebly.com/uploads/1/3/4/4/134489975/solukezaselos_pitoseputukus_zofofud_kekirur.pdfIn PDF document text
    • https://tuzuwopibas.weebly.com/uploads/1/3/4/3/134316447/4837415.pdfIn PDF document text
    • https://vedabigejiko.weebly.com/uploads/1/3/1/4/131438046/7757125.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://vigomuwivo.files.wordpress.com/2020/11/ashoka_full_movie_in_tamil_720p.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/14695337961.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7676bf4e-a02c-40a9-8cdd-dec007e5faa3/80074572128.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F85 8676 bytes
SHA-256: 2c3042c95727c9bff4b914ee893057e9cce888991a209ed33ed4318c93ca5752
font_01_sfnt_off00006c7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7C 5460 bytes
SHA-256: aca80ac87909ae2c735e14633a4a42adb59f74be7a943fbfd229277dcef4a419
font_02_sfnt_off00007f2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2D 1688 bytes
SHA-256: 99bfee4757303f27d80f965204bd28520d1050411813ff1d804f26a4af20f1a6
font_03_sfnt_off0000879c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x879C 10588 bytes
SHA-256: 04c452dbcc8a459b00b691b1d1f793eebe77536d462dc7820992bc8364a3a0ae