Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebae5604ab91b064…

MALICIOUS

PDF

37.5 KB Created: 2020-11-04 02:18:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: ae9da4fe4342f32b194515fb3eeb919c SHA-1: d2c02486405825fd4c8e7ef10030578664747bfd SHA-256: ebae5604ab91b0640df1f35472fdb41520911b17853d3c4f08265aa2c63eda0b
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.club/123?keyword=jean-pierre+harrison+na In PDF document text
    • https://cdn-cms.f-static.net/uploads/4447098/normal_5f9e1eadbab18.pdfIn PDF document text
    • https://turomanusogagi.weebly.com/uploads/1/3/1/4/131453559/dadojiwisixak-watokuzadijigi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366035/normal_5f87760920055.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378623/normal_5f99e86b8488a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404990/normal_5f94f042c0b17.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/bc476439-967b-482b-975c-90ee836b9361/96162361642.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7039b623-4f45-4816-968f-07aab387e58e/karcher_gcv160_pressure_washer_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c25ebe2c-ebcc-4760-af89-80817f4eef32/5334838817.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/pesuzaruzex.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/gafisubu.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/jomexatawepi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000494a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494A 4604 bytes
SHA-256: f33f0ee26a0056f5ab3eb7c0495a911200da2da290e1a44dfbc8ddec1d0a3206
font_01_sfnt_off000058ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58CE 10272 bytes
SHA-256: e83896c7ea2d0bf354ff45788efe4a3df5c3b5a4178fe67da35ef617105d300c
font_02_sfnt_off00007b9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B9F 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e