Malicious PDF — malware analysis report

Static analysis result for SHA-256 95b1abade643c52f…

MALICIOUS

PDF

54.3 KB Created: 2020-11-03 18:16:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d7d635457d27706bd98863b2597ac3c SHA-1: 777a1a5f1672ceb0cbd873ceb1cf4cf74ea6dacf SHA-256: 95b1abade643c52f4b3a265f90fa0febb6e7a2bd229e7905e7a57460ee09331c
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. The embedded URL, https://ttraff.link/123?keyword=mors+certa+vita+incerta+meaning, is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of a malicious link suggest it is designed to redirect users to a harmful destination, likely for phishing or malware delivery.

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=mors+certa+vita+incerta+meaning
    • https://cdn-cms.f-static.net/uploads/4368999/normal_5f8937901def8.pdf
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/bdced02.pdf
    • https://jamafijuzu.weebly.com/uploads/1/3/1/4/131437216/ea112455b349e.pdf
    • https://wufenimikefi.weebly.com/uploads/1/3/4/3/134366244/4f2e922d64173.pdf
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/89d48930d.pdf
    • https://tugoxalimirufa.weebly.com/uploads/1/3/4/3/134310877/nirizazazokefagogun.pdf
    • https://cdn-cms.f-static.net/uploads/4369309/normal_5f8984ff66a28.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tajimipojimo/what_is_experimental_design_science_olympiad.pdf
    • https://s3.amazonaws.com/bubodeliza/presentations_that_matter_morgan.pdf
    • https://s3.amazonaws.com/vexosafugunu/toxegozalujab.pdf
    • https://uploads.strikinglycdn.com/files/4c6aa2d4-0ef4-4883-9723-ab6e3cffc6ec/49953559504.pdf
    • https://uploads.strikinglycdn.com/files/8d48b7b1-6000-4c68-8144-9ee8b0d39249/33821412585.pdf
    • https://uploads.strikinglycdn.com/files/dde3b94e-f970-4304-96fb-32fe86edec2c/simple_offer_letter_format.pdf
    • https://uploads.strikinglycdn.com/files/90ce2691-c9fa-4b6d-82b7-ac9141eb0292/40954779252.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000094ae.bin
31b0f4c887ed9c6da37d3bbb310b601348a4db7ec98298b4de00ebe15557cbe5
pdf-font-stream PDF embedded font (sfnt) at offset 0x94AE 5152 bytes
font_01_sfnt_off0000a632.bin
2edbf6ba9ad823e00f4b36ef1681e7d7e03cb02c17e94436bbee2ea29002f18b
pdf-font-stream PDF embedded font (sfnt) at offset 0xA632 11332 bytes