Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a9b1f090d69b1d2…

MALICIOUS

PDF

86.3 KB Created: 2021-12-14 05:04:15 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-29
MD5: 61f55a84ba74f8bc5419991bf81cfa93 SHA-1: 4afd05be83583cb9938791ff670732ecbc291fb6 SHA-256: 4a9b1f090d69b1d2f280b517fee3916fda17763893917647a368eebb81c77fba
84 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0308

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://getpdf.pw/book?res=123&isbn=9788441435599&kwd=Que%20Se%20Enoja%20Engorda,%20El PDF link annotation
    • https://files8.webydo.com/9590637/UploadedFiles/3A9BB579-C388-A8E3-4F7B-360E1ACEB7E3.pdfIn PDF document text
    • https://static.s123-cdn-static-b.com/uploads/4677500/normal_61b7931e57c94.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D5 21560 bytes
SHA-256: ecd7680cdbaa5721b8a1cb8c753aad5d0660a36e216aa7f2a6987e7468c36ee3
font_01_sfnt_off00012c1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C1F 19416 bytes
SHA-256: d715deaf2b59a8d6c01728cb023bae4e600649418f64c0db3f885dea56bc2b9c