Malicious PDF — malware analysis report

Static analysis result for SHA-256 efb70256ac18f749…

MALICIOUS

PDF

50.5 KB Created: 2026-06-07 23:32:24 -07:00 Authoring application: iTextSharp’ 5.5.13.3 ©2000-2022 iText Group NV (AGPL-version) First seen: 2026-06-10
MD5: 408fbb8fac818615f5ed2f9de56104ab SHA-1: 47ed943004003ae5591aaaded692265dda51ba97 SHA-256: efb70256ac18f749b92afa68e2c38073039db859ff804d1ad15304f9e509584c
132 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9256

Heuristics 4

  • Invisible/repeated PDF links deliver payload file critical PDF_REPEATED_PAYLOAD_LINK_LURE
    PDF uses invisible link annotations and points to a direct payload download. Repeated invisible links or lure-like payload names such as document/unlock/verify archives match malware-delivery PDF carriers where the page is only a prompt and the real payload is fetched from the linked URL.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 50 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Image-only PDF lure with a single link to a non-reputable host medium PDF_IMAGE_LURE_NONREPUTABLE_LINK
    PDF is image-heavy with little real text and its only clickable action is a single external link to a host that is not known-good. This is the canonical malspam carrier shape — a screenshot-like 'click to view' page whose sole purpose is to funnel the victim to one redirect/landing URL on a compromised or throwaway domain. Flagged suspicious rather than malicious because the link alone (no shortener / typosquat / brand path) is the only corroborator beyond the image lure.
  • 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://qv.co.ke/SKMB-PRP2026-AA.7z In PDF document text
    • http://www.iec.chIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
icc_00_off00000059.icc pdf-icc-profile PDF ICC profile at offset 0x59 3144 bytes
SHA-256: 2b3aa1645779a9e634744faf9b01e9102b0c9b88fd6deced7934df86b949af7e