Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 c0e31f234e2f593a…

MALICIOUS

RTF / .DOC

1.32 MB Created: 2010-03-18 17:10:00 Authoring application: Microsoft Word 11.0.0000
MD5: 8cf0aaae88ec8b42a56d01122702fc97 SHA-1: 617fd0d99b71b5890f6d328dbedd3c0f0e291307 SHA-256: c0e31f234e2f593a157f26aa9734e6c9d80dec8b401204a022d44037975428fc
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File T1566.001 Spearphishing Attachment

The RTF document contains OLE object data with excessive hex-encoded data, indicative of a hidden payload. The presence of URL monikers suggests the document attempts to download and execute external content. While the document body appears benign, the heuristics strongly point towards a malicious OLE object exploitation. No scripts were extracted, limiting direct analysis of payload execution.

Heuristics 6

  • URL Moniker in RTF OLE object high CVE related RTF_URL_MONIKER_RELATED
    RTF contains a URL Moniker GUID in OLE object context, but no decoded remote target was confirmed. Treat as related OLE2Link attack-surface evidence rather than proof of CVE-2017-0199 exploitation.
  • Large hex data blocks in OLE object high RTF_EXCESSIVE_HEX
    RTF contains ~1321KB of hex-encoded data inside \objdata sections — may hide a payload
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • OlePres presentation stream in RTF OLE object medium RTF_OLEPRES_STREAM
    RTF contains an embedded OLE object with an OlePres presentation stream. OlePres is an OLE presentation marker and is not enough on its own to identify CVE-2025-21298.
  • 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://schemas.micros
    • http://assembly/womentogether
    • http://wales.gov.uk/consultations/education/?lang=en
    • http://wales.gov.uk/consultations/education/?lang=en}}}\sectd

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00001407.bin
af4dffe9a0afac440fd4bbbf4ff88f6559b7fbf5d187c4b79ed76062f89ea75a		 rtf-objdata-decoded RTF \objdata at offset 0x1407 395260 bytes

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