Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 e232af703af0b3b3…

MALICIOUS

RTF / .DOC

254.0 KB
MD5: c2a61d6d3fa906094001fd0daac9f1c6 SHA-1: 201102032864e0bf415601db5a259f7c6c8e5f88 SHA-256: e232af703af0b3b3482f5b9db846d1ec384c66a44eaee37800efa34cebc2eb0b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.002 Malicious Link: Malicious File T1566 Phishing T1566.001 Phishing: Spearphishing Attachment T1059 Command and Scripting Interpreter T1059.005 Command and Scripting Interpreter: Visual Basic

The RTF document contains multiple embedded OLE objects, with one specifically triggered by \objupdate, indicating an attempt to activate embedded content. The presence of an "Enable Editing" lure further supports this, suggesting the document is designed to bypass security measures and execute malicious code. The embedded OLE objects are the primary indicators of malicious activity, likely serving as a dropper for a secondary payload.

Heuristics 6

  • Composite Moniker in RTF OLE object high CVE related RTF_COMPOSITE_MONIKER_RELATED
    RTF contains Composite Moniker CLSID in OLE object context, but no nearby scriptlet/SCT payload was confirmed. Treat as related moniker attack-surface evidence rather than proof of CVE-2017-8570 exploitation.
  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 4 \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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000b4b.bin
f4e784c32446b3b5c463eb1140659aea056109748b78efdf1b2e7bdce01d6ba7		 rtf-objdata-decoded RTF \objdata at offset 0xB4B 33923 bytes
objdata_01_off00011556.bin
12289ea42203fe86d5d6e86e52672f752ead5709842d0443203b40a4917d5ece		 rtf-objdata-decoded RTF \objdata at offset 0x11556 12261 bytes
objdata_02_off00017566.bin
3e20173573ecd45c8939b7e831a9cf85b4400150438f9db306f3dfd962c27af6		 rtf-objdata-decoded RTF \objdata at offset 0x17566 2632 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.