Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 0deba8ea85be06af…

MALICIOUS

RTF / .DOC

211.9 KB
MD5: 7ab95e4e129b3b9b59cacc13719b558c SHA-1: ca02a7d5c70ad25419c378ac054f57982e7f89cb SHA-256: 0deba8ea85be06af543e5135150d4f7fe5d9e6d1bbaf41213fec2f2c9dbe3d8e
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1203 Exploitation for Client Execution

The RTF document contains OLE objects and triggers heuristics related to CVE-2017-8570, which is known to drop SCT scripts. The document body explicitly instructs the user to 'Enable Editing' and mentions that 'Microsoft Office does not work in email Preview', serving as a lure to bypass macro security. This indicates a likely macro-based attack pattern designed to execute a malicious payload.

Heuristics 7

  • Composite Moniker — CVE-2017-8570 (drops SCT script) critical CVE related CVE_2017_8570
    RTF \objdata decodes to OLE data containing the Composite Moniker — CVE-2017-8570 (drops SCT script) CLSID — the vulnerable control/moniker is embedded directly in the document's object stream, the delivery shape of this exploit. RTF objects auto-render when Word opens the file.
  • 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 3 \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_off0000098b.bin
6459e7084f8f02051c969a27117567c31957b09a5c0b5c1c9d7059f89d678090		 rtf-objdata-decoded RTF \objdata at offset 0x98B 12594 bytes
objdata_01_off00006c67.bin
efcad781cab3d633c5a53c0b86b2c30761dd037463d8eb36ded19f59f1126d89		 rtf-objdata-decoded RTF \objdata at offset 0x6C67 2632 bytes
objdata_02_off00008202.bin
cfdf79b95584afe599f8bd01e391d8904839d9495e407a353433d3f5e3be3602		 rtf-objdata-decoded RTF \objdata at offset 0x8202 12261 bytes

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