RTF / .DOC malware analysis — malicious · f6701ff55451c155

MALICIOUS

RTF / .DOC

213.3 KB

MD5: 79785c72a389370b7b6c47991b37a49b SHA-1: dd72badbc1aeed28426e56e03c18dc8713a818fc SHA-256: f6701ff55451c155a3d8cb73646c2159ea9938cbea945b8302fb39754422c621

160 Risk Score

Malware Insights

MITRE ATT&CK

T1204 User Execution T1204.002 Malicious File

The RTF document contains multiple embedded OLE objects, with specific heuristics indicating that \objupdate forces OLE activation and that composite monikers are present. The document body explicitly instructs the user to 'click Enable Editing', a known lure to bypass macro security settings. This suggests the document is designed to exploit embedded objects upon user interaction, likely to download and execute 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 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.

Filename	Kind	Source	Size
`objdata_00_off00000bd0.bin` `0f6dae29e44c610b6d165887071f27feb93cebb4ea684b80289079d2b2106eb7`	rtf-objdata-decoded	RTF \objdata at offset 0xBD0	12898 bytes
`objdata_01_off00007239.bin` `0d5d09fb7e87d140659b8f662dc3a7b92cd848450a431d1974047996c57d1f01`	rtf-objdata-decoded	RTF \objdata at offset 0x7239	2632 bytes
`objdata_02_off000087d4.bin` `cfdf79b95584afe599f8bd01e391d8904839d9495e407a353433d3f5e3be3602`	rtf-objdata-decoded	RTF \objdata at offset 0x87D4	12261 bytes

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