RTF / .DOC malware analysis — malicious · 54b0ff9d62ef4867

MALICIOUS

RTF / .DOC

346.9 KB

MD5: 46e530bd1d4af9fb8a4524642243161b SHA-1: 6c0b5e411be5c9063ed0132bb66924ae257fe1ed SHA-256: 54b0ff9d62ef4867ba3aea9daa53c21a2b9e7ed772504e960bfc1d568ecb3850

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF document contains multiple OLE objects, with high-confidence heuristics indicating automatic linking and update triggers. These mechanisms are commonly used to embed and execute malicious code, likely leading to the download or execution of a secondary payload. No document body text or scripts were extracted, limiting further analysis of the specific payload.

Heuristics 5

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.
Automatically linked OLE object high RTF_OBJAUTLINK

RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
\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

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off000007da.bin` `40b762f177e5753d6be0efff916c9cd4bf88fd43733ffc145cd0ff205c8d690c`	rtf-objdata-decoded	RTF \objdata at offset 0x7DA	65990 bytes
`objdata_01_off00006f89.bin` `bb6cd5a22c60cb4918dacd8693eb22185a032e038b501a9d993c2ef274a9985e`	rtf-objdata-decoded	RTF \objdata at offset 0x6F89	65963 bytes
`objdata_02_off0002881c.bin` `32e8e449cdc043249ce37c79c9eaf2af80a02cb8175718a8a0ce726d961b7d16`	rtf-objdata-decoded	RTF \objdata at offset 0x2881C	2632 bytes
`objdata_03_off00029dbf.bin` `e8d4fe950caed6dcfde26f4b616825bbe11b93458425974b7d075167f675abf7`	rtf-objdata-decoded	RTF \objdata at offset 0x29DBF	12297 bytes

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