RTF / .DOC malware analysis — malicious · 479359b567cee405

MALICIOUS

RTF / .DOC

346.9 KB

MD5: 4cbdbe42f996bfc6ba2c562c363157e0 SHA-1: 92e4078d7cc6a5e8d7095bd24395734ff6120f00 SHA-256: 479359b567cee405775f024ce15266469841505674c198ec25468d89151a5e1f

160 Risk Score

Malware Insights

MITRE ATT&CK

T1559.001 Component Object Model T1204.002 Malicious File

The RTF document contains multiple OLE objects, with several heuristics indicating automatic linking and update mechanisms. These features suggest the file is designed to exploit OLE vulnerabilities to execute embedded malicious content when opened. No document body or script content was available for further analysis.

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` `17d101bf271663e80df0c4f1bbf6a7e35eb82f9d1589237fc108091e053e5cca`	rtf-objdata-decoded	RTF \objdata at offset 0x7DA	65990 bytes
`objdata_01_off00006f89.bin` `d2a4d54c85100a373cb80e19d1b88f4c190d0f27e9b56436f040ac0329391b04`	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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