RTF / .DOC malware analysis — malicious · d5636cadf6de18e4

MALICIOUS

RTF / .DOC

346.9 KB

MD5: 705fb236e9ffcbb19699b0dd094398fe SHA-1: 78783d2267a04f00b624d59e397bfb104ea43a56 SHA-256: d5636cadf6de18e49413a76c67d24d3572bccecc62bfccd7d52ec180d53abbc5

160 Risk Score

Malware Insights

MITRE ATT&CK

T1559.001 Component Object Model

The RTF file contains multiple embedded OLE objects, with high-confidence heuristics indicating automatic linking and update triggers. This suggests the file is designed to exploit OLE object activation to execute arbitrary code when opened. No specific malware family could be identified from the available evidence.

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` `39b00505a705704786ee5429babfce561bda1a4332968c31d8463edd9beecd49`	rtf-objdata-decoded	RTF \objdata at offset 0x7DA	65990 bytes
`objdata_01_off00006f89.bin` `2adf4ea78d48e8d2bce8726b21b9d6151fb9293d6b3e66298fb3b265cc035142`	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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