RTF / .DOC malware analysis — malicious · d3ce772b44506904

MALICIOUS

RTF / .DOC

227.7 KB

MD5: 5beb508b242696bcebbbee8818e4ed9d SHA-1: 2d4580071df4452e362449b6c66adaf2e87eaee4 SHA-256: d3ce772b44506904d48a303ad8a6bcb319070ebf63b3bfb44dc1a2f34398963e

180 Risk Score

Malware Insights

MITRE ATT&CK

T1204 User Execution T1204.002 Malicious File T1566 Phishing T1566.001 Spearphishing Attachment

The RTF document contains multiple OLE objects, including automatically linked and updated objects, which are designed to be activated by the user. The presence of a 'Macro/content-enable lure' heuristic indicates the document likely instructs the user to enable content, a common tactic for malware droppers. This suggests the embedded OLE objects are intended 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.
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 3 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
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_off00000965.bin` `ee95ae870c1fe94f6c45aca41018a8138135deb4c6987ca2a33819f5a6c24bce`	rtf-objdata-decoded	RTF \objdata at offset 0x965	19844 bytes
`objdata_01_off0000ab42.bin` `18cff8ef194415d33763880bf64011d23305e4b9143b76244b89e1c53b70a0d5`	rtf-objdata-decoded	RTF \objdata at offset 0xAB42	2632 bytes
`objdata_02_off0000c0e5.bin` `44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037`	rtf-objdata-decoded	RTF \objdata at offset 0xC0E5	12297 bytes

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