RTF / .DOC malware analysis — malicious · dbeac3ed65624e61

MALICIOUS

RTF / .DOC

271.5 KB

MD5: 346040d0d23a6af420bbc27a9e75ad6c SHA-1: dc46c8ca70da32f5ff84fb124719051c55beb4f1 SHA-256: dbeac3ed65624e617c3c9c265dade3eba2279e489076f370fc617982870c2a56

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File T1027 Obfuscated Files or Information

This RTF document contains multiple OLE objects, including automatically linked and updated objects, which are designed to activate embedded content. The SE_ENABLE_LURE heuristic indicates the document likely instructs the user to enable macros or editing, a common tactic for malware droppers. The embedded OLE objects are the primary mechanism for delivering a malicious payload, likely by exploiting OLE activation features to execute arbitrary code.

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_off00000969.bin` `bb3aae88d5a6a779706ea3959c0b30a5eb0859d589871dbd6e2509898b78b6be`	rtf-objdata-decoded	RTF \objdata at offset 0x969	41398 bytes
`objdata_01_off00015a66.bin` `9d9bc825f2fa5e0ed8db7dce6823e199ad9c775873472d42887214589f205470`	rtf-objdata-decoded	RTF \objdata at offset 0x15A66	2632 bytes
`objdata_02_off00017009.bin` `44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037`	rtf-objdata-decoded	RTF \objdata at offset 0x17009	12297 bytes

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