RTF / .DOC malware analysis — malicious · 8b352e265d0070b5

MALICIOUS

RTF / .DOC

340.8 KB

MD5: 9544d22b71706ce3dcbdcffbca34ed91 SHA-1: 959900f3ccca819c91e5af4e6b06efe553fde5fc SHA-256: 8b352e265d0070b5853f83bea480be5b063a3a2e15fad0d4dcdaed806f8e92d4

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.005 Visual Basic

The RTF document contains multiple embedded OLE objects, with high-confidence heuristics indicating automatic linking and update triggers designed to activate them. This strongly suggests the document is a lure to execute embedded malicious content, likely a downloader or dropper, bypassing macro security. No document body or script content was available for further analysis.

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` `aa319680592f39827f4fa1597a85cc2a69972f499af46108b45efb164a5d8a12`	rtf-objdata-decoded	RTF \objdata at offset 0x965	75553 bytes
`objdata_01_off00026fe4.bin` `18cff8ef194415d33763880bf64011d23305e4b9143b76244b89e1c53b70a0d5`	rtf-objdata-decoded	RTF \objdata at offset 0x26FE4	2632 bytes
`objdata_02_off00028587.bin` `44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037`	rtf-objdata-decoded	RTF \objdata at offset 0x28587	12297 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.