RTF malware analysis — malicious · eddf36cead88310f

MALICIOUS

RTF

263.6 KB First seen: 2019-03-10

MD5: dfb78ea3a9b6a838b5bc7ed5002037d2 SHA-1: ece81487216a729cd5983421c3eb6965f219460b SHA-256: eddf36cead88310f34fe85a98e61943dd885d6e92495e2f1b62781085c589b7a

80 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF file contains embedded OLE objects that are forced to activate via the \objupdate directive. This indicates an attempt to exploit OLE object activation for client-side execution. As no specific family could be identified and no further IOCs were extracted, the confidence is moderate.

Heuristics 3

\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 1 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off000015c9.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x15C9	4143 bytes
SHA-256: `215e4af4cc11941f339a1874a21497f58d9f4d3b8db3ca67f8e87a7fb068b327`

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