RTF malware analysis — malicious · 02a1a23b5115bc55

MALICIOUS

RTF

14.1 KB First seen: 2018-10-07

MD5: 336544840cb57cdedfe446ec58f28e15 SHA-1: 921947010566b1b7853a1df8bc2671c17caf265c SHA-256: 02a1a23b5115bc554fd3da4e30930628864baad369c68897fa12984571ae3e14

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The RTF document contains embedded OLE object data, indicated by RTF_OBJDATA and RTF_OLE10NATIVE_STREAM heuristics. The RTF_OBJUPDATE heuristic suggests that the embedded object is designed to be activated automatically, likely leading to the execution of a malicious payload. No specific family could be identified, and no further IOCs were extracted.

Heuristics 3

Ole10Native stream in RTF OLE object high CVE related RTF_OLE10NATIVE_STREAM

RTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
\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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00000801.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x801	4130 bytes
SHA-256: `34ab9c310b6bb13af33a62475772e1eeb034f00b738635b2d9dd772db4ae5ef3`

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