RTF malware analysis — malicious · 216e0f960afa28ba

MALICIOUS

RTF

9.5 KB

MD5: 41820dc68297b85f7dc85540a3423c1d SHA-1: 5292d196dffee7a5f3ce6e2a1fdf7842802ed5fd SHA-256: 216e0f960afa28ba0c9f7f60ca7261bed994a3c5c3e218a2cfad7a0af9011c2d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The sample is an RTF document that contains an embedded OLE object, specifically targeting the Equation Editor vulnerability. This technique is commonly used to deliver malicious payloads. The RTF_EQUATION_EDITOR and RTF_OBJUPDATE heuristics strongly indicate exploitation of this vulnerability. While no specific URLs or scripts were extracted, the nature of the exploit suggests the document's primary purpose is to download and execute a secondary-stage payload.

Heuristics 3

Split hex Equation Editor ProgID + OLE object critical RTF_EQUATION_EDITOR

RTF embeds the Equation.3 ProgID as hex bytes near OLE object activation and splits the byte stream with whitespace or an ignorable RTF group. This is an Equation Editor OLE activation surface commonly used by CVE-2017-11882 / CVE-2018-0802 exploit documents.
\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_off00000b0a.bin` `307ab5b2a90adc9ed3522939582825c36f37f6f9ac45b527943745cbde8fd21e`	rtf-objdata-decoded	RTF \objdata at offset 0xB0A	2177 bytes

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