RTF malware analysis — malicious · dce770341f3edab6

MALICIOUS

RTF

8.4 KB

MD5: 22c1bd4cdb3a250db27061d43d76cc5f SHA-1: f8feb2a8af50f3881ce2b17d8f9a117add29119c SHA-256: dce770341f3edab6e3c6db0994d16f06e405fef9d76d6beeb3bfaec7343a6da0

180 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1559.002 Component Object Model T1059.001 PowerShell

The RTF file contains an embedded OLE object that leverages the Equation Editor vulnerability (CVE-2017-11882). This vulnerability allows for the execution of arbitrary code upon opening the document, likely to download and execute a second-stage payload. The ClamAV detection explicitly names this CVE.

Heuristics 4

Equation Editor CLSID critical RTF_EQUATION_EDITOR

Equation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
ClamAV: Rtf.Exploit.CVE_2017_11882-6584355-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Rtf.Exploit.CVE_2017_11882-6584355-1
\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_off00000043.bin` `857d7ece8bf828a24d6f0a5c5f8bac48afb4f4997e6952961085eb2aa28395e3`	rtf-objdata-decoded	RTF \objdata at offset 0x43	4164 bytes

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