RTF malware analysis — malicious · 27c382c7875688db

MALICIOUS

RTF

7.2 KB First seen: 2018-11-13

MD5: 49ee599352e1cc20741f38af367acadc SHA-1: cb6648d180f0402da74270450695e2fc7b045a47 SHA-256: 27c382c7875688dbe2540e3507d36b29071beca044d10c52dc82f461856368c4

180 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF file contains embedded OLE object data and specifically triggers heuristics related to Equation Editor and object updates, indicating exploitation of CVE-2017-11882. This vulnerability allows for arbitrary code execution upon opening the document.

Heuristics 4

Equation Editor CLSID critical CVE likely RTF_EQUATION_EDITOR

Equation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
ClamAV: Doc.Exploit.CVE_2017_11882-6934206-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Exploit.CVE_2017_11882-6934206-0
\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_off0000003b.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x3B	3646 bytes
SHA-256: `1e58fc64d47598089032e15defda3dc251794a8a8cb14b4ff513485dfe1ce06d`

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