RTF malware analysis — malicious · cefd6ab28492aa8b

MALICIOUS

RTF

367.7 KB First seen: 2019-02-26

MD5: 2e8bb3a81ffa68e91a099d090f8072ee SHA-1: 8ad7f902eceb46297d5c687d4832e44ed812f061 SHA-256: cefd6ab28492aa8bfd3f0b2fdb872f791ff716fdcc0e91284f985e0768937130

120 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is an RTF document identified by ClamAV as exploiting CVE-2017-11882. The presence of OLE object data and an objupdate directive strongly suggests that the document is designed to trigger an exploit when opened. This exploit likely leads to the execution of a secondary payload, although the specific nature of that payload cannot be determined from the provided evidence.

Heuristics 3

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_off000010bc.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x10BC	99892 bytes
SHA-256: `bd52110ef1b2d44e0a0713317291fe7b464ebda70c1a865e7844b7dff8ef83c4`

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