RTF malware analysis — malicious · 332cdc236b622d6b

MALICIOUS

RTF

41.7 KB First seen: 2019-03-18

MD5: e697f3a2f7b9907608e7b8fb37855daa SHA-1: 6e19bf7a69dca498eb3b7a536c72e07623f5a457 SHA-256: 332cdc236b622d6b94759bb53728c16d3e55014e783b3135ca3c9686fdb8bb70

120 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The file is an RTF document identified by ClamAV as Doc.Exploit.CVE_2017_11882-6934206-0, indicating exploitation of the CVE-2017-11882 vulnerability. The presence of OLE object data and an \objupdate directive strongly suggests that the document is designed to trigger an exploit upon opening. This exploit likely facilitates the execution of arbitrary code, enabling the download and execution of a subsequent malicious payload, consistent with a spearphishing attachment delivery method.

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_off0000087e.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x87E	5765 bytes
SHA-256: `c9c7b5d9b39f1fede3869b5107a05f183a388ccec51ae8193316199a230a6f09`

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