RTF malware analysis — malicious · fdb54bcd1882f506

MALICIOUS

RTF

9.1 KB First seen: 2019-05-31

MD5: 797e8081119ea7a5669b0e9f588c049f SHA-1: 675994ca20182b5749d155d496f4dab3b3c0dd4d SHA-256: fdb54bcd1882f5063baab4aa278a5988c407d391e3da5ac156f65a92832412d0

180 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers an exploit targeting the Equation Editor vulnerability (CVE-2017-11882). This exploit allows for arbitrary code execution upon opening the document. The presence of the ".objupdate" directive further indicates an attempt to force the activation of the embedded OLE object, confirming the exploitation attempt.

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_off0000003c.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x3C	4645 bytes
SHA-256: `44d588d6e4e82f149bbc9f2534fdc5c8d49af4178b6732815b295e6f305bf430`

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