MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The RTF file contains an OLE object that is configured to automatically activate and load a remote resource, exploiting CVE-2017-0199 or CVE-2017-8759. This mechanism is used to download and execute a second-stage payload. The document body appears to be a financial document, likely a lure to trick the user into opening the malicious RTF file.
Heuristics 3
-
CVE-2017-0199 / CVE-2017-8759 (OLE2Link auto-activated remote loader) critical RTF_OLE2LINK_REMOTE_MONIKER_LOADERRTF embeds an OLE2Link object that is force-activated with \objupdate (no user interaction on open) and fetches a remote second stage — through an INCLUDETEXT/INCLUDEPICTURE field or the OLE object's own moniker. This is the OLE2Link auto-update attack path shared by CVE-2017-0199 (server returns an HTA/scriptlet) and CVE-2017-8759 (server returns a SOAP WSDL the .NET parser compiles). Office processes the fetched response through the same code path; the specific CVE depends on the now-unreachable server content type.
-
\objupdate forces OLE activation high RTF_OBJUPDATERTF 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_OBJDATARTF 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_off00000152.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x152 | 2602 bytes |
SHA-256: 6877900737988b77157247e0540e09352b37c0af5c767fe9c9a2766655d309b3 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.