MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The RTF document contains an OLE2Link object that is automatically activated via \objupdate, exploiting CVE-2017-0199 or CVE-2017-8759. This mechanism is used to download and execute a second-stage payload from a remote source embedded within the OLE moniker stream. The document body content appears to be related to shipping and payment, potentially serving as a lure.
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_off000000d3.bin |
rtf-objdata-decoded | RTF \objdata at offset 0xD3 | 3115 bytes |
SHA-256: 7a8670d06bce6688f6c5fd36f027826a9b76a99f51d3f66a00675855306ce34e |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.