RTF malware analysis — malicious · ce6980719c9bef83

MALICIOUS

RTF

1.01 MB Created: 2018-01-30 06:51:00 First seen: 2019-11-20

MD5: 477b7ded65b3571e9c46cc60b83b9e88 SHA-1: 696daa4b7bef15c69f721de58bd699f158a338ed SHA-256: ce6980719c9bef837504de67121d4bb17dd0649a58d762314f0adf63b01966ac

322 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF document contains multiple indicators of exploitation, including CVE-2017-8570 and CVE-2017-8759, which are known to drop scripts. The presence of OLE object data and excessive hex data suggests the embedding of a malicious payload. While no specific script was directly extracted, the exploitation techniques strongly indicate the execution of a secondary stage, likely a downloader or dropper.

Heuristics 10

Composite Moniker — CVE-2017-8570 (drops SCT script) critical CVE related CVE_2017_8570

RTF \objdata decodes to OLE data containing the Composite Moniker — CVE-2017-8570 (drops SCT script) CLSID — the vulnerable control/moniker is embedded directly in the document's object stream, the delivery shape of this exploit. RTF objects auto-render when Word opens the file.
CVE-2017-8759 — MSXML SAX OLE activation critical CVE likely CVE_2017_8759

RTF contains a hex-encoded OLE1 object for Msxml2.SAXXMLReader.6.0 followed by an embedded OLE compound document, and the document requests OLE activation. This matches the RTF staging shape used for CVE-2017-8759 SOAP/WSDL parser code injection.
Automatically linked OLE object high RTF_OBJAUTLINK

RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
Package object class high RTF_OBJCLASS_PACKAGE

OLE Package object — can wrap arbitrary files
Large hex data blocks in OLE object high RTF_EXCESSIVE_HEX

RTF contains ~1004KB of hex-encoded data inside \objdata sections — may hide a payload
OLE object data medium RTF_OBJDATA

RTF contains 2 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
OlePres presentation stream in RTF OLE object medium RTF_OLEPRES_STREAM

RTF contains an embedded OLE object with an OlePres presentation stream. OlePres is an OLE presentation marker and is not enough on its own to identify CVE-2025-21298.
Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.microsoft.com/office/word/2003/word In RTF body

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00005e77.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x5E77	498195 bytes
SHA-256: `d8b996ae91c6acae7ea486f311f5ee0871b1018d1fc9a08da8201ab5e3878b79`
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).
`objdata_01_off000fb3a4.bin`	rtf-objdata-decoded	RTF \objdata at offset 0xFB3A4	5600 bytes
SHA-256: `18e4ca4cbe7da26186a9b66ead15796d51bcf5cee4b4d8a76e95efa6a4ce2153`

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