MALICIOUS
224
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The RTF file contains multiple indicators of malicious activity, including OLE object data and composite monikers related to CVE-2017-8570. This vulnerability is known to be used for dropping and executing script files. The presence of a large, high-entropy extracted artifact (objdata_01_off000001ee.bin) suggests it likely contains the dropped payload.
Heuristics 8
-
Composite Moniker — CVE-2017-8570 (drops SCT script) critical CVE_2017_8570RTF \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.
-
Composite Moniker in RTF OLE object high RTF_COMPOSITE_MONIKER_RELATEDRTF contains Composite Moniker CLSID in OLE object context, but no nearby scriptlet/SCT payload was confirmed. Treat as related moniker attack-surface evidence rather than proof of CVE-2017-8570 exploitation.
-
\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.
-
Large hex data blocks in OLE object high RTF_EXCESSIVE_HEXRTF contains ~1755KB of hex-encoded data inside \objdata sections — may hide a payload
-
OLE object data medium RTF_OBJDATARTF contains 9 \objdata section(s) — embedded OLE objects
-
Embedded OLE object medium RTF_OBJEMBRTF contains \objemb — embedded OLE object
-
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGEOne 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_URLOne 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/SMI/2005/WindowsSettings In RTF body
- http://schemas.openxmlformats.org/drawingml/2006/mainIn RTF body
Extracted artifacts 8
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00000025.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x25 | 205 bytes |
SHA-256: 980870ba17beb12f03c3941a0cfa655d820816cec9104090156a6ea6ece5ce8a |
|||
objdata_01_off000001ee.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x1EE | 877774 bytes |
SHA-256: 13d8f01de9833e115ba6017589ff8a7a8cbbcebfd148fdae9ebd0286a2174a45 |
|||
|
Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.83, consistent with packed or encrypted content.
|
|||
objdata_02_off001ae609.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x1AE609 | 990 bytes |
SHA-256: 819742f5c84cbe7b646f281a2d66b550ab90b6860c2f5bde5cdca478f30b59a9 |
|||
objdata_03_off001aedfe.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x1AEDFE | 26316 bytes |
SHA-256: 606145c7bfce5c000729bc1389ffd6453bd3c033f89d75e214b4a3ab94781620 |
|||
objdata_04_off001bbbce.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x1BBBCE | 380 bytes |
SHA-256: 17e63036be0dbac77e35be89dbbfbf4e8c5055136fd574d2fd6018a721b22af7 |
|||
objdata_05_off001bbf02.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x1BBF02 | 882 bytes |
SHA-256: e0dd860bb62dee2108b913a024deb7f63abfad8765c6af0041159382d16d8717 |
|||
objdata_06_off001bc664.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x1BC664 | 2633 bytes |
SHA-256: fe11c27d916ab897eb94064e9631d8a29c847a6db39259bef31578da8d19fdf5 |
|||
objdata_07_off001bdb7c.bin |
rtf-objdata-decoded | RTF \objdata at offset 0x1BDB7C | 2601 bytes |
SHA-256: 67ff079a9b0f053ca2843811d9da7a8fdedc7d9d377ef39d09dde148b9657c7f |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.