MALICIOUS
129
Risk Score
Malware Insights
MITRE ATT&CK
T1204 User Execution
T1204.002 Malicious File
T1059 Command and Scripting Interpreter
The sample is an RTF document that contains an embedded OLE object, specifically targeting the Equation Editor vulnerability. The ".objupdate" directive indicates that the OLE object will be activated automatically upon opening the document, leading to the execution of the embedded exploit. This exploit likely downloads and executes a second-stage payload, although no specific URLs or scripts were extracted.
Heuristics 4
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Equation Editor CLSID critical RTF_EQUATION_EDITOREquation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
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\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.
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OLE object data medium RTF_OBJDATARTF contains 1 \objdata section(s) — embedded OLE objects
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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.
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
objdata_00_off00001ac8.bin673ca3fbe77715d0ecccbc53072a99f09898d924def61166064db6cdada9ac81 |
rtf-objdata-decoded | RTF \objdata at offset 0x1AC8 | 104014 bytes |
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Detection
ClamAV:
No threats found
Obfuscation or payload:
likely
Carved artifact entropy is 7.96, consistent with packed or encrypted content.
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