RTF malware analysis — malicious · 3004badaf12ae9cd

MALICIOUS

RTF

228.8 KB

MD5: ba5cfcfaddff26923dac97f0892f7086 SHA-1: 500da61da09fac2bd898230de5daa9ffec8c0d74 SHA-256: 3004badaf12ae9cdc09f6102d7383e0d46483ec3746810d1a6eaa39ee1cff727

220 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF file contains OLE object data and triggers heuristics related to CVE-2017-8570, indicating it exploits this vulnerability. This exploit is known to drop and execute a script, likely a second-stage payload, which is a common technique for initial execution and further compromise.

Heuristics 6

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.
Composite Moniker in RTF OLE object high CVE related RTF_COMPOSITE_MONIKER_RELATED

RTF 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.
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.
\objupdate forces OLE activation high RTF_OBJUPDATE

RTF 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_OBJDATA

RTF contains 3 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off000007da.bin` `51ed4c2f91eb5f06856e10d7b23695ff9dccfabc849843200afb909c2e510c9d`	rtf-objdata-decoded	RTF \objdata at offset 0x7DA	20579 bytes
`objdata_01_off0000afaf.bin` `1af484323aa51f0bc067b498458ed2106db428c7b743185ac9a6e18e7b648e31`	rtf-objdata-decoded	RTF \objdata at offset 0xAFAF	2632 bytes
`objdata_02_off0000c552.bin` `44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037`	rtf-objdata-decoded	RTF \objdata at offset 0xC552	12297 bytes

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