CVE-2017-11882 exploit RTF malware analysis — malicious · 7c178f6f73eda5a5

MALICIOUS

RTF

533.5 KB First seen: 2020-09-15

MD5: 4f25df76466e5ee7576a24055cb04bbc SHA-1: 9d8f7cd328a39a208bec0b8f0ecf211c3e9606d4 SHA-256: 7c178f6f73eda5a5e0a4de819f092772ad4cb0ac2f6d996f7b9b072883b04bc0

222 Risk Score

Malware Insights

CVE-2017-11882 exploit · confidence 95%

MITRE ATT&CK

T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF file contains an embedded OLE object that leverages the Equation Editor, a known vector for exploiting CVE-2017-11882. This vulnerability allows for arbitrary code execution when the object is activated, typically via user interaction or an \objupdate directive. The ClamAV detection confirms the exploit signature.

Heuristics 6

Equation Editor CLSID critical CVE likely RTF_EQUATION_EDITOR

Equation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
Ole10Native stream in RTF OLE object high CVE related RTF_OLE10NATIVE_STREAM

RTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
ClamAV: Rtf.Exploit.CVE_2017_11882-6584355-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Rtf.Exploit.CVE_2017_11882-6584355-1
\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 1 \objdata section(s) — embedded OLE objects
Suspicious extracted artifact info 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00000044.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x44	272960 bytes
SHA-256: `b30e1730160a9e0c768fd602637fd4833059a78eebb9c69062f41ebafe04ed92`
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.99, consistent with packed or encrypted content.

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