RTF malware analysis — malicious · 317d6e7564bb5a20

MALICIOUS

RTF

8.4 KB

MD5: 9c26dc7c2f3edfda5d507f33a2540dbd SHA-1: 7eb410c767b1a343982d90ff2093564d6eeda561 SHA-256: 317d6e7564bb5a207b7e3c7f1fa895e0682557ba0a51515b6fc931c70b373a58

220 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious Link T1204.002 Malicious File T1059 Command and Scripting Interpreter T1059.003 Windows Command Shell

The RTF file contains an embedded OLE object that is automatically linked and updated, triggering activation. Heuristics indicate the exploitation of Equation Editor via CVE-2017-11882. This vulnerability allows for arbitrary code execution, likely to download and run a second-stage payload.

Heuristics 5

Equation Editor CLSID critical RTF_EQUATION_EDITOR

Equation Editor OLE CLSID found inside an OLE object — exploited by CVE-2017-11882 / CVE-2018-0802 / CVE-2018-0798
ClamAV: Rtf.Exploit.CVE_2017_11882-6584355-1 critical CLAMAV_DETECTION

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000006a.bin` `35e45c7523c72bef1a5d95b3f694fdaceb22595deb0460c3e33a044c4a63f150`	rtf-objdata-decoded	RTF \objdata at offset 0x6A	4168 bytes

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