RTF malware analysis — malicious · ac7c590d8e77dddd

MALICIOUS

RTF

9.7 KB Authoring application: Riched20 6.2.9200 First seen: 2015-09-29

MD5: a18782e3d8e60c2089f2b1def935d190 SHA-1: 4b6ca99374b4af01134dd8dacdcaebc79ddf9e68 SHA-256: ac7c590d8e77dddd4c52cfbff0baf5ad51507a8ab08ede0705b00f1f3843e1dc

220 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF file contains OLE object data and triggers a critical heuristic for CVE-2012-0158, indicating exploitation of a vulnerability in MSCOMCTL.ListView. This suggests the file is designed to execute arbitrary code on a vulnerable system. ClamAV detections further confirm its malicious nature.

Heuristics 5

MSCOMCTL.ListView — CVE-2012-0158 high CVE related CVE_2012_0158

RTF \objdata decodes to OLE data containing the MSCOMCTL.ListView — CVE-2012-0158 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.
ClamAV: Win.Trojan.MSShellcode-6360729-4 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.MSShellcode-6360729-4
OLE object data medium RTF_OBJDATA

RTF contains 1 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
OlePres presentation stream in RTF OLE object medium RTF_OLEPRES_STREAM

RTF contains an embedded OLE object with an OlePres presentation stream. OlePres is an OLE presentation marker and is not enough on its own to identify CVE-2025-21298.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000011a.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x11A	4667 bytes
SHA-256: `cad1451e664f8494c9d0fa81884a6f37f0ed538b78520b46ffa9fbb3a6132619`
Detection ClamAV: Win.Trojan.MSShellcode-6360729-4 Obfuscation or payload: unlikely

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