Malicious RTF — malware analysis report

Static analysis result for SHA-256 dad3021329e2119f…

MALICIOUS

RTF

10.1 KB First seen: 2021-06-20
MD5: 99289ac1ff41dbf52074962b064a664e SHA-1: 0f90e415d56a37824b02a87eda27d30181ba240d SHA-256: dad3021329e2119faf986dd96027bb3d39e5af3e5acebb2e3d7ca09d26011aa8
180 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains embedded OLE object data that triggers the CVE-2012-0158 vulnerability. This vulnerability allows for the execution of arbitrary code, as indicated by ClamAV detections of Win.Trojan.MSShellcode. The embedded artifact is likely a shellcode payload designed to exploit this vulnerability.

Heuristics 3

  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off000000a0.bin rtf-objdata-decoded RTF \objdata at offset 0xA0 5065 bytes
SHA-256: f902fec4ffa8c69af92246741c88f570f8a6a2183559ef137b7f3df8bed6b00d
Detection
ClamAV: Win.Trojan.MSShellcode-6360729-4
Obfuscation or payload: unlikely

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