Malicious RTF — malware analysis report

Static analysis result for SHA-256 d21b7e55f3237b3e…

MALICIOUS

RTF

8.1 KB First seen: 2020-12-28
MD5: 756d29e54524130989f6d55604df590f SHA-1: c1d28b0168853b4f830dc983d0eaa668bbbcfe47 SHA-256: d21b7e55f3237b3e96769c89e200fe3b31df773d84112e7e1247cf1b5c4adb83
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that leverages a known vulnerability in Microsoft Equation Editor. This technique is commonly used to deliver a malicious payload, leading to arbitrary code execution on the victim's system. No specific family could be identified from the available evidence.

Heuristics 3

  • 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
  • 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off000001c9.bin rtf-objdata-decoded RTF \objdata at offset 0x1C9 3604 bytes
SHA-256: 9fc6db93f30def2158b13febcf0d7acd89a29d230341b09797e2630a1082d05a

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