Malicious RTF — malware analysis report

Static analysis result for SHA-256 43f83fda958b790a…

MALICIOUS

RTF

8.0 KB First seen: 2020-12-28
MD5: 39b9f2de182b62b7dcb51e0fa8fc46a6 SHA-1: 9d0289176f11fb79dfd053eebf3f1d7e536b56c3 SHA-256: 43f83fda958b790a699131a15b1525431379a5fbe935ee07b0ea30018df9fc83
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 3580 bytes
SHA-256: f92aaf299b4dedd978f21b5faa4f80253a3fa06d314b58773b1b8f1c662664b1

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