Malicious RTF — malware analysis report

Static analysis result for SHA-256 89be672d59dc245d…

MALICIOUS

RTF

5.5 KB First seen: 2020-12-28
MD5: 21c8259e23bd0f7052f2a65375905b2a SHA-1: 898d9afe1ac5046644933bf5427fabc672126813 SHA-256: 89be672d59dc245de53d9c1bc31c970d5ac271deb3553de06931b54830f1c4e8
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object, specifically triggering a critical heuristic for Equation Editor. This indicates the file likely exploits a known vulnerability in Microsoft Equation Editor to achieve code execution. No document body or script content was available for further analysis.

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 2377 bytes
SHA-256: 6a995a74d2e890517f183f09aac7946dfba99b31eaecf0f978d3c97539b511c9

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