Malicious RTF — malware analysis report

Static analysis result for SHA-256 657d40554a0acbe2…

MALICIOUS

RTF

7.9 KB First seen: 2020-12-28
MD5: a58f4f237ef5b72ff6911ec601b92419 SHA-1: f667fb002ce64d696bb8df3c10257bf11bc31616 SHA-256: 657d40554a0acbe250d14995cdf444f2cc2413a19c5d483038815e78a1a649d9
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 3562 bytes
SHA-256: ba3368d89fd465e43d8b8567f6cdf1df55c403dc709731fa436a44dd92418baa

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