Malicious RTF — malware analysis report

Static analysis result for SHA-256 b71acb51a60e7e7a…

MALICIOUS

RTF

7.9 KB First seen: 2020-12-28
MD5: 5cd495427768084d498e74b7c99e9d80 SHA-1: 61e7b037eb2b1c6d7e203e6e3eb51581cababcc2 SHA-256: b71acb51a60e7e7a9d00401ab6199bc560464c8fff325276b2f07251dc8dba95
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 3574 bytes
SHA-256: 8b295183706bf3bd1742583a10322dfedff17d2e7589f5d55666923562e70671

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