Malicious RTF — malware analysis report

Static analysis result for SHA-256 fb6856cfbe98c74a…

MALICIOUS

RTF

5.4 KB First seen: 2020-12-28
MD5: 4339cb0cb0a06d795fb1136f0eaac23e SHA-1: ac0d4f7cd96f7e87d1a6eeadf1895f27d4b1620d SHA-256: fb6856cfbe98c74a5dcf9be76a669157aaa6c0cd2a42ecdc3c91bf135aaddb45
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 2377 bytes
SHA-256: 6a995a74d2e890517f183f09aac7946dfba99b31eaecf0f978d3c97539b511c9

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