Malicious RTF — malware analysis report

Static analysis result for SHA-256 aa25c50a7430d027…

MALICIOUS

RTF

48.3 KB First seen: 2021-02-18
MD5: 1efdb63fd54a959b758bbd4ed3c38187 SHA-1: d177f042687e1a3554f8b373a597c12ba3a30a0d SHA-256: aa25c50a7430d02767fa523574d44054fd73fb857bf8f93790f37d6546813eed
180 Risk Score

Heuristics 4

  • 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
  • ClamAV: Rtf.Exploit.CVE_2017_11882-6584355-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Rtf.Exploit.CVE_2017_11882-6584355-1
  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00003d1e.bin rtf-objdata-decoded RTF \objdata at offset 0x3D1E 12439 bytes
SHA-256: b93201f224631d97d40acc25c75a50f8a5c4934ed2c914108fc6b0c396957a42

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