Malicious RTF — malware analysis report

Static analysis result for SHA-256 d19bb63606697bde…

MALICIOUS

RTF

162.6 KB
MD5: 8c1335055dd1e22049997752eff0ad69 SHA-1: 44b818aff48952eef5e0130c8eff6ef1a117fd73 SHA-256: d19bb63606697bde761ef709b276ed3fa98435ba3a3d5cf56503c8c09930ae6e
100 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF file contains an embedded OLE object that triggers a critical vulnerability, CVE-2017-11882, in Microsoft Equation Editor. This exploit allows for arbitrary code execution, indicating a malicious intent to compromise the user's system. No document body or script content was available for further analysis.

Heuristics 3

  • CVE-2017-11882 — Equation Editor FONT record overflow critical CVE likely CVE_2017_11882
    Equation Editor MTEF contains an overlong FONT typeface field, the vulnerable copy primitive for CVE-2017-11882. This is stronger evidence than the Equation Editor CLSID alone because it identifies the malformed record that drives code execution in EQNEDT32.EXE.
  • 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_off00002395.bin
840881c4ea4b10a6bd2f2fde705a854ade6e8836d7bd85fde9067bd929bdc614		 rtf-objdata-decoded RTF \objdata at offset 0x2395 28445 bytes

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