Malicious RTF — malware analysis report

Static analysis result for SHA-256 c6c8db711d45ac6d…

MALICIOUS

RTF

53.7 KB
MD5: 0c601cc3d9217304fee4d796aa623046 SHA-1: 9e69d2d42208f7a5e16e1c9191f881e5c3f6310b SHA-256: c6c8db711d45ac6d0f5a8253e5f9763f84475fb75dfbfeecbfa30b878beb0166
160 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 in Microsoft Equation Editor (CVE-2017-11882). This vulnerability allows for the execution of arbitrary code, likely to download and run a secondary payload. No specific family could be identified from the available evidence.

Heuristics 4

  • 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.
  • Equation Editor CLSID critical 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_off00000109.bin
0052836d009ecbbb83ab9233b9fba5354a310db515487e3efc42ebdc74497c21		 rtf-objdata-decoded RTF \objdata at offset 0x109 3631 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.