Malicious RTF — malware analysis report

Static analysis result for SHA-256 5e3a862661075c81…

MALICIOUS

RTF

60.5 KB
MD5: 0e368e5317eaa847825d2e6e959686e8 SHA-1: 4ee15e13b4e8953bf6400f8b098a8b946ad3fd80 SHA-256: 5e3a862661075c8185c0806b44c48e1864c86552c52e6b1bff7e7bd7828e496e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The RTF file contains an embedded OLE object that leverages a known vulnerability in the Equation Editor (CVE-2017-11882). This vulnerability allows for the execution of arbitrary code upon opening the document, likely to download and execute 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_off00000112.bin
e5f4f241d4fdeb2dae9a7d69d6f9ec157e37392fa78c97805c8bec228453a345		 rtf-objdata-decoded RTF \objdata at offset 0x112 3631 bytes

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