Malicious RTF — malware analysis report

Static analysis result for SHA-256 f87e1af1decb3160…

MALICIOUS

RTF

71.4 KB
MD5: d60490f56609210cb83b4143686d8324 SHA-1: f3a8f05062a6d8c619cf19ac71aa5fe13e7fbb8a SHA-256: f87e1af1decb3160dc8834386b8939a4ad528f851a318935ad62dd1fa4ed6bfb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution

The RTF document contains an embedded OLE object that triggers a critical vulnerability in the Equation Editor (CVE-2017-11882). This exploit allows for the execution of arbitrary code on the victim's machine, likely to download and run a secondary payload.

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_off00000111.bin
56166be5841e8fe66dd3f1bfc03a5304dd4763e27e0363e5e711457cc3c862ba		 rtf-objdata-decoded RTF \objdata at offset 0x111 3631 bytes

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