Malicious RTF — malware analysis report

Static analysis result for SHA-256 68d58f048d39c51c…

MALICIOUS

RTF

52.2 KB
MD5: fba2523dcd2a3e587e0756d22976c7e3 SHA-1: eff650d49c8a41f769bbffab09f0fedb8d7c5db6 SHA-256: 68d58f048d39c51c99b5b6a1042ed39c18178e52e63b89130f4657d2631d97a2
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, CVE-2017-11882, within the Equation Editor component. This exploit allows for the execution of arbitrary code on the victim's machine, indicating a malicious intent to compromise the system.

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_off0000010d.bin
f4496f366825ce6d18d91e9acce796506c9f4589dabcb8eec5a506d3b14f1f7b		 rtf-objdata-decoded RTF \objdata at offset 0x10D 3631 bytes

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