Malicious RTF — malware analysis report

Static analysis result for SHA-256 9abb9463cae4daa1…

MALICIOUS

RTF

160.9 KB
MD5: 6264c44f5ecd5e67837aad0547abc983 SHA-1: 980636a42ab8aed35932259a177c91d61cc630b7 SHA-256: 9abb9463cae4daa13f6cfe5e1c6768dc31998d3ca75798be7e90737b37abde19
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 vulnerability allows for the execution of arbitrary code, indicating a likely exploit attempt.

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_off00002325.bin
e5b2104ec9729b53954056c2e58c1d6858c75d48db82e5ce923fd25ec4a1c0f7
rtf-objdata-decoded RTF \objdata at offset 0x2325 28445 bytes