Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 064be3c63d30cc50…

MALICIOUS

RTF / .DOC

89.8 KB
MD5: f12fad120783cba7e40654106b0d45f4 SHA-1: ecf45b9eb87e64f633cd28998f461b3672ea6daf SHA-256: 064be3c63d30cc5070363aca588005bbeeb354613e36f067e73a6a8fafe8738a
100 Risk Score

Malware Insights

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

The RTF document contains embedded OLE object data that is triggered for activation via \objupdate. This indicates an attempt to exploit a vulnerability, likely for client execution. The presence of OLE object data and the activation mechanism strongly suggest a malicious document designed to deliver a secondary payload.

Heuristics 3

  • Ole10Native stream in RTF OLE object high CVE related RTF_OLE10NATIVE_STREAM
    RTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
  • \objupdate forces OLE activation high RTF_OBJUPDATE
    RTF contains \objupdate — forces automatic OLE object instantiation when the document is opened, bypassing user interaction. Almost exclusively seen in Equation Editor exploit documents.
  • OLE object data medium RTF_OBJDATA
    RTF contains 1 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000cd9.bin
05d7c3e1322ef63a0f7bd26fefb1816b2d9cd4ef81f04ac8b9e77010ff2a46ad
rtf-objdata-decoded RTF \objdata at offset 0xCD9 4168 bytes