Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 7dbe8c332af586f6…

MALICIOUS

RTF / .DOC

89.6 KB
MD5: 1a36eb8b33b1270ebcf212aa57dd2c75 SHA-1: e0eee33bd86f043d3ce6d17b92a929de98fa9269 SHA-256: 7dbe8c332af586f691de4811f1ca3dbec1b5176e10deb28d485158364ad38250
100 Risk Score

Malware Insights

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

The RTF document contains OLE object data and uses an \objupdate directive, indicating an attempt to exploit OLE object activation. This suggests the file is designed to execute arbitrary code upon opening, likely delivered via spearphishing. No specific family could be identified, and no further IOCs were extracted.

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_off000018e5.bin
4b773459cb3be80491722b0f8e7d22cb30394d7c634103c19470ce78746a153b
rtf-objdata-decoded RTF \objdata at offset 0x18E5 4796 bytes