Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 dbb9a8d74695467d…

MALICIOUS

RTF / .DOC

15.7 KB
MD5: ee4f0ee74e0170c7ae1733210d7f1a79 SHA-1: 6b8294095b415bb32543dd8077e68c51ad1bd183 SHA-256: dbb9a8d74695467d8275771763de5a45deb0f32d32b107af9c7fd50a0113316e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File T1059.001 PowerShell

The RTF document contains embedded OLE objects, with heuristics indicating that \objupdate forces OLE activation and the Ole10Native stream is present. This suggests the document is designed to exploit vulnerabilities in OLE object handling to execute arbitrary code upon opening. No specific malware family could be identified, but the attack pattern is consistent with a malicious document leveraging embedded objects for initial execution.

Heuristics 4

  • 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 2 \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_off000004d8.bin
5d32744ca4ea75d2e90eac8898226a561a4b9790d86ba2f84599677f856feee1
rtf-objdata-decoded RTF \objdata at offset 0x4D8 3670 bytes