Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 9aae00a644f2758b…

MALICIOUS

RTF / .DOC

385.1 KB
MD5: d8622abeaf2c997a375a528bb96d9b24 SHA-1: 3336af6a813e3231faf31df7b01e743fe02941ef SHA-256: 9aae00a644f2758b42dc7c1d0d658f0ade125ad950f9464d969c6194451bed3f
100 Risk Score

Malware Insights

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

The RTF document contains OLE object data and uses \objupdate to force activation, indicating an attempt to exploit OLE vulnerabilities. The presence of RTF_OLE10NATIVE_STREAM further confirms the embedding of executable content within the OLE object. These heuristics strongly suggest the file is designed to deliver a malicious payload upon opening.

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 2 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off000014f4.bin
0d667dc9a7251af1cb8318ae6ed8eb30444d5b681cf21e339d03e5df889c1df9
rtf-objdata-decoded RTF \objdata at offset 0x14F4 71052 bytes