Malicious RTF — malware analysis report

Static analysis result for SHA-256 93319275e6a7705b…

MALICIOUS

RTF

26.1 KB
MD5: 5ebc54ff148cfb126169f6b4a9286f8f SHA-1: d4f3e836d52f9a71da31ada4debb5bc4d9f35f6f SHA-256: 93319275e6a7705beb1bc510a1eb3728d02706cd416e8daee48916300425eaf3
100 Risk Score

Malware Insights

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

The RTF file contains OLE object data and triggers OLE activation via \objupdate, indicating an attempt to exploit OLE vulnerabilities. The presence of an Ole10Native stream further suggests the embedding of executable content. While no specific script was extracted, the heuristics strongly point to a malicious RTF document designed to leverage OLE object execution for delivering a 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 2 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00001c6e.bin
0bbbe80dbc9ac7b72f7284dd70219b26ee3a3771bbc702bab2e09a4e4595c4c4
rtf-objdata-decoded RTF \objdata at offset 0x1C6E 4207 bytes