Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 9069c91506f33cff…

MALICIOUS

RTF / .DOC

4.0 KB First seen: 2023-05-26
MD5: d9137d4b99c0e69da7838fdce2a9c61b SHA-1: d4617dbfc2e29a3b0663ef9821eb3b021eb8916e SHA-256: 9069c91506f33cff670b372cc2505fc180a18e4dd19fffe381568f6bf7d0b4b9
60 Risk Score

Malware Insights

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

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability when the object is activated. This is a common technique for delivering malicious payloads. No specific family could be identified from the available heuristics.

Heuristics 2

  • \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_off00000091.bin
624e3e5b589fa632bdbcbc6b9cc3133b430cd3a5b9cd44292a3b0a688628203c
rtf-objdata-decoded RTF \objdata at offset 0x91 1933 bytes