Malicious RTF — malware analysis report

Static analysis result for SHA-256 9ca93c2486ddb772…

MALICIOUS

RTF

9.9 KB First seen: 2023-03-07
MD5: 46ed76d1d2f6fd37e4eb4c9f07e078ca SHA-1: f8ded6d3992b85270a566be20523c5dad058cbd0 SHA-256: 9ca93c2486ddb772d48f3d619ef603070600da0e40fe16de3caae5e3b30f3735
60 Risk Score

Malware Insights

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

The RTF file contains OLE object data and uses an \objupdate directive, indicating an attempt to exploit OLE object activation. This is a common technique for delivering malicious payloads. No specific family could be identified, and no further IOCs were extracted.

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_off00000f45.bin
585be97afd39184ff218bd5cf2b1318d6842674c3ac190cdba343ea4d5ba3193
rtf-objdata-decoded RTF \objdata at offset 0xF45 1319 bytes