Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 7275b9972f9622cb…

MALICIOUS

RTF / .DOC

11.1 KB
MD5: 9b8535b2c47028c886b7ea7a843065b6 SHA-1: e36c418e09d6dca971b70a7ae6e1248fe4bba95d SHA-256: 7275b9972f9622cb2c61308e74340c0dec7e4ba523e63d382a58202d9dd02469
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The RTF document contains embedded OLE objects, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that these objects are configured to automatically activate, which is a common technique for executing embedded exploits or payloads. The document body is heavily obfuscated and does not provide clear textual clues about the intended lure.

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 2 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off000002b5.bin
ae4598caa0fc63f7110384cfc369814c4f8e9a836225ad581c96aa13f41e3487
rtf-objdata-decoded RTF \objdata at offset 0x2B5 1691 bytes