Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 3077eb11b2b577d6…

MALICIOUS

RTF / .DOC

4.0 KB First seen: 2023-10-02
MD5: a987537f359de9010905273f3d1bac6a SHA-1: 6dcc57cd338b5e3ebe59dbb8b5167ad9a4e21b7e SHA-256: 3077eb11b2b577d6d22fe5efaa8728192132a62a821dfe81af9f5626091c84b9
60 Risk Score

Malware Insights

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

The RTF document contains an embedded OLE object, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that this object is designed to be activated automatically upon opening, which is a common technique for exploiting vulnerabilities in older Office versions. The embedded object is likely a malicious payload designed to execute arbitrary code.

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_off0000008b.bin
ae01295c26f2c5fa3638292bacb75809f508cd93dd7b7a5fadb0145ca0132eaa
rtf-objdata-decoded RTF \objdata at offset 0x8B 1923 bytes