Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 a3d419ecbd94816c…

MALICIOUS

RTF / .DOC

11.3 KB
MD5: 115d2fd583b842d2593adbbac661110e SHA-1: c83a214808c3505d0d5681c19b6399ac49f73a9d SHA-256: a3d419ecbd94816ce0b4088c5e813b953130b372225e13ada3a795d86a09843f
80 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The file is an RTF document containing embedded OLE objects, with heuristics indicating that the object data is present and that an \objupdate command forces OLE activation. This suggests the document is designed to exploit OLE vulnerabilities to execute embedded code. The presence of embedded URLs further supports the likelihood of a download and execution attack pattern. Confidence is moderate due to the lack of script content to confirm the exact payload execution.

Heuristics 3

  • \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
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00001a90.bin
fe7dcf1f6be5c394e76e268240c51dd88638b87f91acea310cd27e7292d90209
rtf-objdata-decoded RTF \objdata at offset 0x1A90 1647 bytes