Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 4bcc680a0712df24…

MALICIOUS

RTF / .DOC

126.3 KB First seen: 2023-06-06
MD5: 36db3e4c8bf47343f2cf7b7052577535 SHA-1: 8c039eebd6d83bef57392ffd6e5fdb7c3936ba54 SHA-256: 4bcc680a0712df2480c9bd3542074f9e172655f406856a839e6b6daad584e622
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 OLE object activation. This suggests the file is designed to deliver a payload by leveraging a vulnerability, likely when the document is opened. The specific exploit is not detailed, but the mechanism points to a malicious document designed for exploitation.

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_off0000008e.bin
ae566c2b7adff58a2ca7b22c4bab0dcc2b8151835b8db518e1203bb873d77b4e
rtf-objdata-decoded RTF \objdata at offset 0x8E 36054 bytes