Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 4113a243c8b90f18…

MALICIOUS

RTF / .DOC

71.5 KB
MD5: 9749733175bade037981ddfe915d483c SHA-1: 238f3bf35a6a23bb28aa4009c6e06001e740a7d5 SHA-256: 4113a243c8b90f18afe4f833532069d4a447c7f970971d4fff9088f3b81511c1
60 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious File Execution T1059 Command and Scripting Interpreter T1566 Phishing

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability related to OLE object activation. This suggests the file is designed to execute arbitrary code upon opening, likely to download and run a secondary payload. The lack of readable document body text prevents a more specific assessment of the lure, but the technical indicators point to a malicious exploit delivery mechanism.

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_off0000121a.bin
0c7ebf43734336efb15d3359f2ab204f74c274ea73fd8c3a98449b7dd7416c64
rtf-objdata-decoded RTF \objdata at offset 0x121A 3736 bytes