Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 06830db1aa3ac6ae…

MALICIOUS

RTF / .DOC

12.9 KB First seen: 2022-04-14
MD5: 134f5374180706f6a90aa16c3041f045 SHA-1: 4dafb03648b6b788b7a98f7efbf7ffb67099bbb0 SHA-256: 06830db1aa3ac6ae7cf27c5b75a18607eda3406b4457c1bece07c1bda41e5e67
60 Risk Score

Malware Insights

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

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to exploit OLE object activation for code execution. This is a common technique for delivering malicious payloads via documents. The SHA256 hash of the file is provided as a primary indicator.

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_off0000206a.bin
3d993c13540deefa30f93b3f1f705e296c944ec52668c806a1351502a2739838
rtf-objdata-decoded RTF \objdata at offset 0x206A 1550 bytes