Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 c953f438f938b19c…

MALICIOUS

RTF / .DOC

10.6 KB First seen: 2023-05-30
MD5: 4e5590c864ee1d5906ebf811b4c2a093 SHA-1: 0c9f7c2b07aba33294ac1ee942281e9b0ecb1e13 SHA-256: c953f438f938b19c7f0592672243a9950478356115eab1ec5d81bac1621e166f
60 Risk Score

Malware Insights

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

The RTF file contains OLE object data and an \objupdate directive, indicating an attempt to exploit OLE activation. This suggests the file is designed to deliver a secondary payload when opened. No specific family could be identified from the available heuristics.

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_off000018e9.bin
cd72c75a04d2ac204a046ab624972eaebbb7a900bde473cfe766448aaa814851
rtf-objdata-decoded RTF \objdata at offset 0x18E9 2184 bytes