Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 fbfa7124152a1eae…

MALICIOUS

RTF / .DOC

10.5 KB First seen: 2023-05-30
MD5: 2bf876f686cc8ae5c8c30d0404ba4a78 SHA-1: 4dc16f0ba911971bb4e643a0ff9316ea81ca3e30 SHA-256: fbfa7124152a1eae57fb6d0f474a0072c01a89795c365252462c50a9b2623455
60 Risk Score

Malware Insights

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

The RTF document contains OLE object data and triggers an object update, indicating an attempt to exploit vulnerabilities or execute embedded code. The high-severity RTF_OBJUPDATE heuristic strongly suggests that the file is designed to automatically activate embedded OLE objects, likely to download and execute a secondary payload. No document body text or scripts were extracted, limiting further analysis of the specific lure or payload.

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_off000018ef.bin
9c7acec2f0c1d51c66d825f9a8ff7e4458b59f014ae4ffc491dfad021bf552da
rtf-objdata-decoded RTF \objdata at offset 0x18EF 2144 bytes