Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 a0a088ddefea91b0…

MALICIOUS

RTF / .DOC

97.1 KB
MD5: 25a6c39dbc117a7596c857dbec4e5d93 SHA-1: 7f72c84fb222f0dd96a31e78b34473bde3e0fc81 SHA-256: a0a088ddefea91b081ce3eef407d62a9ebbab95b010c23d4afcbaed4896ea61f
60 Risk Score

Malware Insights

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

The file is an RTF document containing embedded OLE object data, as indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic firing at offset 0x1FB0 suggests that the embedded object is designed to be automatically activated upon opening the document, which is a common technique for delivering malicious payloads. No document body or script content was available for further analysis, limiting the ability to determine the exact nature of the payload or its specific family.

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_off00001fd4.bin
5d696b6642d32b758068d5d688ef24dd9255980a70c93a69b7e8da2c3079557c
rtf-objdata-decoded RTF \objdata at offset 0x1FD4 1946 bytes