Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 32cdde71950a516a…

MALICIOUS

RTF / .DOC

1.10 MB Created: 2019-09-17 13:59:00
MD5: 1e1396f3c19ca0da565796765dfdc86e SHA-1: f88aec3c6a465ffa3f02a7310f6e68961412306f SHA-256: 32cdde71950a516a92c69589e51435fee3478d90dd715a9c624aa140d81fd8c6
80 Risk Score

Malware Insights

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

The RTF document contains embedded OLE objects, with one specifically triggering an update action that forces OLE activation. This suggests the document is designed to exploit vulnerabilities associated with OLE object handling to deliver a malicious payload. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific intent beyond OLE exploitation.

Heuristics 4

  • \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
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.microsoft.com/office/word/2{\2\i\i\i\i\i

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0010247a.bin
ed9970e056d20a9857810d54e9da0cc4ac14631baea77225b09900585ce19941
rtf-objdata-decoded RTF \objdata at offset 0x10247A 1415 bytes