Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 e30642ebcdcddafe…

MALICIOUS

RTF / .DOC

1.74 MB Created: 2019-09-17 13:59:00
MD5: 03bda58eb003a8d9863df8dfc7c3251a SHA-1: b7140850b8b2d888316cbb5d6a6079f491938825 SHA-256: e30642ebcdcddafefa43d5633d19bcb290f95607b2cec5589a5330cc2285a23b
80 Risk Score

Malware Insights

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

The file is an RTF document containing embedded OLE objects, with heuristics indicating the use of \objdata and \objupdate. This suggests the document is designed to exploit vulnerabilities related to OLE object activation, likely to download and execute a secondary payload. The embedded URL, though benign, is present within the document structure.

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\X\X\X\X\X\X\X\X

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off0019a158.bin
1cdecacabc7aecfb8f34687b7dda2810ee297ffafc13330de2b18f0c731a993a
rtf-objdata-decoded RTF \objdata at offset 0x19A158 1414 bytes