Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 43288168a2a440b3…

MALICIOUS

RTF / .DOC

4.1 KB First seen: 2023-07-13
MD5: c8fef67fdc26beba461f71246096149c SHA-1: cc8a64aab97f20b531b70aeb0e52fb08097c15d9 SHA-256: 43288168a2a440b39de9d1abad631654c7bd5f3e5cb2c1baeb93f28dce6b3eb2
60 Risk Score

Malware Insights

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

The RTF document contains OLE object data and an \objupdate directive, indicating an attempt to exploit a vulnerability by forcing OLE object activation. The specific exploit targeted is not clear from the available heuristics, but the presence of these elements strongly suggests a malicious intent to compromise the user's system.

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_off0000008a.bin
7660617e90cf41626bb56757314e804f389b7e655cce9f17c42d740a6a188667
rtf-objdata-decoded RTF \objdata at offset 0x8A 1984 bytes