Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 3d1342d93c5f1ea3…

MALICIOUS

RTF / .DOC

87.6 KB
MD5: da80d5001aa61165e385a535fa53c606 SHA-1: a58bbd78c944ed6df65ad4b0b7e046220ebd3e1d SHA-256: 3d1342d93c5f1ea3a33ac9f4c0398bb06595a307d53dae9fefcaa0d48540d179
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The RTF document contains OLE object data and an \objupdate directive, indicating it's designed to embed and activate external content. While no specific payload or script was directly extracted, the presence of OLE objects strongly suggests an attempt to deliver a malicious payload via embedded objects. The high-confidence heuristic for \objupdate points to a mechanism for forcing OLE activation, a common technique for exploiting vulnerabilities or launching embedded executables.

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 2 \objdata section(s) — embedded OLE objects

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00002065.bin
d715c09f9a35b8c062831132e80bc0e3a73765d1115dad154f9409fde7640e53
rtf-objdata-decoded RTF \objdata at offset 0x2065 1495 bytes