Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 bacf6fd16f8a3519…

MALICIOUS

RTF / .DOC

147.0 KB
MD5: 34991dea69f4b5d38dd7658995786b34 SHA-1: 38a76388f30384e765803ff3e46b8a149fed0739 SHA-256: bacf6fd16f8a3519c45e4fc6354d17ffc5e1f026c9eb9f481a416dd72a7aef5d
60 Risk Score

Malware Insights

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

The RTF document contains OLE object data and a ".\objupdate" directive, indicating an attempt to embed and activate external content. While no specific script or URL was directly extracted, the presence of these RTF-specific heuristics strongly suggests a malicious intent to exploit OLE object activation for payload delivery. The file's SHA256 hash is included as an IOC.

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_off0000177f.bin
08e66ebecf8728b97d14f28ca3edf48da1f66423f47c457ead266137588c0e6b
rtf-objdata-decoded RTF \objdata at offset 0x177F 4183 bytes