Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 555cc578b2e655bb…

MALICIOUS

RTF / .DOC

4.0 KB
MD5: 2efd5c28847485d9629a784db518d7c4 SHA-1: 6b3cc8b99f66db0176d1cae8fa000a0b698f8cb0 SHA-256: 555cc578b2e655bbcc9d668c4e8e5199dfc413de8f2ccfc613c74e7622626557
80 Risk Score

Malware Insights

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

The RTF document contains embedded OLE objects, indicated by RTF_OBJDATA and RTF_OBJEMB heuristics. The RTF_OBJUPDATE heuristic suggests that these objects are designed to be automatically activated upon opening, likely leading to the execution of malicious code. The presence of a numerical string in the DOC BODY is not indicative of a specific lure, and no scripts were extracted, making the exact payload and delivery mechanism unclear.

Heuristics 3

  • \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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000068.bin
0d7489a28c699d1911dcd184c6e9fef55b3e7a6b2343ef44da7ee75aa4d7541b
rtf-objdata-decoded RTF \objdata at offset 0x68 1914 bytes