Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 b72d9494401d22ea…

MALICIOUS

RTF / .DOC

4.0 KB First seen: 2023-02-13
MD5: b985671bebf3c3bed31b6fd7a95b5e97 SHA-1: 221d918723cfb006c6e468f36280e9a690c35758 SHA-256: b72d9494401d22ea84f4776ebab4d635cceaec8b97e82a3796373798521787d9
60 Risk Score

Malware Insights

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

The RTF document contains an embedded OLE object, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that this object is designed to be automatically activated upon opening, which is a common technique for exploiting vulnerabilities to download and execute further malicious content. No specific family could be identified from the available evidence.

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_off00000074.bin
af273fe2ed61f55a11a5e1ea693d783a1893a1a0c28efb0fba6343b0966b3136
rtf-objdata-decoded RTF \objdata at offset 0x74 1927 bytes