Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 35e85504c7007fd8…

MALICIOUS

RTF / .DOC

331.6 KB First seen: 2022-12-07
MD5: 3d8474fd4e4948a806b54e07d4158b5e SHA-1: 55a16294a0d530231451a6142fdbd6839748b51d SHA-256: 35e85504c7007fd8c7765119d20b44f35af3717f4cfcb9f36a79e98bc935c0f2
60 Risk Score

Malware Insights

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

The RTF document contains OLE object data and uses an \objupdate directive, indicating an attempt to automatically activate embedded objects. This is a common technique for delivering malicious payloads, often through spearphishing attachments. The specific nature of the payload could not be determined due to the lack of document body text or script content.

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_off000016eb.bin
299f7cd9aba6ee4584b744cc8afe23e9a4af2ec02b3620c46226a77a1893a053
rtf-objdata-decoded RTF \objdata at offset 0x16EB 1472 bytes