Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 1d1a28210ac71b30…

MALICIOUS

RTF / .DOC

142.6 KB
MD5: d2efdbf4f26af49a44f4f753d340f4cf SHA-1: b0882e1f5ddc2dbb55839a18268a93b40c46a26a SHA-256: 1d1a28210ac71b307778a92a1bca9118f69e45f1f3765d2ddf092eeceb8305c8
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The RTF file contains embedded OLE object data, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that this object is designed to be activated, likely to execute a malicious payload. The presence of a high-entropy carved artifact further supports the suspicion of embedded malicious content. Without further script analysis or network indicators, the exact nature of the payload remains unknown, leading to an 'unknown family' classification.

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
  • Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000044.bin
b2885bff844690fae859f047a60b172e78756d68b47bd9548f9273c2199fc6e3
rtf-objdata-decoded RTF \objdata at offset 0x44 72913 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.