Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 890aeb2e38af92e6…

MALICIOUS

RTF / .DOC

521.0 KB
MD5: 0095db0e44cbdf1d07247d84469435ee SHA-1: 84745c542d7d1e0cb8c03ac4549a9c3f4cb40153 SHA-256: 890aeb2e38af92e6e8cce8930d1fbfc4119418fcdef0bd0e6a055f3ec2619ca9
190 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 the document, likely leading to the execution of malicious code. No specific family could be identified from the available evidence.

Heuristics 4

  • \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 2 \objdata section(s) — embedded OLE objects
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • 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_off000014fe.bin
70fe01507999b428c5160abf20d94e0cf15bb4a2339dc2d62c319f3318fb68fd
rtf-objdata-decoded RTF \objdata at offset 0x14FE 176187 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.98, consistent with packed or encrypted content.