Malicious RTF / .DOC — malware analysis report

Static analysis result for SHA-256 b400e01685e48f70…

MALICIOUS

RTF / .DOC

227.5 KB
MD5: fdcad35dfa5ea06075403dbff7149b95 SHA-1: d1ea886f058423a84cf18ae86bb54c05d63a3b9e SHA-256: b400e01685e48f709803813edfbd15ee8e558ecabf2a89efa96766fbb1bb1583
180 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model T1204.002 Malicious File

The RTF document contains multiple OLE objects, including automatically linked and updated objects, which are designed to activate embedded content. The presence of the SE_ENABLE_LURE heuristic indicates the document likely instructs the user to enable content, a common tactic for macro-based malware droppers. This suggests the file's purpose is to exploit OLE object activation to deliver a secondary payload.

Heuristics 6

  • Composite Moniker in RTF OLE object high CVE related RTF_COMPOSITE_MONIKER_RELATED
    RTF contains Composite Moniker CLSID in OLE object context, but no nearby scriptlet/SCT payload was confirmed. Treat as related moniker attack-surface evidence rather than proof of CVE-2017-8570 exploitation.
  • Automatically linked OLE object high RTF_OBJAUTLINK
    RTF contains \objautlink — an automatically linked OLE object surface that can be updated or activated when Word opens the document.
  • \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 3 \objdata section(s) — embedded OLE objects
  • Embedded OLE object medium RTF_OBJEMB
    RTF contains \objemb — embedded OLE object
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
objdata_00_off00000bac.bin
fcc5acc99dd47c3576ff0723ce8902e91a297264b1c37b9bc4955e69133c6bc0		 rtf-objdata-decoded RTF \objdata at offset 0xBAC 19468 bytes
objdata_01_off0000aa7b.bin
18cff8ef194415d33763880bf64011d23305e4b9143b76244b89e1c53b70a0d5		 rtf-objdata-decoded RTF \objdata at offset 0xAA7B 2632 bytes
objdata_02_off0000c01e.bin
44deae4627fee3c44f54d5bd10477ec2e17f4c08135f08e2417832e36d10d037		 rtf-objdata-decoded RTF \objdata at offset 0xC01E 12297 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.