RTF malware analysis — malicious · e63f387576728aa5

MALICIOUS

RTF

3.8 KB First seen: 2020-09-15

MD5: 6a79db3ac8cf5da30b852f7f7df42f74 SHA-1: fe86fe21e2cb13b590f00b8965b3c524b398ccb5 SHA-256: e63f387576728aa5b18cc7a2514cb3b45df942d0610af58ff38a72a7b3945b1f

80 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF document contains OLE object data which is flagged as suspicious and potentially contains shellcode. The \objupdate directive indicates an attempt to force OLE activation, suggesting an exploit is being leveraged for client execution. No document body text or scripts were available for further analysis.

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 medium 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.

Filename	Kind	Source	Size
`objdata_00_off000003b4.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x3B4	1431 bytes
SHA-256: `ed779516293849656b8b3d4326d1edad0ccd69d8093f7b05948e30f873dbf444`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis found candidate code region(s). Indicators: SC_GETPC_CALL

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