RTF malware analysis — malicious · 8e2f1bf1cf0ee219

MALICIOUS

RTF

161.1 KB Created: 2020-06-18 21:55:00 First seen: 2020-07-24

MD5: b19f5719b3443ad8d2585e8eb4eebc80 SHA-1: e09c6224d75820322c1a4ee51969220afd200159 SHA-256: 8e2f1bf1cf0ee21907de4bb0ee23a4bfc06afd1e2776a76f9fe1bb0c728a5414

82 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF file contains OLE object data and an ".objupdate" directive, indicating an attempt to exploit OLE object activation. This suggests the file is designed to execute embedded malicious content, likely leading to client-side exploitation. No specific family could be identified.

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 1 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.microsoft.com/office/word/2003/wordml In RTF body

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off000028e1.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x28E1	39982 bytes
SHA-256: `4454b253fd16c6b4c793395ec7755892530242055776942272152f6850d2b9de`

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