RTF malware analysis — malicious · 5a619d99b2d5f977

MALICIOUS

RTF

101.0 KB Created: 2019-06-03 09:37:00 First seen: 2026-06-05

MD5: 598bfd6623271fa9588fefa1118382fd SHA-1: 71ccc7e5c1e3ed191520bbf0cd6cef79a2950043 SHA-256: 5a619d99b2d5f977bb2b15637ab0ebecdee5a3a3c0acd92f106182789fb66e27

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_off00002986.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x2986	19521 bytes
SHA-256: `4eb6607cb78154a3f21b2be7cc6e339da9083b8ecb35decb439f55f378d17d1b`

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