RTF malware analysis — malicious · c79f2b23b3a82e97

MALICIOUS

RTF

1.10 MB Created: 2020-03-22 17:37:00

MD5: 7c2cc28d39d3c7307f1c76c449244656 SHA-1: 6b47398e09042896e3999a62600b9d02c9b509fe SHA-256: c79f2b23b3a82e97e61b5ded60effba7cf6efa9cab6548f91cc3e372e1462871

80 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF document contains an embedded OLE object that is triggered for activation via \objupdate. This indicates an attempt to exploit a vulnerability related to OLE object handling to execute arbitrary code. No specific malware family could be identified, and the document body was empty, limiting further analysis of the intended lure.

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000992f.bin` `e08f3e9735ac3fd67894ec51742decb1ee71caab63e3af5b3b0c4805eaee3e7a`	rtf-objdata-decoded	RTF \objdata at offset 0x992F	118042 bytes

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