RTF malware analysis — malicious · d40ae103b5820e08

MALICIOUS

RTF

4.6 KB First seen: 2022-11-10

MD5: b40d8f0567313c0edac3f3cce340b9cf SHA-1: 937dc309021c5fbc78979a5303b29233af4458de SHA-256: d40ae103b5820e08c78479f685cbf87e449f2761d61fc056893f0fe641d97e07

60 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains an embedded OLE object, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic suggests that this object is designed to be automatically activated, likely exploiting a vulnerability to execute code. The embedded object itself is not directly readable, but its presence and the activation heuristic strongly suggest a malicious intent to compromise the user's system.

Heuristics 2

\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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00000073.bin` `f40d68adde70e36fbae22975ae3ad45184645f03296871a34d00a9b610c9633a`	rtf-objdata-decoded	RTF \objdata at offset 0x73	2094 bytes

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