RTF malware analysis — malicious · 106a7761b9af76df

MALICIOUS

RTF

113.9 KB First seen: 2024-06-21

MD5: b8ad31a6943b7970686fe78507d23889 SHA-1: 24f5c663941e3b1a9f38ddd764616fe335b672e0 SHA-256: 106a7761b9af76df04eecbd3f1b01050e4818117fc4be1102a22cbf7cd1d8898

60 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains OLE object data and an \objupdate directive, indicating it's designed to automatically activate embedded objects. This is a common technique for delivering malicious payloads, often via spearphishing attachments. The specific OLE object data is extracted as objdata_00_off00000fd4.bin, which is likely the initial stage of a multi-stage attack.

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_off00000fd4.bin` `8651084aa867fa6ce76fc092156b7b8d82e29b5e2af1541c543b6ae6128dceda`	rtf-objdata-decoded	RTF \objdata at offset 0xFD4	4671 bytes

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