RTF malware analysis — malicious · 0523c012c8d1bdeb

MALICIOUS

RTF

24.2 KB First seen: 2023-05-30

MD5: 52a40a96fd119c25e2e6c945c2dd64b2 SHA-1: b060ca795a632131b388d307ab742d1154137765 SHA-256: 0523c012c8d1bdeba2cdefa7ad400cbd029222e79700cf66314c0fb76057420e

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF file contains OLE object data and triggers OLE activation via \objupdate, indicating an attempt to embed and execute malicious content. The presence of \objupdate and Ole10Native stream suggests a vulnerability exploitation for arbitrary code execution. No document body or script content was available for further analysis, limiting the understanding of the specific payload.

Heuristics 3

Ole10Native stream in RTF OLE object high CVE related RTF_OLE10NATIVE_STREAM

RTF contains an embedded OLE object with an Ole10Native stream. This is a strong payload-container signal and is related to Word/OLE exploit delivery, but it is not specific enough on its own to assign a CVE.
\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_off00000d01.bin` `57602e4aa00bb3b556b6a8ed07b7b251422b0c476f2aac23fce6b0d9c9bdfa2c`	rtf-objdata-decoded	RTF \objdata at offset 0xD01	4194 bytes

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