RTF malware analysis — malicious · c13a2c140be5190d

MALICIOUS

RTF

26.8 KB First seen: 2023-05-31

MD5: a75b82ea2020ba61e2679c2f09d589cc SHA-1: b6bf123711ef4204675bf63ddd5e65ac8399eaa1 SHA-256: c13a2c140be5190da2ef623ed656ae55540ec61a7fbcf9f59ae4da3e0f7001a1

80 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious File T1027 Obfuscated Files or Information

The RTF file contains embedded OLE objects, and a ".objupdate" directive is present, indicating an attempt to activate these embedded objects. This strongly suggests the file is designed to exploit vulnerabilities or trick the user into executing embedded malicious content. No document body or script content was available for further analysis, limiting the ability to determine the specific payload or family.

Heuristics 3

\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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off000016a4.bin` `877491ad7b623f4c47babbecbb893d007ce9adeede5acfcebb910629c12cda20`	rtf-objdata-decoded	RTF \objdata at offset 0x16A4	4178 bytes

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