RTF malware analysis — malicious · db4974a9d863c3e4

MALICIOUS

RTF

23.2 KB First seen: 2023-06-13

MD5: 5844f5934abfb6e17f5706c437673694 SHA-1: 56433133e0e223b5b0c5c3c57bd44339503a9341 SHA-256: db4974a9d863c3e46c11082d3dd8d0a9a163dacee51aeb98419b3e2235671e25

60 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample is an RTF document containing OLE object data, indicated by the RTF_OBJDATA heuristic. The RTF_OBJUPDATE heuristic firing at offset 0x951 suggests that the embedded OLE object is designed to be activated automatically, which is a common technique for exploiting vulnerabilities or delivering malicious payloads. No document body or script content was available for analysis, but the presence of OLE object data strongly implies an attempt to execute embedded code.

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_off00000977.bin` `20f91e9e61e003a0f7f1620a09b851c1651f0a5bc8fcaad099ac4bfe7cbf097b`	rtf-objdata-decoded	RTF \objdata at offset 0x977	4174 bytes

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