RTF malware analysis — malicious · 2022d9cc42ed2838

MALICIOUS

RTF

1.24 MB

MD5: 4fc5ba9426e9191aab4e694e7e703e13 SHA-1: b5ebaf2f5af220fe1b1de5433c2e39ff16b0c0b4 SHA-256: 2022d9cc42ed2838daa442561107c29297bddb88b36222345c10b39164e66819

80 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The RTF document contains multiple embedded OLE objects, with one specifically triggered by an \objupdate command. This suggests an attempt to exploit a vulnerability within the RTF parsing or OLE object handling to execute arbitrary code. No document body text or scripts were extracted, limiting further analysis of the specific lure or payload.

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 3 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00000cd5.bin` `3b41bd3814d4f020b214213c74b0bc1d36aa94b1cc0394461b8daeee9a1333e4`	rtf-objdata-decoded	RTF \objdata at offset 0xCD5	9361 bytes
`objdata_01_off00005b20.bin` `e4d277874d9b18c12a63a3ef5684febe5889d08550bc2357b9e03cb4855dff42`	rtf-objdata-decoded	RTF \objdata at offset 0x5B20	276 bytes
`objdata_02_off0000637a.bin` `08b25582384c65e73391d1c44a9e21c0397701fb25e6083ec03f3926fc794e2a`	rtf-objdata-decoded	RTF \objdata at offset 0x637A	142846 bytes

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