RTF malware analysis — malicious · 01bc3bafc8056045

MALICIOUS

RTF

1.53 MB Created: 2019-09-17 13:59:00

MD5: a8b6c86658b402dc67795a57d4f7b000 SHA-1: 56b301648cdfffa0b245534efc2072299744ec50 SHA-256: 01bc3bafc8056045820f999ff92fcd8045c435e7900f27d6f75a81c4119ddd8b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution

The RTF file contains embedded OLE object data and uses \objupdate to force activation, indicating an attempt to exploit vulnerabilities for code execution. While no specific script was extracted, the presence of OLE objects and the RTF structure strongly suggest a malicious payload delivery mechanism. The embedded URL, though benign, is indicative of the file's nature.

Heuristics 4

\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
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.microsoft.com/office/word/2{

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00168e65.bin` `387514308108d72d6c7b144eecc76f5fa79dc5dc1b51cb4b687fbb36d17564c5`	rtf-objdata-decoded	RTF \objdata at offset 0x168E65	1413 bytes

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