RTF malware analysis — malicious · 974617748ce09208

MALICIOUS

RTF

229.6 KB Created: 2020-01-14 12:02:00

MD5: b8eba2f389e61d67f1d8fd173d51f6cf SHA-1: 3b67f41d29e86eb2f8230e96d1a1426f34afdb3e SHA-256: 974617748ce092087ec0a9897ee5695f56b29f6396daffb9c4d865810d8920d0

80 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The RTF document contains multiple OLE objects, with one specifically triggering an \objupdate heuristic, indicating an attempt to automatically activate embedded content. While no scripts were extracted, the presence of OLE objects suggests a delivery mechanism for malicious payloads. The document body is minimal and does not provide further context on the lure.

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 3 \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/2003/wordml

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000898b.bin` `a111bf38f9ddad3e86a308ff3b0051769af4709fea86c346450b9a9a6399a9dc`	rtf-objdata-decoded	RTF \objdata at offset 0x898B	15892 bytes

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