RTF malware analysis — malicious · 4c34d35aa6bfb512

MALICIOUS

RTF

99.6 KB Created: 2020-03-26 23:23:00

MD5: 2a6d6ea570bf94f27a057e2181247e6e SHA-1: 602c808c644bd96cbf7f6d4423d22fd1bff8b538 SHA-256: 4c34d35aa6bfb51235832f2f653d4d95ac18f8050d7b9894a3810492341c5ed2

80 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The RTF document contains an embedded OLE object that is triggered by \objupdate, indicating an attempt to execute malicious content. The document body impersonates the PTIN Verification Team, warning tax preparers of potential identity theft and threatening PTIN closure if an attached document is not reviewed, serving as a social engineering lure. No scripts were extracted from this sample.

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/2003/wordml}}\paperw12240\paperh15840\margl1440\margr1440\margt1440\margb1440\gutter0\ltrsect

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off00002d2d.bin` `e8b73d392b657717e93dce91336196111ddbc958f7e2c2d3537d4d6bf22834b8`	rtf-objdata-decoded	RTF \objdata at offset 0x2D2D	18491 bytes

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