Office (OOXML) / .OLE malware analysis — malicious · b00639f09489f0bc

MALICIOUS

Office (OOXML) / .OLE

150.1 KB Created: 2020-05-14 21:03:00 UTC Authoring application: Microsoft Office Word 12.0000

MD5: b821af48603a78ab680388bea898f049 SHA-1: 42f1deaa05a11840e04b454115a495c95f2d78eb SHA-256: b00639f09489f0bc77a9ca15983032d3169bbbc53df829fbc9bbd7230dd0fd3e

148 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The OOXML document contains VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code automatically when the document is opened. The presence of a CreateObject call further suggests the execution of arbitrary code. No specific malware family could be identified, and no external URLs or executable files were extracted.

Heuristics 6

Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
VBA project inside OOXML medium OOXML_VBA

Document contains vbaProject.bin — VBA macros present
Environ() call (env variable access) low OLE_VBA_ENVIRON

Environ() call (env variable access)
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.openxmlformats.org/markup-compatibility/2006
- http://schemas.openxmlformats.org/officeDocument/2006/relationships
- http://schemas.openxmlformats.org/officeDocument/2006/math
- http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
- http://schemas.openxmlformats.org/wordprocessingml/2006/main
- http://schemas.microsoft.com/office/word/2006/wordml

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `56e73ed9c4985b4507523362a98089ccc52b0cc5205c1a34ee58dc88672a0f0d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source from OOXML)	2003 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.
`vbaProject_00.bin` `ee52615e4ac14cd37730ee584509fc9902a4c1b7d2b8f27e844cccb9165b005f`	vba-project	OOXML VBA project: word/vbaProject.bin	9216 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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