Office (OOXML) / .XLSX malware analysis — malicious · 2d2fe76e7fe26ce7

MALICIOUS

Office (OOXML) / .XLSX

92.0 KB Created: 2015-06-05 18:17:20 UTC Authoring application: Microsoft Excel 12.0000

MD5: 1daafeed2a56b39ef1586f025101a050 SHA-1: b9b8a0c0ebaca1ac372b489f8fd5d5a3f1256aaa SHA-256: 2d2fe76e7fe26ce7ea2a2bdd03c850a1c43fd0e3ebf58032b69b4c28ca638a0c

200 Risk Score

Heuristics 5

ClamAV: Xls.Downloader.EmotetRed02221-9938910-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Downloader.EmotetRed02221-9938910-0
Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_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

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `de7bcbc45ff0a77d05d9af662bacc316e71be11a980e94f6673e556a5dd9d1bc`	vba-macro	oletools.olevba.extract_macros (decoded VBA source from OOXML)	12808 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` `9b87744b28c7683dc5553f1370a36d322b70e7ad7cbee54516ab5baf333997e1`	vba-project	OOXML VBA project: xl/vbaProject.bin	37888 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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