Office (OLE) / .XLS malware analysis — malicious · d0fcc909f3d25f1f

MALICIOUS

Office (OLE) / .XLS

126.0 KB Created: 1997-02-26 13:46:56 Authoring application: Microsoft Excel

MD5: 4c8a3b4300a240957831c354480de646 SHA-1: 1198f159aeed9eb520a117ed034b290c8cc71182 SHA-256: d0fcc909f3d25f1ff4d3a8246ce5ba66410ac8dda27fdfd76322f81eef2cb5c5

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.002 Spearphishing Attachment

The sample is an XLS file containing VBA macros, specifically a Workbook_Open macro, which is a common technique for executing malicious code upon opening. The document body presents a list of IT job responsibilities, likely intended to appear legitimate and encourage the user to enable macros. No specific malware family could be identified, but the presence of a Workbook_Open macro suggests an attempt to download and execute a second-stage payload.

Heuristics 4

Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
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 macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Environ() call (env variable access) low OLE_VBA_ENVIRON

Environ() call (env variable access)

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `e1f44206afd3eaa61fe38a9a18941b3feaa04fed70508ad16d446f56f5b2f8d4`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	11164 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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