Office (OLE) / .EXE malware analysis — malicious · a356e835cb09399c

MALICIOUS

Office (OLE) / .EXE

66.0 KB Created: 1980-01-05 18:50:44 Authoring application: Microsoft Excel

MD5: 6d2c3fe36011bdb620dc30e5920bc6c1 SHA-1: b8ceebcc01068ca9035ea9b81c060ad633cadcc1 SHA-256: a356e835cb09399ca414734eba54e3ed5feeb69274eeb1ea79cdb26efbb14229

200 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell

The file is an OLE executable containing VBA macros, specifically an Auto_Open macro that utilizes the Shell() function. This indicates the macro is designed to execute arbitrary commands upon opening. The presence of the Auto_Open macro and the Shell() call strongly suggests a malicious intent to run external processes or scripts.

Heuristics 5

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
Auto_Open macro high OLE_VBA_AUTO

Auto_Open macro
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `8917617a1c9a0d57d2cb79e673952c714b0d51186abb97022569166b66d162b9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	11774 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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