Office (OLE) / .XLS malware analysis — malicious · 41029841963dd63e

MALICIOUS

Office (OLE) / .XLS

73.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel First seen: 2021-10-23

MD5: 54842cc23dd56820a0ef54370779fcda SHA-1: b20cc81176aaedea82fd6537f9f50da163910890 SHA-256: 41029841963dd63e4726ccc3bb012a5cd0e3ae47b1298692699d6d4704cca6f7

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The Workbook_Open macro executes a command that constructs a PowerShell command to download a second-stage payload from 'http://thepunchlineexpose.com/Manager/AnyDesk.exe' and save it as 'C:\Users\Public\Documents\weekshe.exe'. The macro also writes this command to a file named 'C:\Users\Public\Documents\institutionsport.cm' before executing it via 'shel' + 'l.application'. This indicates a downloader functionality.

Heuristics 5

Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
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` `d5387914e198af7231991211bf5d0f562a3477459899e11bf62650de3f4f0162`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1170 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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