Emotet Office (OLE) / .XLS malware analysis — malicious · dce8b4e3a3945a4c

MALICIOUS

Office (OLE) / .XLS

142.5 KB Created: 2006-09-28 05:33:49 Authoring application: Microsoft Excel

MD5: 64b0fae4296f73cd9570b7c6ff24639d SHA-1: bd868bcbf2002e4bea578272ca9c52c39b0893ab SHA-256: dce8b4e3a3945a4cf59ef262b41e181ad5feb029a8d798475a39b953ed00d411

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including Workbook_Open and CreateObject calls, strongly indicate malicious intent. The VBA script contains obfuscated code that attempts to download and execute a second-stage payload from multiple URLs. Specifically, the script reconstructs a complex URL string: "http://rkeprua.com/inclub-l/FAXbVAAO1dU/ ,http://pozhadvokat.com/images/QmZXA9kRU8xZFG/ ,http://quens.renovatio.ltd/wp-includes/LAH/ ,http://renovاتimarketing.com/renovاتimarketing.com/A/ ,http://remedy.eventmasти.com/eappn/lpN6dcAppn/ ,http://keluargamalaysia.blibah.com/cgi-bin/FUzc3KOKN3DNe/ ,http://pdbsmab.insanrabany.sch.id/gkvb/sXVYo8HsPSFQh/ ,http://pinna-homesus.net/870xg9/pNp3a1iHCKaZwYE V/ ,http://dandtremierhomes.com/eappn/lpN6dcAppn/ ,http://keluargamalaysia.blibah.com/cgi-bin/FUzc3KOKN3DNe/". Additionally, a suspicious batch file path, c:\programdata\rtyusdj.bat, was observed.

Heuristics 7

ClamAV: Doc.Downloader.EmotetExcel02226-9938630-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetExcel02226-9938630-0
Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
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` `ffa342a8bb4eb541fe833e6254cf3f6e2f7d6f5436c011440a061030b6684f64`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6473 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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