Office (OLE) / .XLS malware analysis — malicious · 8adefee5d22be528

MALICIOUS

Office (OLE) / .XLS

133.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel

MD5: bb7efee7b91da7b678391e7c2b255a75 SHA-1: 1af75ae49e7208ca54fe7b3403d59046bee33bdb SHA-256: 8adefee5d22be5282f66fbc8973efcd7c7a94f607d00c7f2f5776e3a7338b604

320 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.003 Windows Command Shell T1204.002 Malicious File T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file contains VBA macros that are automatically executed upon opening, indicated by the Workbook_Open heuristic. The script references Wscript.Shell and PowerShell, suggesting it's designed to download and execute a second-stage payload from a list of URLs. The reconstructed URL list is: http://afieeti.com/b/MzLJFbjwVz/V/htttps://sagepilatelinsolne.com/y/dl/e/,http://cageonclub.su/tour3d/UFZLYVtHKA7KAA/,https://msnew24.in/wp-content/content/v2js/,http://bet-on.by/cgi-bin/RAm4y/,https://ukrbaget.com.ua/esphop_app/IuCMPhljWS8P7ZuaQ/,http://qmax-vision.kz:80/basket/Z/,https://tochkazreniya.com/yande_kas/5rNTK1bq9a7/,https://hegmat20.com/wp-incluede/d6Lln9aGccU0ELA9c/,https://izogard.com/b/TU/ ,http://sep.dfwsolar.cl/h3v/kbCieSRW5h5X/. Additionally, a suspicious file path c:\programadata\rundl3.dll was reconstructed, likely indicating where the downloaded payload would be saved.

Heuristics 8

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

ClamAV detected this file as malware: Doc.Downloader.EmotetExcel02226-9938630-0
Reference to PowerShell high SC_STR_POWERSHELL

Reference to PowerShell
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` `2371f091b169c7918c945b8974b3f60437212f84d1a9d429701826689481f8d8`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6376 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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