Dridex — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 05b9806f446c71ca…

MALICIOUS

Office (OLE) / .XLS

815.0 KB Created: 2021-01-13 12:59:25 Authoring application: Microsoft Excel
MD5: 82ee594ab9d12d0a00bf399beb7f4e1f SHA-1: 5b58a1fefd63ca221b0eeca61b9378db25ae0eb1 SHA-256: 05b9806f446c71ca46bbddc10176bf28838430bbecb9545cc730fdb93b205476
250 Risk Score

Malware Insights

Dridex · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious Excel document containing a Workbook_Open VBA macro. This macro is designed to execute a second-stage payload by downloading it from one of the embedded URLs. The ClamAV detection name 'Doc.Dropper.Dridex-9845759-0' strongly suggests the Dridex family. The use of VBA macros and the dropper functionality are consistent with common Dridex distribution methods.

Heuristics 8

  • ClamAV: Doc.Dropper.Dridex-9845759-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.Dridex-9845759-0
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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.
  • 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)
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://impulsionfood.com/wp-content/plugins/updraftplus/css/tether-shepherd/ipaO64BN.php
    • http://awsm.nkdynamicservices.com.au/awsm/uqfsuTJQB2R.php
    • https://www.dropsitelite.it/wp-content/plugins/woocommerce-services/i18n/json/on0rRPN6iWl5uT.php
    • https://travelspyders.com/wp-content/plugins/cartflows/theme-support/astra/ZaUT8RbcNuB7.php
    • http://napletonvolkswagen.com/M/HF840TfNngNdGR.php
    • http://millepharma.com/1/storage/modification/catalog/controller/TuF2Sj1GiNaxO7W.php
    • https://abm-it.com/wp-content/plugins/wordpress-seo/vendor/composer/RJiulqq6iCYBeO.php
    • http://www.sarcars.in/wp-includes/js/tinymce/themes/inlite/Fj1Me7I5aqhuT.php
    • https://www.blackoutthebox.com/wp-content/plugins/woocommerce/src/Admin/NsWEtEuMIGClJnM.php
    • http://kurdcoding.com/RokUoZsNpAt8mc.php
    • http://www.w3.org/1999/XSL/Transform

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
f9e4b7ea2304ed9582259ce2d6b185124c443be59a94305a7bad5bbbc7ac8fd5		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 73462 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.