Dridex — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 06cc3314ba8dbb16…

MALICIOUS

Office (OLE) / .XLS

785.5 KB Created: 2021-01-13 17:16:03 Authoring application: Microsoft Excel
MD5: b1fecf61c2da48d2716df0cdfa0f01c0 SHA-1: e821b5f8004a9668c7cc2feee02b0dc35d37cc27 SHA-256: 06cc3314ba8dbb16474ae45f254a9d90c103472a279698b7a05d83b09de4b734
250 Risk Score

Malware Insights

Dridex · confidence 95%

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

The file contains a Workbook_Open VBA macro that is designed to execute code upon opening. This macro references Windows Script Host and uses GetObject, indicating it's likely preparing to download and run a second-stage payload. The ClamAV detection as 'Doc.Dropper.Dridex-9845759-0' strongly suggests the Dridex family, which commonly uses this dropper technique. The numerous unknown-reputation URLs are potential C2 or payload hosting locations.

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 http://go7wallet.com/app/plugins/cordova-plugin-statusbar/src/browser/HLn3obcR1vMJZNt.php
    • http://adsofonline.com/wp-includes/js/tinymce/plugins/charmap/SdmAPGR17.php
    • http://univertech.com/wp-includes/js/tinymce/plugins/charmap/huR9GcNBnM6.php
    • http://kurdcoding.com/RokUoZsNpAt8mc.php
    • http://mek-one.com/test/hwdWR7DS.php
    • https://yogiramsuratkumar.com/album/res/contentflow/img/r7QOWIwYj5.php
    • http://multi-chemical.com/Rvlx1evnUjlGIy.php
    • https://gracejukes.com/wp-content/plugins/elementor/data/base/dQ37ktCYJatfHdX.php
    • https://www.blackoutthebox.com/wp-content/plugins/woocommerce/src/Admin/NsWEtEuMIGClJnM.php
    • https://teddyburtonburger.com/wp-content/plugins/elementor/modules/dynamic-tags/xvOCtod5agDovX.php
    • http://www.w3.org/1999/XSL/Transform

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
f5c9fcd027ab28864228a82b7914b942c5120e45e15039b53858408961b54bb1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 60975 bytes

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