Dridex — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 861f0ff89dfec337…

MALICIOUS

Office (OLE) / .XLS

797.5 KB Created: 2021-01-13 12:48:45 Authoring application: Microsoft Excel
MD5: 70582dd298a2785233bdc58ef6ebf124 SHA-1: 385ab29a95d5bd46981a3d4b11fe42c2c50059ae SHA-256: 861f0ff89dfec337fe08a17a305020ef1b7d27efb4c367793138561020cd93f8
288 Risk Score

Malware Insights

Dridex · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1059.001 PowerShell T1204.002 Malicious File

The file contains a Workbook_Open macro that uses GetObject and WScript references, indicating it is designed to execute code upon opening. The ClamAV detection and heuristic firings strongly suggest this is a Dridex dropper. The embedded URLs are likely used to download and execute a second-stage payload.

Heuristics 9

  • 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.
  • 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
  • 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://awsm.nkdynamicservices.com.au/awsm/uqfsuTJQB2R.php
    • https://GesDoc.fda.com.pe/wp-content/plugins/members/addons/members-acf-integration/XOIFkw1QtbqgkS.php
    • https://abm-it.com/wp-content/plugins/wordpress-seo/vendor/composer/RJiulqq6iCYBeO.php
    • http://hedgelong.com/NJm75ajGNU.php
    • https://plomberielafleur.com/wp-content/plugins/js_composer/config/buttons/yhNkVgbHfkia6f.php
    • http://appliedlogisticalconcepts.com/wp-content/plugins/rounding-master/demo-importer/demo/MRbjhZoUav.php
    • http://adsofonline.com/wp-includes/js/tinymce/plugins/charmap/SdmAPGR17.php
    • http://kurdcoding.com/RokUoZsNpAt8mc.php
    • https://teddyburtonburger.com/wp-content/plugins/elementor/modules/dynamic-tags/xvOCtod5agDovX.php
    • http://findmysounds.com/wp-content/plugins/updraftplus/central/classes/Qexo3HCh.php
    • http://www.w3.org/1999/XSL/Transform

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
fac783c38f4c2decdca5b4704a696d3af43b1bbb45c6afd97bcf189b550d7b41		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21942 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 125 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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