Dridex — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 9ee8a6a201f5c956…

MALICIOUS

Office (OLE) / .XLS

708.0 KB Created: 2021-01-13 12:52:44 Authoring application: Microsoft Excel
MD5: a620468e6531acdd66d489d74320a54d SHA-1: 7055184739c438f2fdc770faced61b5a533a3aac SHA-256: 9ee8a6a201f5c956b8b37d692242a628d2d08d315629a35decc56c35439150a5
288 Risk Score

Malware Insights

Dridex · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.002 Spearphishing Attachment

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_WBOPEN, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA code. The Workbook_Open macro and GetObject call suggest the script is designed to download and execute a second-stage payload from one of the numerous unknown-reputation URLs. The presence of these indicators and the specific ClamAV signature point towards the Dridex family.

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 https://dev.unitedwebgroup.com/jimmychesterfield.com/wp-includes/SimplePie/Decode/HTML/bAn3295lG3oxSND.php
    • http://millepharma.com/1/storage/modification/catalog/controller/TuF2Sj1GiNaxO7W.php
    • http://sefinancer.fr/wp-content/themes/twentynineteen/sass/blocks/SlyOzj2S7kfU8q.php
    • https://izwan.mindscope.my/dI7vQ3mHBd7Djv.php
    • http://linia.rs/css/theme/GSB36ZV2sQVn.php
    • https://yogiramsuratkumar.com/album/res/contentflow/img/r7QOWIwYj5.php
    • http://go7wallet.com/app/plugins/cordova-plugin-statusbar/src/browser/HLn3obcR1vMJZNt.php
    • https://holylandblessing.com/css/font-awesome/css/micons/fonts/H3yKJwPPyD.php
    • http://omjeemart.com/ksbmadmin/source/vendor/phpunit/php-code-coverage/Y8z6bnvahXwNw.php
    • http://klimmen.com.br/wp-content/themes/one-page-express/customizer/kirki/includes/output/property/fOqqPp4HlYJu.php
    • http://www.w3.org/1999/XSL/Transform

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
0511f16a2008a267e21eddc356d5f0d5acc22d59f0fa8264f254516a677c3181		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18528 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.