Dridex — Office (OOXML) / .XLSM malware analysis

Static analysis result for SHA-256 d6ee817b81f83f69…

MALICIOUS

Office (OOXML) / .XLSM

412.8 KB Created: 2020-05-26 09:19:34 UTC Authoring application: Microsoft Excel 16.0300
MD5: 1992a712f44f96bd0552b3092a82f96d SHA-1: 646befcb2d99c3b5f2bd56aa74cbe18b5cc216de SHA-256: d6ee817b81f83f699a9a9a9b242f9f99680ef1a37abcbf49a26bff50466c43a6
260 Risk Score

Malware Insights

Dridex · confidence 95%

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

The file is an XLSM document containing VBA macros, specifically a Workbook_Open macro that utilizes Shell() and CreateObject() calls. ClamAV identifies it as 'Xls.Downloader.DridexGreen09213-9890103-0', strongly suggesting a Dridex downloader variant. The presence of a Workbook_Open macro indicates an automated execution upon opening, likely to download and run a second-stage payload. No document body text was available for analysis, but the heuristics and ClamAV detection are sufficient for a high-confidence assessment.

Heuristics 7

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Xls.Downloader.DridexGreen09213-9890103-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.DridexGreen09213-9890103-0
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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 project inside OOXML medium OOXML_VBA
    Document contains vbaProject.bin — VBA macros present
  • 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://schemas.openxmlformats.org/spreadsheetml/2006/main
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac
    • http://schemas.microsoft.com/office/spreadsheetml/2014/revision
    • http://schemas.microsoft.com/office/spreadsheetml/2015/revision2
    • http://schemas.microsoft.com/office/spreadsheetml/2016/revision3

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
9b2241882fd372ebe9beea7ae1128e5d54ec52401feea14eeab8aa5413da7ab2		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 3120 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s). Carved macro source contains an auto-exec entry point and execution/download terms.
vbaProject_00.bin
5bd352e4a934652227bbe23e35aa498da1c7bd6428b90e097ad323367e72a754		 vba-project OOXML VBA project: xl/vbaProject.bin 19968 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s). 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.