Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 e648ef7335352f54…

MALICIOUS

Office (OLE) / .XLS

71.5 KB Created: 2021-11-17 02:06:11 Authoring application: Microsoft Excel
MD5: c326920b401ea5b61425d83208727b0e SHA-1: bea2171ade39ccc8f40cc168c79ca629e8663066 SHA-256: e648ef7335352f54a20f4107dfa3545126fbbbcc1019c2abad619ec1cbf8fd0b
160 Risk Score

Malware Insights

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

The Workbook_Open macro is configured to execute a PowerShell command. This command is constructed by concatenating strings to form a download and execution sequence. Specifically, it attempts to download 'jogd.exe' from 'http://ddl7.data.hu/get/375461/13126942/jogd.exe' and save it as 'whetheryourself.exe' in the public documents directory, then execute it. The macro also writes a command to a file named 'dssdd.cmzd' in the public user directory, which is then executed via ShellExecuteW.

Heuristics 5

  • Reference to ShellExecute API high SC_STR_SHELLEXEC
    Reference to ShellExecute API
  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • 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
  • Suspicious extracted artifact medium 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
35da70899626ef4f28226aa3098199d982cecc817b23008651ff7f2e03bc0684
vba-macro oletools.olevba.extract_macros (decoded VBA source) 1885 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s).