Malicious Office (OOXML) / .XLSM — malware analysis report

Static analysis result for SHA-256 f192095b1934154d…

MALICIOUS

Office (OOXML) / .XLSM

185.6 KB
MD5: d7e55f9069553ac7eb2e26820d8f0116 SHA-1: 174f719558ed0711e2719858dfa38e38c622bbb6 SHA-256: f192095b1934154d7e4cf7fb3c72a9da4415f7301e7517061b3dbf64b0a502f1
220 Risk Score

Malware Insights

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

The sample is an XLSM file containing VBA macros. The document body explicitly contains a PowerShell command designed to download an executable from a suspicious URL and then execute it. This indicates a downloader functionality. The critical ClamAV detections further confirm its malicious nature.

Heuristics 6

  • ClamAV: Xls.Malware.Sagent-10035294-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Malware.Sagent-10035294-0
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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://mirchvdo.xyz/wp-content/plugins/fighter/SG/YGV-050.exe

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
b4703237e499d808153fef886409f5f06c0930c16389ba22fd488438c80b1b20		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 1890 bytes
vbaProject_00.bin
80dea6c561d0e24b751fb9502a3873144b96c74fd13991c5bbd9c36817a42558		 vba-project OOXML VBA project: xl/vbaProject.bin 5632 bytes
Detection
ClamAV: Xls.Malware.Sagent-10035294-0
Obfuscation or payload: unlikely

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