Sagent — Office (OOXML) / .XLSM malware analysis

Static analysis result for SHA-256 ada7301339123e87…

MALICIOUS

Office (OOXML) / .XLSM

91.4 KB
MD5: eee16d07039e331468d228120bebc9c2 SHA-1: 08911317a618ebd1041c85589b5d52e4d837a39c SHA-256: ada7301339123e87473a4a5970ca4df1b0bf6031812bdb58e8e8dde26f89671a
220 Risk Score

Malware Insights

Sagent · confidence 95%

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

The file is an XLSM document containing VBA macros. The macros execute a PowerShell command that downloads a file from http://185.29.11.32/wz.exe and saves it as C:\Users\Public\Downloads\fmpizrzwl.exe, then executes it. ClamAV signatures confirm this is malicious, specifically identifying it as Sagent malware.

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://185.29.11.32/wz.exe

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
f3a071c66c28cf2660cbb17980de2d30e2f28f933b3a0ae1a70964274e522f41		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 1310 bytes
vbaProject_00.bin
7e9be354b39cab5744f4f97e13c728fcf13728ea91a698b69f83878bc10539e9		 vba-project OOXML VBA project: xl/vbaProject.bin 5120 bytes
Detection
ClamAV: Xls.Malware.Sagent-10035294-0
Obfuscation or payload: unlikely

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